> ## Documentation Index
> Fetch the complete documentation index at: https://apidocs.document360.com/llms.txt
> Use this file to discover all available pages before exploring further.

# List comments on an article

> Returns the comment threads on an article in a single resolution status (defaults to `open`),
newest first. Each comment's `id` matches the `data-comment-id` attribute of its marker in
the content returned by `GET /v3/projects/{projectId}/articles/{articleId}?content_mode=raw`, so a
consumer editing the content can re-associate a thread with the exact text it annotates. Use
`commented_text` to read the annotated text directly, without searching the content yourself.
            
The list is cursor-paginated by modification time: pass the response's `next_cursor` back as
`cursor` to fetch the next (older) page. `total_count` is populated on the first page only.
            
**Access:** requires the `articles.update` permission, passes the same node-level ACL as the
article itself, and requires a resolvable user identity — a machine-to-machine token with no acting
user is rejected with `422`.

### Related endpoints

**Next**
- `POST /v3/projects/{project_id}/articles/{article_id}/comments` — Starts a new thread on this article.
- `PATCH /v3/projects/{project_id}/articles/{article_id}/comments/{comment_id}` — Resolves, reopens, or edits one of the threads returned here.

**See also**
- `GET /v3/projects/{project_id}/articles/{article_id}` — Reads the article content the comment markers live in. Each comment's `id` is the `data-comment-id` of its marker, so fetch with `content_mode=raw` to line them up.

## OpenAPI

````json GET /v3/projects/{project_id}/articles/{article_id}/comments
{
  "openapi": "3.0.1",
  "info": {
    "title": "Document360 Customer API",
    "description": "Document360 RESTful APIs let you integrate your documentation with your software — onboard readers, manage articles, automate publishing, and more.\n\nFull reference: [API Documentation](https://apidocs.document360.io/docs).\n\n## Authentication\nV3 authenticates with an **API key** — not the `api_token` used by V1/V2. Create one in the Document360 portal under **Settings → Knowledge base portal → API keys**, then click **Create API key**. (Projects that still have the older screen show two tabs; choose **Enhanced keys (v3)**, or pick **API v3** from the Create menu.)\n\nSend it in the `X-API-Key` header:\n\n```\nX-API-Key: d360_sk_...\n```\n\nThe plaintext key is shown **once**, at creation — only its hash is stored, so a lost key must be replaced rather than recovered. Each key carries a fixed portal role, content role and content-access scope, supports an optional expiry, and can be disabled or deleted at any time from the same screen. Treat it as an opaque string: it is a pre-shared secret, not an OAuth 2.0 access token, and must not be parsed.\n\nFor flows that act on behalf of a specific person, V3 also accepts an OAuth 2.0 bearer token carrying the `customerApi` scope.\n\nAPI access is part of your subscription plan. If your plan does not include it, every endpoint returns `403` with the error code `FEATURE_NOT_IN_LICENSE` — including for keys created while an earlier plan was active. Contact your Customer Success Manager or `support@document360.com` to enable it.\n\n> **Note on terminology:** V1/V2 call these *API tokens* and manage them under **Settings → Knowledge base portal → API tokens**. V3 keys are a separate credential with their own screen, roles and scope — a V1/V2 token will not authenticate a V3 request.\n\n## Rate Limits\nAll endpoints are rate-limited per API key per project. Default limits vary by plan. When rate-limited, responses include `Retry-After`, `X-RateLimit-Limit`, `X-RateLimit-Remaining`, and `X-RateLimit-Reset` headers. Use exponential backoff with jitter for optimal retry behavior.",
    "termsOfService": "https://document360.com/terms",
    "contact": {
      "name": "Document360 Support",
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      "description": "Document360 API Hub - US data center"
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    {
      "name": "Projects",
      "description": "List and manage knowledge base projects. Export and import project documentation, and manage project-level site customization such as custom CSS and JavaScript."
    },
    {
      "name": "Projects > Import & export",
      "description": "Start a project export or import and poll the resulting background operation for completion."
    },
    {
      "name": "Workspaces",
      "description": "Manage workspaces and access workspace-scoped categories and articles."
    },
    {
      "name": "Workspaces > AI",
      "description": "Query the workspace with Eddy AI and submit feedback on AI answers."
    },
    {
      "name": "Articles",
      "description": "Create, read, update, and delete knowledge base articles and their settings, including bulk operations."
    },
    {
      "name": "Articles > Publishing & workflow",
      "description": "Publish and unpublish articles (single and bulk) and update the article workflow status."
    },
    {
      "name": "Articles > Versions",
      "description": "List, fork, and delete article versions."
    },
    {
      "name": "Articles > Attachments",
      "description": "Manage the files attached to an article — list, upload, and delete article attachments."
    },
    {
      "name": "Articles > Content drafts",
      "description": "(Internal) Stage AI-generated article content with an Accept/Reject review lifecycle — used by Eddy Copilot to preview content before committing to the live article body."
    },
    {
      "name": "Articles > Labels",
      "description": "Read and set the labels associated with an article."
    },
    {
      "name": "Articles > Comments",
      "description": "Read and create the comment threads authors and reviewers leave on an article's content, and reply to them. Each comment id matches the `data-comment-id` attribute of the corresponding marker in the raw article content, so adding a text-anchored comment takes two calls: update the content with the marker, then create the thread with the same id."
    },
    {
      "name": "Categories",
      "description": "Manage the category hierarchy that organizes articles. Create, update, and delete categories and their settings, including bulk operations."
    },
    {
      "name": "Categories > Page category",
      "description": "Read and update the content body of page-type categories, including bulk content updates."
    },
    {
      "name": "Categories > Publishing & workflow",
      "description": "Publish and unpublish categories (single and bulk) and update the category workflow status."
    },
    {
      "name": "Categories > Versions",
      "description": "List, fork, and delete category versions."
    },
    {
      "name": "Categories > Labels",
      "description": "Read and set the labels associated with a category."
    },
    {
      "name": "Categories > Comments",
      "description": "Read and create the comment threads authors and reviewers leave on a page category's content, and reply to them. Only page-type categories carry content, so other category types return `404`. Adding a text-anchored comment takes two calls: update the content with the marker, then create the thread with the same id."
    },
    {
      "name": "ArticleTemplates",
      "description": "Manage reusable article templates — per-language article skeletons that authors and AI tools (such as Eddy Copilot) can apply when starting a new article.",
      "x-displayName": "Article templates"
    },
    {
      "name": "Content reuse > Glossaries",
      "description": "Manage glossary entries — terminology definitions referenced inside articles via merge codes (`{{glossary.name}}`) and rendered as tooltips on the public KB."
    },
    {
      "name": "Content reuse > Snippets",
      "description": "Manage reusable snippets — markdown or WYSIWYG content fragments referenced across articles via merge codes (`{{snippet.name}}`)."
    },
    {
      "name": "Content reuse > Variables",
      "description": "Manage reusable variables — short text values referenced across articles via merge codes (`{{variable.name}}`)."
    },
    {
      "name": "AiWriterStyleGuides",
      "description": "Retrieve AI writer style guides configured for the project — voice / tone instructions Eddy Copilot follows when generating article content. Used to let users pick a style before kicking off generation.",
      "x-displayName": "AI writer style guides"
    },
    {
      "name": "RedirectRules",
      "description": "Manage article-redirection rules — 301/302 redirects from old article URLs to new locations after renames or restructures.",
      "x-displayName": "Redirect rules"
    },
    {
      "name": "Tags",
      "description": "Manage tags — labels used to classify articles, categories, and files for filtering and discovery."
    },
    {
      "name": "Labels",
      "description": "Manage labels shown on the article list and category tree. (Associating labels with a specific article or category lives under Articles and Categories.)"
    },
    {
      "name": "CustomFields",
      "description": "Retrieve the custom field definitions configured for the project. Custom field values are read and written through the article and category settings endpoints.",
      "x-displayName": "Custom fields"
    },
    {
      "name": "ApiReferences",
      "description": "Import, resync, and publish OpenAPI/Swagger specifications for API reference documentation.",
      "x-displayName": "API references"
    },
    {
      "name": "ApiReferences > Logs",
      "description": "Monitor API reference import logs and inspect individual log entries."
    },
    {
      "name": "Drive",
      "description": "Search Drive and retrieve files associated with an article, and track Drive background tasks."
    },
    {
      "name": "Drive > Folders",
      "description": "Create, read, update, and delete Drive folders."
    },
    {
      "name": "Drive > Files",
      "description": "Upload, copy, move, delete, and tag Drive files."
    },
    {
      "name": "Drive > Image drafts",
      "description": "(Internal) Stage uploaded or AI-generated images (committed to Drive and associated with a staged article draft) — used by Eddy Copilot."
    },
    {
      "name": "Readers",
      "description": "Manage reader accounts, invitations, and access scopes for private documentation."
    },
    {
      "name": "Readers > Groups",
      "description": "Create, read, update, and delete reader groups."
    },
    {
      "name": "Users",
      "description": "Manage users, their portal and content roles, and consolidated (effective) permissions within a project."
    },
    {
      "name": "Users > Groups",
      "description": "Manage user groups, their portal role, and consolidated (effective) group permissions."
    },
    {
      "name": "Roles",
      "description": "Create, read, update, and delete portal and content roles, list the users assigned to a role, and retrieve the permission dependency matrix."
    },
    {
      "name": "ContentAccess",
      "description": "Manage per-node content-access permissions — grant, allow, deny, and inheritance overrides for users and groups against specific versions, languages, categories, or articles, plus version/language site protection.",
      "x-displayName": "Content access"
    },
    {
      "name": "ContentAccess > Eligibility",
      "description": "List the readers and groups eligible to be granted content access."
    },
    {
      "name": "Languages",
      "description": "Retrieve configured languages for a workspace."
    },
    {
      "name": "Translations",
      "description": "Query translation status of articles across languages."
    },
    {
      "name": "Operations",
      "description": "Track asynchronous operations — long-running tasks (bulk updates, merges, exports) accepted with `202 Accepted` and an `Operation-Location` header. Poll until the operation reaches a terminal status, honouring the `Retry-After` header."
    },
    {
      "name": "Analytics > Articles",
      "description": "View article performance metrics including views, top articles, reader locations, and category breakdowns."
    },
    {
      "name": "Analytics > Search",
      "description": "View search usage metrics including top keywords, no-result queries, and bounced searches."
    },
    {
      "name": "Analytics > AI search",
      "description": "View AI-powered search metrics including usage trends, most-referenced articles, and trending topics."
    },
    {
      "name": "Analytics > Feedback",
      "description": "View reader feedback trends across articles, including top-performing articles and feedback keywords."
    }
  ],
  "externalDocs": {
    "description": "Document360 API Documentation",
    "url": "https://apidocs.document360.io/docs"
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      "tags": [
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    {
      "name": "Content",
      "tags": [
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        "Articles > Publishing & workflow",
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        "Articles > Content drafts",
        "Articles > Labels",
        "Categories",
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      "tags": [
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        "Users",
        "Users > Groups",
        "Roles",
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    {
      "name": "Operations",
      "tags": [
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      ]
    },
    {
      "name": "Analytics",
      "tags": [
        "Analytics > Articles",
        "Analytics > Search",
        "Analytics > AI search",
        "Analytics > Feedback"
      ]
    }
  ],
  "paths": {
    "/v3/projects/{project_id}/articles/{article_id}/comments": {
      "get": {
        "tags": [
          "Articles > Comments"
        ],
        "summary": "List comments on an article.",
        "description": "Returns the comment threads on an article in a single resolution status (defaults to `open`),\r\nnewest first. Each comment's `id` matches the `data-comment-id` attribute of its marker in\r\nthe content returned by `GET /v3/projects/{projectId}/articles/{articleId}?content_mode=raw`, so a\r\nconsumer editing the content can re-associate a thread with the exact text it annotates. Use\r\n`commented_text` to read the annotated text directly, without searching the content yourself.\r\n            \r\nThe list is cursor-paginated by modification time: pass the response's `next_cursor` back as\r\n`cursor` to fetch the next (older) page. `total_count` is populated on the first page only.\r\n            \r\n**Access:** requires the `articles.update` permission, passes the same node-level ACL as the\r\narticle itself, and requires a resolvable user identity — a machine-to-machine token with no acting\r\nuser is rejected with `422`.\n\n### Related endpoints\n\n**Next**\n- `POST /v3/projects/{project_id}/articles/{article_id}/comments` — Starts a new thread on this article.\n- `PATCH /v3/projects/{project_id}/articles/{article_id}/comments/{comment_id}` — Resolves, reopens, or edits one of the threads returned here.\n\n**See also**\n- `GET /v3/projects/{project_id}/articles/{article_id}` — Reads the article content the comment markers live in. Each comment's `id` is the `data-comment-id` of its marker, so fetch with `content_mode=raw` to line them up.",
        "operationId": "getArticleCommentArticleComments",
        "parameters": [
          {
            "$ref": "#/components/parameters/ProjectId"
          },
          {
            "$ref": "#/components/parameters/ArticleId"
          },
          {
            "$ref": "#/components/parameters/LangCode"
          },
          {
            "name": "status",
            "in": "query",
            "description": "Resolution status to filter by: `open` (default), `resolved`, or `reopened`.",
            "schema": {
              "enum": [
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                "resolved",
                "reopened"
              ],
              "type": "string",
              "allOf": [
                {
                  "$ref": "#/components/schemas/CommentStatus"
                }
              ],
              "description": "Resolution status of an inline comment thread.",
              "default": "open",
              "x-enumNames": [
                "Open",
                "Resolved",
                "Reopened"
              ],
              "x-enum-varnames": [
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                "Reopened"
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              "x-ms-enum": {
                "name": "CommentStatus",
                "modelAsString": true
              }
            }
          },
          {
            "$ref": "#/components/parameters/PageSize"
          },
          {
            "name": "cursor",
            "in": "query",
            "description": "Opaque cursor from a previous response's `next_cursor`. When provided, returns the page of comments following it.",
            "schema": {
              "type": "string",
              "example": "eyJpZCI6IjlhM2I0YzVkLTZlN2YtOGE5Yi0wYzFkLTJlM2Y0YTViNmM3ZCJ9"
            },
            "example": "eyJpZCI6IjlhM2I0YzVkLTZlN2YtOGE5Yi0wYzFkLTJlM2Y0YTViNmM3ZCJ9"
          }
        ],
        "responses": {
          "200": {
            "description": "Comments retrieved successfully.",
            "headers": {
              "X-RateLimit-Limit": {
                "description": "The maximum number of requests allowed in the current time window for this request's bucket. Read requests (GET/HEAD) and write requests (POST/PUT/PATCH/DELETE) have independent limits, applied per caller (API key or user) per project.",
                "schema": {
                  "type": "integer",
                  "format": "int32"
                }
              },
              "X-RateLimit-Remaining": {
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                "schema": {
                  "type": "integer",
                  "format": "int32"
                }
              }
            },
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/CommentListResponseApiResponse"
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                "examples": {
                  "Open comments on an article": {
                    "summary": "Two open threads: a text-anchored comment with one reply, and a block-anchored comment on a table. `next_cursor` is null because the page is not full.",
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                        "can_resolve_comments": true,
                        "comments": [
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                            "id": "3f8b1c22-9d4e-4a71-8c65-1b2a3c4d5e6f",
                            "title": "Clarify the prerequisite",
                            "comment": "<p>Can we state which plan this requires?</p>",
                            "commented_text": "This feature is available on all paid plans",
                            "commented_text_truncated": false,
                            "status": "open",
                            "author_user_id": "7c1e4d90-2a3b-4c5d-8e9f-0a1b2c3d4e5f",
                            "resolved_by_user_id": null,
                            "mentioned_user_ids": [
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                            ],
                            "replies": [
                              {
                                "id": "5a6b7c8d-9e0f-4a1b-2c3d-4e5f6a7b8c9d",
                                "comment": "<p>Business plan and above — I'll add a note.</p>",
                                "author_user_id": "9b2c3d4e-5f6a-4b8c-9d0e-1f2a3b4c5d6e",
                                "mentioned_user_ids": [],
                                "created_at": "2026-07-02T09:15:00Z",
                                "modified_at": "2026-07-02T09:15:00Z"
                              }
                            ],
                            "replies_count": 1,
                            "created_at": "2026-07-01T14:30:00Z",
                            "modified_at": "2026-07-02T09:15:00Z"
                          },
                          {
                            "id": "8d7c6b5a-4f3e-42d1-b0a9-8c7d6e5f4a3b",
                            "title": "Table needs a units column",
                            "comment": "<p>Add a units column to this table.</p>",
                            "commented_text": null,
                            "commented_text_truncated": false,
                            "status": "open",
                            "author_user_id": "9b2c3d4e-5f6a-4b8c-9d0e-1f2a3b4c5d6e",
                            "resolved_by_user_id": null,
                            "mentioned_user_ids": [],
                            "replies": [],
                            "replies_count": 0,
                            "created_at": "2026-06-28T11:05:00Z",
                            "modified_at": "2026-06-28T11:05:00Z"
                          }
                        ],
                        "next_cursor": null
                      },
                      "success": true,
                      "request_id": "0HNNG2FP7GHU5:00000003",
                      "errors": null,
                      "warnings": null
                    }
                  },
                  "Resolved comments, more pages available": {
                    "summary": "A full page of resolved threads. Pass `next_cursor` back as `cursor` to fetch the next (older) page. `total_count` is populated only on the first page.",
                    "value": {
                      "data": {
                        "total_count": 47,
                        "can_resolve_comments": false,
                        "comments": [
                          {
                            "id": "1a2b3c4d-5e6f-4708-9a0b-1c2d3e4f5a6b",
                            "title": "Typo in the second paragraph",
                            "comment": "<p>&quot;recieve&quot; should be &quot;receive&quot;.</p>",
                            "commented_text": "readers will recieve a notification",
                            "commented_text_truncated": false,
                            "status": "resolved",
                            "author_user_id": "7c1e4d90-2a3b-4c5d-8e9f-0a1b2c3d4e5f",
                            "resolved_by_user_id": "9b2c3d4e-5f6a-4b8c-9d0e-1f2a3b4c5d6e",
                            "mentioned_user_ids": [],
                            "replies": [],
                            "replies_count": 0,
                            "created_at": "2026-06-21T10:00:00Z",
                            "modified_at": "2026-06-22T16:45:00Z"
                          },
                          {
                            "id": "2b3c4d5e-6f7a-4819-8b0c-2d3e4f5a6b7c",
                            "title": null,
                            "comment": "<p>The screenshot is stale — replaced with the 12.6 UI.</p>",
                            "commented_text": "the Settings page",
                            "commented_text_truncated": false,
                            "status": "resolved",
                            "author_user_id": "9b2c3d4e-5f6a-4b8c-9d0e-1f2a3b4c5d6e",
                            "resolved_by_user_id": "7c1e4d90-2a3b-4c5d-8e9f-0a1b2c3d4e5f",
                            "mentioned_user_ids": [],
                            "replies": [],
                            "replies_count": 0,
                            "created_at": "2026-06-20T08:00:00Z",
                            "modified_at": "2026-06-20T08:00:00Z"
                          }
                        ],
                        "next_cursor": "MjAyNi0wNi0yMFQwODowMDowMC4wMDAwMDAwWnwyYjNjNGQ1ZS02ZjdhLTQ4MTktOGIwYy0yZDNlNGY1YTZiN2M="
                      },
                      "success": true,
                      "request_id": "0HNNG2FP7GHU5:00000007",
                      "errors": null,
                      "warnings": null
                    }
                  }
                }
              }
            },
            "links": {
              "createArticleCommentArticleComment": {
                "operationId": "createArticleCommentArticleComment",
                "description": "Starts a new thread on this article."
              },
              "updateArticleCommentArticleComment": {
                "operationId": "updateArticleCommentArticleComment",
                "description": "Resolves, reopens, or edits one of the threads returned here."
              }
            }
          },
          "401": {
            "description": "Authentication token is missing or invalid.",
            "headers": {
              "WWW-Authenticate": {
                "description": "Indicates the authentication scheme required. Returns `Bearer` with optional `error` and `error_description` parameters per RFC 6750.",
                "schema": {
                  "type": "string"
                }
              }
            },
            "content": {
              "application/problem+json": {
                "schema": {
                  "allOf": [
                    {
                      "$ref": "#/components/schemas/V3ProblemDetails"
                    },
                    {
                      "type": "object",
                      "properties": {
                        "type": {
                          "enum": [
                            "https://apidocs.document360.io/apidocs/errors/unauthorized"
                          ],
                          "type": "string",
                          "description": "RFC 7807 error type URI. Always `https://apidocs.document360.io/apidocs/errors/unauthorized` for 401 responses."
                        },
                        "status": {
                          "enum": [
                            401
                          ],
                          "type": "integer",
                          "description": "HTTP status code. Always `401` for this response.",
                          "format": "int32"
                        }
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                "examples": {
                  "Missing or invalid token": {
                    "summary": "Authentication token is missing or invalid.",
                    "value": {
                      "type": "https://apidocs.document360.io/apidocs/errors/unauthorized",
                      "title": "Unauthorized.",
                      "status": 401,
                      "detail": "The authentication token is missing or has expired.",
                      "instance": null,
                      "trace_id": "req_abc123def456",
                      "errors": [
                        {
                          "code": "UNAUTHORIZED",
                          "message": "Bearer token is missing or invalid.",
                          "field": null,
                          "details": null
                        }
                      ],
                      "warnings": null
                    }
                  }
                }
              }
            }
          },
          "403": {
            "description": "The role does not grant `articles.update`, or node-level access to the article is denied.",
            "content": {
              "application/problem+json": {
                "schema": {
                  "allOf": [
                    {
                      "$ref": "#/components/schemas/V3ProblemDetails"
                    },
                    {
                      "type": "object",
                      "properties": {
                        "type": {
                          "enum": [
                            "https://apidocs.document360.io/apidocs/errors/forbidden"
                          ],
                          "type": "string",
                          "description": "RFC 7807 error type URI. Always `https://apidocs.document360.io/apidocs/errors/forbidden` for 403 responses."
                        },
                        "status": {
                          "enum": [
                            403
                          ],
                          "type": "integer",
                          "description": "HTTP status code. Always `403` for this response.",
                          "format": "int32"
                        }
                      }
                    }
                  ]
                },
                "examples": {
                  "Insufficient permissions": {
                    "summary": "Insufficient permissions for this resource.",
                    "value": {
                      "type": "https://apidocs.document360.io/apidocs/errors/forbidden",
                      "title": "Forbidden.",
                      "status": 403,
                      "detail": "You do not have permission to perform this action.",
                      "instance": null,
                      "trace_id": "req_abc123def456",
                      "errors": [
                        {
                          "code": "FORBIDDEN",
                          "message": "Insufficient permissions for this project.",
                          "field": null,
                          "details": null
                        }
                      ],
                      "warnings": null
                    }
                  }
                }
              }
            }
          },
          "404": {
            "description": "Article not found.",
            "content": {
              "application/problem+json": {
                "schema": {
                  "allOf": [
                    {
                      "$ref": "#/components/schemas/V3ProblemDetails"
                    },
                    {
                      "type": "object",
                      "properties": {
                        "type": {
                          "enum": [
                            "https://apidocs.document360.io/apidocs/errors/resource-not-found"
                          ],
                          "type": "string",
                          "description": "RFC 7807 error type URI. Always `https://apidocs.document360.io/apidocs/errors/resource-not-found` for 404 responses."
                        },
                        "status": {
                          "enum": [
                            404
                          ],
                          "type": "integer",
                          "description": "HTTP status code. Always `404` for this response.",
                          "format": "int32"
                        }
                      }
                    }
                  ]
                },
                "examples": {
                  "Resource not found": {
                    "summary": "The requested resource was not found.",
                    "value": {
                      "type": "https://apidocs.document360.io/apidocs/errors/resource-not-found",
                      "title": "Not Found.",
                      "status": 404,
                      "detail": "The requested resource does not exist or has been deleted.",
                      "instance": null,
                      "trace_id": "req_abc123def456",
                      "errors": [
                        {
                          "code": "RESOURCE_NOT_FOUND",
                          "message": "The requested resource was not found.",
                          "field": null,
                          "details": null
                        }
                      ],
                      "warnings": null
                    }
                  }
                }
              }
            }
          },
          "422": {
            "description": "No user identity could be resolved (machine-to-machine token without an acting user), or `status` or `cursor` is not a valid value.",
            "content": {
              "application/problem+json": {
                "schema": {
                  "allOf": [
                    {
                      "$ref": "#/components/schemas/V3ProblemDetails"
                    },
                    {
                      "type": "object",
                      "properties": {
                        "type": {
                          "enum": [
                            "https://apidocs.document360.io/apidocs/errors/validation-error"
                          ],
                          "type": "string",
                          "description": "RFC 7807 error type URI. Always `https://apidocs.document360.io/apidocs/errors/validation-error` for 422 responses."
                        },
                        "status": {
                          "enum": [
                            422
                          ],
                          "type": "integer",
                          "description": "HTTP status code. Always `422` for this response.",
                          "format": "int32"
                        }
                      }
                    }
                  ]
                },
                "examples": {
                  "Validation failed": {
                    "summary": "The request body contains invalid data.",
                    "value": {
                      "type": "https://apidocs.document360.io/apidocs/errors/validation-error",
                      "title": "Unprocessable Entity.",
                      "status": 422,
                      "detail": "One or more fields failed validation.",
                      "instance": null,
                      "trace_id": "req_abc123def456",
                      "errors": [
                        {
                          "code": "VALIDATION_ERROR",
                          "message": "This field is required.",
                          "field": "title",
                          "details": null
                        }
                      ],
                      "warnings": null
                    }
                  }
                }
              }
            }
          },
          "429": {
            "description": "Rate limit exceeded. Retry after the duration specified in the Retry-After header.",
            "headers": {
              "Retry-After": {
                "description": "Number of seconds to wait before retrying the request. Use exponential backoff with jitter for optimal retry behavior.",
                "schema": {
                  "type": "integer",
                  "format": "int32"
                }
              },
              "X-RateLimit-Limit": {
                "description": "The maximum number of requests allowed in the current time window for this request's bucket. Read requests (GET/HEAD) and write requests (POST/PUT/PATCH/DELETE) have independent limits, applied per caller (API key or user) per project. Read limits are typically higher than write limits.",
                "schema": {
                  "type": "integer",
                  "format": "int32"
                }
              },
              "X-RateLimit-Remaining": {
                "description": "The number of requests remaining in the current time window. When this reaches 0, subsequent requests will receive a 429 response.",
                "schema": {
                  "type": "integer",
                  "format": "int32"
                }
              },
              "X-RateLimit-Reset": {
                "description": "The UTC epoch timestamp (in seconds) when the current rate limit window resets.",
                "schema": {
                  "type": "integer",
                  "format": "int64"
                }
              }
            },
            "content": {
              "application/problem+json": {
                "schema": {
                  "allOf": [
                    {
                      "$ref": "#/components/schemas/V3ProblemDetails"
                    },
                    {
                      "type": "object",
                      "properties": {
                        "type": {
                          "enum": [
                            "https://apidocs.document360.io/apidocs/errors/too-many-requests"
                          ],
                          "type": "string",
                          "description": "RFC 7807 error type URI. Always `https://apidocs.document360.io/apidocs/errors/too-many-requests` for 429 responses."
                        },
                        "status": {
                          "enum": [
                            429
                          ],
                          "type": "integer",
                          "description": "HTTP status code. Always `429` for this response.",
                          "format": "int32"
                        }
                      }
                    }
                  ]
                },
                "examples": {
                  "Rate limit exceeded": {
                    "summary": "Rate limit exceeded.",
                    "value": {
                      "type": "https://apidocs.document360.io/apidocs/errors/too-many-requests",
                      "title": "Too Many Requests.",
                      "status": 429,
                      "detail": "Rate limit exceeded. Retry after the duration specified in the Retry-After header.",
                      "instance": null,
                      "trace_id": "req_abc123def456",
                      "errors": [
                        {
                          "code": "TOO_MANY_REQUESTS",
                          "message": "Rate limit exceeded. Retry after the duration specified in the Retry-After header.",
                          "field": null,
                          "details": null
                        }
                      ],
                      "warnings": null
                    }
                  }
                }
              }
            }
          },
          "500": {
            "description": "An unexpected server error occurred.",
            "content": {
              "application/problem+json": {
                "schema": {
                  "allOf": [
                    {
                      "$ref": "#/components/schemas/V3ProblemDetails"
                    },
                    {
                      "type": "object",
                      "properties": {
                        "type": {
                          "enum": [
                            "https://apidocs.document360.io/apidocs/errors/internal-server-error"
                          ],
                          "type": "string",
                          "description": "RFC 7807 error type URI. Always `https://apidocs.document360.io/apidocs/errors/internal-server-error` for 500 responses."
                        },
                        "status": {
                          "enum": [
                            500
                          ],
                          "type": "integer",
                          "description": "HTTP status code. Always `500` for this response.",
                          "format": "int32"
                        }
                      }
                    }
                  ]
                },
                "examples": {
                  "Unexpected server error": {
                    "summary": "Unexpected server error.",
                    "value": {
                      "type": "https://apidocs.document360.io/apidocs/errors/internal-server-error",
                      "title": "Internal Server Error.",
                      "status": 500,
                      "detail": "An unexpected error occurred. Please try again or contact support.",
                      "instance": null,
                      "trace_id": "req_abc123def456",
                      "errors": [
                        {
                          "code": "INTERNAL_SERVER_ERROR",
                          "message": "An unexpected error occurred.",
                          "field": null,
                          "details": null
                        }
                      ],
                      "warnings": null
                    }
                  }
                }
              }
            }
          }
        },
        "security": [
          {
            "ApiKey": []
          },
          {
            "Bearer": [
              "customerApi"
            ]
          }
        ],
        "x-related-endpoints": [
          {
            "relationship": "related",
            "method": "GET",
            "path": "/v3/projects/{project_id}/articles/{article_id}",
            "operationId": "getArticleArticle",
            "description": "Reads the article content the comment markers live in. Each comment's `id` is the `data-comment-id` of its marker, so fetch with `content_mode=raw` to line them up."
          },
          {
            "relationship": "next",
            "method": "POST",
            "path": "/v3/projects/{project_id}/articles/{article_id}/comments",
            "operationId": "createArticleCommentArticleComment",
            "description": "Starts a new thread on this article."
          },
          {
            "relationship": "next",
            "method": "PATCH",
            "path": "/v3/projects/{project_id}/articles/{article_id}/comments/{comment_id}",
            "operationId": "updateArticleCommentArticleComment",
            "description": "Resolves, reopens, or edits one of the threads returned here."
          }
        ]
      }
    }
  },
  "components": {
    "parameters": {
      "ProjectId": {
        "name": "project_id",
        "in": "path",
        "description": "The unique identifier of the project. Retrieve project IDs from `GET /v3/projects`.",
        "required": true,
        "schema": {
          "type": "string",
          "format": "uuid",
          "example": "9a3b4c5d-6e7f-8a9b-0c1d-2e3f4a5b6c7d"
        }
      },
      "ArticleId": {
        "name": "article_id",
        "in": "path",
        "description": "The unique identifier of the article. Retrieve article IDs from `GET /v3/projects/{projectId}/articles`.",
        "required": true,
        "schema": {
          "type": "string",
          "format": "uuid",
          "example": "9a3b4c5d-6e7f-8a9b-0c1d-2e3f4a5b6c7d"
        }
      },
      "LangCode": {
        "name": "lang_code",
        "in": "query",
        "description": "ISO 639-1 language code (e.g., `en`, `fr`). Defaults to the project's primary language if omitted.",
        "schema": {
          "pattern": "^[a-z]{2}(-[A-Z]{2})?$",
          "type": "string",
          "format": "language-tag",
          "example": "en"
        }
      },
      "PageSize": {
        "name": "page_size",
        "in": "query",
        "description": "Number of results per page. Defaults to 25. Maximum 100.",
        "schema": {
          "maximum": 100,
          "minimum": 1,
          "type": "integer",
          "format": "int32",
          "default": 25
        }
      }
    },
    "schemas": {
      "CommentStatus": {
        "enum": [
          "open",
          "resolved",
          "reopened"
        ],
        "type": "string",
        "description": "Resolution status of an inline comment thread.",
        "x-enumNames": [
          "Open",
          "Resolved",
          "Reopened"
        ],
        "x-enum-varnames": [
          "Open",
          "Resolved",
          "Reopened"
        ],
        "x-ms-enum": {
          "name": "CommentStatus",
          "modelAsString": true
        }
      },
      "CommentListResponseApiResponse": {
        "required": [
          "data",
          "request_id",
          "success"
        ],
        "type": "object",
        "properties": {
          "data": {
            "allOf": [
              {
                "$ref": "#/components/schemas/CommentListResponse"
              }
            ],
            "description": "Response data payload."
          },
          "success": {
            "type": "boolean",
            "description": "Whether the API request was successful.",
            "readOnly": true
          },
          "request_id": {
            "minLength": 1,
            "type": "string",
            "description": "Unique identifier for request tracing and correlation.",
            "readOnly": true
          },
          "errors": {
            "type": "array",
            "items": {
              "$ref": "#/components/schemas/ApiError"
            },
            "description": "List of errors if the request failed.",
            "nullable": true
          },
          "warnings": {
            "type": "array",
            "items": {
              "$ref": "#/components/schemas/ApiWarning"
            },
            "description": "List of non-fatal warnings from the request.",
            "nullable": true
          }
        },
        "additionalProperties": false,
        "description": "Generic API response wrapper containing typed data."
      },
      "V3ProblemDetails": {
        "required": [
          "status",
          "title",
          "type"
        ],
        "type": "object",
        "properties": {
          "type": {
            "minLength": 1,
            "enum": [
              "https://apidocs.document360.io/apidocs/errors/bad-request",
              "https://apidocs.document360.io/apidocs/errors/unauthorized",
              "https://apidocs.document360.io/apidocs/errors/forbidden",
              "https://apidocs.document360.io/apidocs/errors/resource-not-found",
              "https://apidocs.document360.io/apidocs/errors/conflict",
              "https://apidocs.document360.io/apidocs/errors/validation-error",
              "https://apidocs.document360.io/apidocs/errors/too-many-requests",
              "https://apidocs.document360.io/apidocs/errors/internal-server-error"
            ],
            "type": "string",
            "description": "URI reference identifying the error type (links to documentation)."
          },
          "title": {
            "minLength": 1,
            "type": "string",
            "description": "Short human-readable summary of the error type."
          },
          "status": {
            "enum": [
              400,
              401,
              403,
              404,
              409,
              422,
              429,
              500
            ],
            "type": "integer",
            "description": "HTTP status code.",
            "format": "int32"
          },
          "detail": {
            "type": "string",
            "description": "Human-readable explanation specific to this occurrence.",
            "nullable": true
          },
          "instance": {
            "type": "string",
            "description": "URI of the request that generated the error.",
            "nullable": true
          },
          "trace_id": {
            "type": "string",
            "description": "Request trace identifier for correlation.",
            "nullable": true
          },
          "errors": {
            "type": "array",
            "items": {
              "$ref": "#/components/schemas/ApiError"
            },
            "description": "Structured list of specific errors (extension field).",
            "nullable": true
          },
          "warnings": {
            "type": "array",
            "items": {
              "$ref": "#/components/schemas/ApiWarning"
            },
            "description": "Non-fatal warnings (extension field).",
            "nullable": true
          }
        },
        "additionalProperties": false,
        "description": "RFC 7807 Problem Details response for V3 API errors.\r\nContent-Type: application/problem+json"
      },
      "CommentListResponse": {
        "required": [
          "can_resolve_comments"
        ],
        "type": "object",
        "properties": {
          "total_count": {
            "type": "integer",
            "description": "Total number of comments matching the requested status. Populated on the first page only (when no\r\n`cursor` is supplied) because counting is a full scan of the match; `null` on cursor\r\npages — distinct from `0`, which means the document genuinely has no comments in this status.",
            "format": "int32",
            "nullable": true
          },
          "can_resolve_comments": {
            "type": "boolean",
            "description": "Whether the acting user is permitted to change the resolution status of comments on this\r\narticle/category."
          },
          "comments": {
            "type": "array",
            "items": {
              "$ref": "#/components/schemas/CommentResponse"
            },
            "description": "The comments on this page, newest first.",
            "nullable": true
          },
          "next_cursor": {
            "type": "string",
            "description": "Opaque cursor for the next page: pass it back as `cursor` to fetch the following (older)\r\ncomments. `null` when this is the last page. Treat the value as opaque — its format is not\r\npart of the contract.",
            "nullable": true,
            "readOnly": true,
            "example": "MjAyNi0wNi0yMFQwODowMDowMC4wMDAwMDAwWnwyYjNjNGQ1ZS02ZjdhLTQ4MTktOGIwYy0yZDNlNGY1YTZiN2M="
          }
        },
        "additionalProperties": false,
        "description": "A page of inline comments for an article or category, in a single resolution status."
      },
      "ApiError": {
        "required": [
          "code",
          "message"
        ],
        "type": "object",
        "properties": {
          "code": {
            "minLength": 1,
            "enum": [
              "ARCHIVED_CONTENT_READ_ONLY",
              "ARCHIVE_ALREADY_ARCHIVED",
              "ARCHIVE_NOT_ARCHIVED",
              "BAD_REQUEST",
              "CONFLICT",
              "FEATURE_NOT_IN_LICENSE",
              "FORBIDDEN",
              "INTERNAL_SERVER_ERROR",
              "LICENSE_LIMIT_EXCEEDED",
              "OPERATION_FAILED",
              "PREMIUM_FEATURE_NOT_IN_LICENSE",
              "RESOURCE_NOT_FOUND",
              "TOO_MANY_REQUESTS",
              "UNAUTHORIZED",
              "UNRECOGNIZED_FIELD",
              "UNRECOGNIZED_FIELDS",
              "VALIDATION_ERROR"
            ],
            "type": "string",
            "description": "Machine-readable error code (e.g. VALIDATION_ERROR, RESOURCE_NOT_FOUND)."
          },
          "message": {
            "minLength": 1,
            "type": "string",
            "description": "Human-readable error message."
          },
          "field": {
            "type": "string",
            "description": "The request field that caused the error, if applicable.",
            "nullable": true
          },
          "details": {
            "type": "string",
            "description": "Additional context about the error.",
            "nullable": true
          }
        },
        "additionalProperties": false,
        "description": "Represents an error returned by the API."
      },
      "ApiWarning": {
        "required": [
          "code",
          "message"
        ],
        "type": "object",
        "properties": {
          "code": {
            "minLength": 1,
            "type": "string",
            "description": "Machine-readable warning code."
          },
          "message": {
            "minLength": 1,
            "type": "string",
            "description": "Human-readable warning message."
          }
        },
        "additionalProperties": false,
        "description": "Represents a non-fatal warning from the API."
      },
      "CommentResponse": {
        "required": [
          "commented_text_truncated",
          "created_at",
          "id",
          "modified_at",
          "replies_count",
          "status",
          "title"
        ],
        "type": "object",
        "properties": {
          "id": {
            "type": "string",
            "description": "Unique identifier of the comment thread, and the value carried by the comment's marker in the content\r\nas `data-comment-id`.\r\n\n\r\nDo not rely on finding it in a `content_mode=raw` response. Raw mode returns the DFM markdown\r\nrepresentation, and a `<mark>` marker does not survive the conversion into it — only the\r\nEditor 3.0 `<span>` form passes through. Use Document360.Customer.API.Models.V3.CommentResponse.CommentedText to learn what a\r\ncomment annotates rather than searching the content yourself.\r\n",
            "format": "uuid",
            "nullable": true,
            "readOnly": true,
            "example": "9a3b4c5d-6e7f-8a9b-0c1d-2e3f4a5b6c7d"
          },
          "title": {
            "type": "string",
            "description": "Optional title/summary of the comment thread.",
            "nullable": true
          },
          "comment": {
            "type": "string",
            "description": "The comment body (sanitized HTML).",
            "nullable": true
          },
          "commented_text": {
            "type": "string",
            "description": "The text in the document that this comment annotates — the content inside its highlight marker — as\r\nplain text.\r\n\n\r\nRead from the document's current content on every request rather than stored with the comment, so it\r\nalways reflects what the text says now. A consequence worth knowing: edit the annotated sentence and\r\nthis value changes; it is not a record of what the text said when the comment was written.\r\n\n`null` when the annotated text cannot be determined, which is an ordinary outcome and not an\r\nerror — the marker was removed (the thread is orphaned and now annotates nothing), the document is\r\nstored in a form this cannot read, or the comment predates the marker convention. Treat it as\r\n\"unknown\", and do not assume a comment with `null` here is invalid.\r\n\n\r\nA comment may annotate a selection spanning several paragraphs; those fragments are joined with single\r\nspaces, and runs of whitespace from the document's own markup are collapsed. Long selections are\r\ntruncated — see Document360.Customer.API.Models.V3.CommentResponse.CommentedTextTruncated.\r\n",
            "nullable": true,
            "readOnly": true,
            "example": "single sign-on"
          },
          "commented_text_truncated": {
            "type": "boolean",
            "description": "Whether Document360.Customer.API.Models.V3.CommentResponse.CommentedText was cut short because the annotated selection exceeded the\r\nresponse limit. When `true`, the value is a prefix of the real annotated text, not the whole of\r\nit — fetch the document content if the full span matters.",
            "readOnly": true
          },
          "status": {
            "enum": [
              "open",
              "resolved",
              "reopened"
            ],
            "type": "string",
            "allOf": [
              {
                "$ref": "#/components/schemas/CommentStatus"
              }
            ],
            "description": "Resolution status of the thread.",
            "x-enumNames": [
              "Open",
              "Resolved",
              "Reopened"
            ],
            "x-enum-varnames": [
              "Open",
              "Resolved",
              "Reopened"
            ],
            "x-ms-enum": {
              "name": "CommentStatus",
              "modelAsString": true
            }
          },
          "author_user_id": {
            "type": "string",
            "description": "Identifier of the team account that created the comment.",
            "nullable": true
          },
          "resolved_by_user_id": {
            "type": "string",
            "description": "Identifier of the team account that resolved the thread. `null` when still open.",
            "nullable": true
          },
          "mentioned_user_ids": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "Identifiers of team accounts @-mentioned in the comment.",
            "nullable": true
          },
          "replies": {
            "type": "array",
            "items": {
              "$ref": "#/components/schemas/CommentReplyResponse"
            },
            "description": "Replies on this comment thread.",
            "nullable": true
          },
          "replies_count": {
            "type": "integer",
            "description": "Total number of replies on the thread.",
            "format": "int32"
          },
          "created_at": {
            "type": "string",
            "description": "UTC timestamp when the comment was created.",
            "format": "date-time",
            "readOnly": true
          },
          "modified_at": {
            "type": "string",
            "description": "UTC timestamp when the comment was last modified.",
            "format": "date-time",
            "readOnly": true
          }
        },
        "additionalProperties": false,
        "description": "A single inline comment thread left on an article or category by an author/reviewer, together with its\r\nreplies. The `id` matches the `data-comment-id` attribute of the comment's marker in the\r\ncontent, so a consumer editing the content can re-associate a comment with the exact text it annotates.\r\n\n\r\nTwo marker forms exist, and both are valid — which one a document uses depends on the editor that wrote\r\nit: `<mark data-comment-id=\"…\">` for block (Advanced WYSIWYG) content, and\r\n`<span data-comment-id=\"…\" class=\"d360-comment …\">` for Editor 3.0. Match on the attribute\r\nrather than on the element name.\r\n"
      },
      "CommentReplyResponse": {
        "required": [
          "created_at",
          "id",
          "modified_at"
        ],
        "type": "object",
        "properties": {
          "id": {
            "type": "string",
            "description": "Unique identifier of the reply.",
            "format": "uuid",
            "nullable": true,
            "readOnly": true,
            "example": "9a3b4c5d-6e7f-8a9b-0c1d-2e3f4a5b6c7d"
          },
          "comment": {
            "type": "string",
            "description": "The reply body (sanitized HTML).",
            "nullable": true
          },
          "author_user_id": {
            "type": "string",
            "description": "Identifier of the team account that created the reply.",
            "nullable": true
          },
          "mentioned_user_ids": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "Identifiers of team accounts @-mentioned in the reply.",
            "nullable": true
          },
          "created_at": {
            "type": "string",
            "description": "UTC timestamp when the reply was created.",
            "format": "date-time",
            "readOnly": true
          },
          "modified_at": {
            "type": "string",
            "description": "UTC timestamp when the reply was last modified.",
            "format": "date-time",
            "readOnly": true
          }
        },
        "additionalProperties": false,
        "description": "A reply within an inline comment thread."
      }
    },
    "securitySchemes": {
      "ApiKey": {
        "type": "apiKey",
        "description": "API key for machine-to-machine integrations, webhooks, and CI/CD (recommended). This is a static, pre-shared secret - treat it as an opaque string and do not parse it; it is an API key, not an OAuth 2.0 access token. Create one in the portal under **Settings > Knowledge base portal > API keys** using the **Create API key** button - this is a different credential from the V1/V2 *API token*, which lives on its own screen and will not authenticate a V3 request. The plaintext key (format `d360_sk_...`) is shown only once, at creation. Send it in the `X-API-Key` header: `X-API-Key: d360_sk_...`. Each key carries a fixed portal role, content role, and content-access scope, supports an optional expiry, and can be disabled or deleted at any time from the portal.",
        "name": "X-API-Key",
        "in": "header"
      },
      "Bearer": {
        "type": "oauth2",
        "description": "All V3 endpoints require a Bearer token. Generate tokens in the Document360 portal under **Settings > API Tokens**. Tokens are project-scoped, require the `customerApi` scope, and do not expire by default. Tokens can be revoked at any time from the portal. Include the token in every request: `Authorization: Bearer <your-token>`. Alternatively, use the Authorize button below to sign in via OAuth2 Authorization Code flow with PKCE.",
        "flows": {
          "authorizationCode": {
            "authorizationUrl": "https://identity.document360.io/connect/authorize",
            "tokenUrl": "https://identity.document360.io/connect/token",
            "scopes": {
              "openid": "OpenID Connect",
              "profile": "User profile",
              "email": "User email",
              "customerApi": "Document360 Customer API"
            },
            "x-usePkce": {
              "disableManualConfiguration": true,
              "hideClientSecretInput": true
            }
          }
        },
        "x-d360-clientId": "apiHubWebClient"
      }
    }
  }
}
````