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

# Retrieve a chapter

> > **Requires scope** `chapters:read` · **Minimum role** viewer

Returns one of the national's chapters with its description, the HQ-only label and its contact email (the same details the dashboard's Chapters page shows to `chapters:read`). Archived chapters are returned with `isActive: false`, as `PATCH /chapters/{chapterId}` returns them. 404 for a chapter that isn't a direct child of the token's organization, and for chapter organizations.

[Scopes and roles](https://docs.dueflow.co/api-reference/scopes)



## OpenAPI

````yaml /openapi.json get /v1/chapters/{chapterId}
openapi: 3.1.0
info:
  title: Dueflow API
  version: 1.0.0
  description: >-
    Read and write your organization's Dueflow data. Authenticate with a
    personal access token or an organization service token as a bearer
    credential; cookies are ignored. Every endpoint is also a tool on the
    Dueflow MCP server at https://api.dueflow.co/mcp, which accepts the same
    bearer tokens or an OAuth connection from ChatGPT and Claude.


    Timestamps in responses are RFC 3339, UTC, millisecond precision
    (`2026-01-31T17:04:05.123Z`). Timestamps you send are RFC 3339: send UTC
    (`Z`); some filters, such as `updatedSince`, also accept an offset.


    Responses may gain fields at any time; ignore the ones you don't know. Every
    failure answers with the `Error` envelope; branch on its `code`.
  termsOfService: https://dueflow.co/terms
  contact:
    name: Dueflow support
    email: hello@dueflow.co
    url: https://docs.dueflow.co
servers:
  - url: https://api.dueflow.co
    description: Production
security:
  - bearerAuth: []
paths:
  /v1/chapters/{chapterId}:
    get:
      tags:
        - Organization
      summary: Retrieve a chapter
      description: >-
        > **Requires scope** `chapters:read` · **Minimum role** viewer


        Returns one of the national's chapters with its description, the HQ-only
        label and its contact email (the same details the dashboard's Chapters
        page shows to `chapters:read`). Archived chapters are returned with
        `isActive: false`, as `PATCH /chapters/{chapterId}` returns them. 404
        for a chapter that isn't a direct child of the token's organization, and
        for chapter organizations.


        [Scopes and roles](https://docs.dueflow.co/api-reference/scopes)
      operationId: getChaptersByChapterId
      parameters:
        - name: chapterId
          in: path
          required: true
          schema:
            type: string
            minLength: 1
      responses:
        '200':
          description: Success
          headers:
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
            RateLimit-Limit:
              $ref: '#/components/headers/RateLimit-Limit'
            RateLimit-Remaining:
              $ref: '#/components/headers/RateLimit-Remaining'
            RateLimit-Reset:
              $ref: '#/components/headers/RateLimit-Reset'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChapterDetail'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
        default:
          $ref: '#/components/responses/UnexpectedError'
      security:
        - bearerAuth:
            - chapters:read
components:
  headers:
    X-Request-Id:
      description: >-
        Identifies the request; quote it to support. Also in the error body as
        `requestId`.
      schema:
        type: string
    RateLimit-Limit:
      description: Requests the token's budget for this kind of request allows per window.
      schema:
        type: integer
    RateLimit-Remaining:
      description: Requests left in the current window.
      schema:
        type: integer
    RateLimit-Reset:
      description: Seconds until the window resets.
      schema:
        type: integer
    Retry-After:
      description: Seconds to wait before retrying.
      schema:
        type: integer
  schemas:
    ChapterDetail:
      allOf:
        - $ref: '#/components/schemas/Organization'
        - type: object
          properties:
            description:
              type:
                - string
                - 'null'
            hqLabel:
              type:
                - string
                - 'null'
          required:
            - description
            - hqLabel
    Organization:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        type:
          type: string
          enum:
            - national
            - chapter
        parentId:
          type:
            - string
            - 'null'
        currency:
          type: string
        contactEmail:
          type:
            - string
            - 'null'
        website:
          type:
            - string
            - 'null'
        logoUrl:
          type:
            - string
            - 'null'
        isActive:
          type: boolean
        onboardedAt:
          type:
            - string
            - 'null'
          format: date-time
          description: >-
            Timestamp: RFC 3339, UTC, millisecond precision
            (`2026-01-31T17:04:05.123Z`).
        createdAt:
          type: string
          format: date-time
          description: >-
            Timestamp: RFC 3339, UTC, millisecond precision
            (`2026-01-31T17:04:05.123Z`).
        updatedAt:
          type: string
          format: date-time
          description: >-
            Timestamp: RFC 3339, UTC, millisecond precision
            (`2026-01-31T17:04:05.123Z`).
      required:
        - id
        - name
        - type
        - parentId
        - currency
        - contactEmail
        - website
        - logoUrl
        - isActive
        - onboardedAt
        - createdAt
        - updatedAt
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              description: >-
                A stable, machine-readable reason. One of `invalid_request`
                (400), `invalid_token` (401), `insufficient_scope` (403),
                `step_up_required` (403), `not_found` (404),
                `method_not_allowed` (405), `conflict` (409), `sync_expired`
                (410), `rate_limited` (429), `internal_error` (500),
                `provider_error` (502). New codes may be added; treat an unknown
                one by its HTTP status.
              type: string
            message:
              type: string
            param:
              type: string
            requiredScopes:
              type: array
              items:
                type: string
            requestId:
              type: string
            docsUrl:
              type: string
          required:
            - code
            - message
            - requestId
            - docsUrl
      required:
        - error
  responses:
    BadRequest:
      description: >-
        Invalid input: a parameter or body field fails validation (`param` names
        it), the body isn't JSON, or a business rule refused the request.
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
        RateLimit-Limit:
          $ref: '#/components/headers/RateLimit-Limit'
        RateLimit-Remaining:
          $ref: '#/components/headers/RateLimit-Remaining'
        RateLimit-Reset:
          $ref: '#/components/headers/RateLimit-Reset'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Missing, malformed, expired or revoked token.
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
        RateLimit-Limit:
          $ref: '#/components/headers/RateLimit-Limit'
        RateLimit-Remaining:
          $ref: '#/components/headers/RateLimit-Remaining'
        RateLimit-Reset:
          $ref: '#/components/headers/RateLimit-Reset'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Forbidden:
      description: The token lacks a required scope.
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
        RateLimit-Limit:
          $ref: '#/components/headers/RateLimit-Limit'
        RateLimit-Remaining:
          $ref: '#/components/headers/RateLimit-Remaining'
        RateLimit-Reset:
          $ref: '#/components/headers/RateLimit-Reset'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: No such resource, or the token's organization can't see it.
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
        RateLimit-Limit:
          $ref: '#/components/headers/RateLimit-Limit'
        RateLimit-Remaining:
          $ref: '#/components/headers/RateLimit-Remaining'
        RateLimit-Reset:
          $ref: '#/components/headers/RateLimit-Reset'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimited:
      description: Rate limited; see the `Retry-After` header.
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
        RateLimit-Limit:
          $ref: '#/components/headers/RateLimit-Limit'
        RateLimit-Remaining:
          $ref: '#/components/headers/RateLimit-Remaining'
        RateLimit-Reset:
          $ref: '#/components/headers/RateLimit-Reset'
        Retry-After:
          $ref: '#/components/headers/Retry-After'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    UnexpectedError:
      description: >-
        Any other failure, such as `internal_error` (500), as the `Error`
        envelope. A failure in front of the API (a gateway timeout, a request
        too large) may instead be plain text.
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
        RateLimit-Limit:
          $ref: '#/components/headers/RateLimit-Limit'
        RateLimit-Remaining:
          $ref: '#/components/headers/RateLimit-Remaining'
        RateLimit-Reset:
          $ref: '#/components/headers/RateLimit-Reset'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
        text/plain:
          schema:
            type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        A Dueflow access token: `dfp_` (personal) or `dfs_` (service).
        Permissions are the token's scopes intersected with the role ceiling,
        re-evaluated per request.

````

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