openapi: 3.2.0
info:
  title: Ginnie Mae Content Block Content API
  version: 1.0.0
  summary: The public, unauthenticated JSON:API 1.0 content surface behind ginniemae.gov.
  description: Ginnie Mae serves its public website (www.ginniemae.gov) as an Angular single-page application against a Drupal 10 back end, and that back end exposes a **public, unauthenticated JSON:API 1.0 surface at `https://www.ginniemae.gov/api/v1/`** plus a set of Views REST exports and RFC 9264 linkset documents.
  contact:
    name: Ginnie Mae
    url: https://www.ginniemae.gov/contact-us
  license:
    name: U.S. Government Work (17 U.S.C. § 105)
    url: https://www.ginniemae.gov/site-policies/site-policies/disclaimer
servers:
- url: https://www.ginniemae.gov
  description: Production
tags:
- name: Block Content
paths:
  /api/v1/block_content/slideshow_block:
    get:
      operationId: listBlockContentSlideshowBlock
      summary: List block_content--slideshow_block resources
      description: Collection endpoint for the JSON:API resource type `block_content--slideshow_block`. Verified anonymously reachable (HTTP 200) on 2026-09-12.
      tags:
      - Block Content
      parameters:
      - name: page[limit]
        in: query
        required: false
        description: JSON:API page size. Verified live 2026-09-12.
        schema:
          type: integer
          minimum: 1
          maximum: 50
      - name: page[offset]
        in: query
        required: false
        description: JSON:API offset-based pagination cursor. Verified live 2026-09-12.
        schema:
          type: integer
          minimum: 0
      - name: sort
        in: query
        required: false
        description: Comma-separated JSON:API sort fields; a leading "-" reverses order (e.g. "-created"). Verified live 2026-09-12.
        schema:
          type: string
      - name: filter
        in: query
        required: false
        style: deepObject
        explode: true
        description: JSON:API filter. Shorthand filter[<field>]=<value> and the expanded filter[<name>][value]/[operator]/[path] form are both accepted; an unknown field returns HTTP 400. Verified live 2026-09-12.
        schema:
          type: object
          additionalProperties: true
      - name: include
        in: query
        required: false
        description: Comma-separated relationship paths to side-load into the "included" member.
        schema:
          type: string
      - name: fields
        in: query
        required: false
        style: deepObject
        explode: true
        description: 'Sparse fieldsets, keyed by resource type: fields[node--press_releases]=title. Verified live 2026-09-12.'
        schema:
          type: object
          additionalProperties:
            type: string
      responses:
        '200':
          description: A JSON:API document whose primary data is an array of resource objects.
          content:
            application/vnd.api+json:
              schema:
                $ref: '#/components/schemas/JsonApiCollectionDocument'
        '400':
          $ref: '#/components/responses/BadRequest'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
  /api/v1/block_content/slideshow_block/{uuid}:
    get:
      operationId: getBlockContentSlideshowBlock
      summary: Get one block_content--slideshow_block resource
      description: Individual-resource endpoint for the JSON:API resource type `block_content--slideshow_block`. `uuid` is the `id` member returned by the collection endpoint. A `resourceVersion` query value of `id:` or `rel:working-copy` selects a revision, as advertised in each resource object's own `links` member.
      tags:
      - Block Content
      parameters:
      - name: uuid
        in: path
        required: true
        description: Resource UUID.
        schema:
          type: string
          format: uuid
      - name: resourceVersion
        in: query
        required: false
        description: Revision selector, e.g. `id:23481` or `rel:working-copy`.
        schema:
          type: string
      - name: include
        in: query
        required: false
        description: Comma-separated relationship paths to side-load.
        schema:
          type: string
      responses:
        '200':
          description: A JSON:API document whose primary data is a single resource object.
          content:
            application/vnd.api+json:
              schema:
                $ref: '#/components/schemas/JsonApiItemDocument'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
  /api/v1/block_content/slideshow_sub:
    get:
      operationId: listBlockContentSlideshowSub
      summary: List block_content--slideshow_sub resources
      description: Collection endpoint for the JSON:API resource type `block_content--slideshow_sub`. Verified anonymously reachable (HTTP 200) on 2026-09-12.
      tags:
      - Block Content
      parameters:
      - name: page[limit]
        in: query
        required: false
        description: JSON:API page size. Verified live 2026-09-12.
        schema:
          type: integer
          minimum: 1
          maximum: 50
      - name: page[offset]
        in: query
        required: false
        description: JSON:API offset-based pagination cursor. Verified live 2026-09-12.
        schema:
          type: integer
          minimum: 0
      - name: sort
        in: query
        required: false
        description: Comma-separated JSON:API sort fields; a leading "-" reverses order (e.g. "-created"). Verified live 2026-09-12.
        schema:
          type: string
      - name: filter
        in: query
        required: false
        style: deepObject
        explode: true
        description: JSON:API filter. Shorthand filter[<field>]=<value> and the expanded filter[<name>][value]/[operator]/[path] form are both accepted; an unknown field returns HTTP 400. Verified live 2026-09-12.
        schema:
          type: object
          additionalProperties: true
      - name: include
        in: query
        required: false
        description: Comma-separated relationship paths to side-load into the "included" member.
        schema:
          type: string
      - name: fields
        in: query
        required: false
        style: deepObject
        explode: true
        description: 'Sparse fieldsets, keyed by resource type: fields[node--press_releases]=title. Verified live 2026-09-12.'
        schema:
          type: object
          additionalProperties:
            type: string
      responses:
        '200':
          description: A JSON:API document whose primary data is an array of resource objects.
          content:
            application/vnd.api+json:
              schema:
                $ref: '#/components/schemas/JsonApiCollectionDocument'
        '400':
          $ref: '#/components/responses/BadRequest'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
  /api/v1/block_content/slideshow_sub/{uuid}:
    get:
      operationId: getBlockContentSlideshowSub
      summary: Get one block_content--slideshow_sub resource
      description: Individual-resource endpoint for the JSON:API resource type `block_content--slideshow_sub`. `uuid` is the `id` member returned by the collection endpoint. A `resourceVersion` query value of `id:` or `rel:working-copy` selects a revision, as advertised in each resource object's own `links` member.
      tags:
      - Block Content
      parameters:
      - name: uuid
        in: path
        required: true
        description: Resource UUID.
        schema:
          type: string
          format: uuid
      - name: resourceVersion
        in: query
        required: false
        description: Revision selector, e.g. `id:23481` or `rel:working-copy`.
        schema:
          type: string
      - name: include
        in: query
        required: false
        description: Comma-separated relationship paths to side-load.
        schema:
          type: string
      responses:
        '200':
          description: A JSON:API document whose primary data is a single resource object.
          content:
            application/vnd.api+json:
              schema:
                $ref: '#/components/schemas/JsonApiItemDocument'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  responses:
    BadRequest:
      description: Malformed query — for example an unknown filter field. Returned as a JSON:API error document.
      content:
        application/vnd.api+json:
          schema:
            $ref: '#/components/schemas/JsonApiErrorDocument'
    Forbidden:
      description: The requester may not read this resource. Returned as a JSON:API error document.
      content:
        application/vnd.api+json:
          schema:
            $ref: '#/components/schemas/JsonApiErrorDocument'
    NotFound:
      description: 'No such resource. NOTE: an unknown resource TYPE under /api/v1 is answered by Drupal with an HTML 404 page rather than a JSON:API error document (observed 2026-09-12).'
      content:
        application/vnd.api+json:
          schema:
            $ref: '#/components/schemas/JsonApiErrorDocument'
        text/html:
          schema:
            type: string
  schemas:
    JsonApiError:
      type: object
      properties:
        title:
          type: string
          examples:
          - Bad Request
        status:
          type: string
          examples:
          - '400'
        detail:
          type: string
          examples:
          - Invalid nested filtering. The field `nope`, given in the path `nope`, does not exist.
        links:
          type: object
          properties:
            via:
              type: object
              properties:
                href:
                  type: string
                  format: uri
            info:
              type: object
              properties:
                href:
                  type: string
                  format: uri
    JsonApiErrorDocument:
      type: object
      required:
      - errors
      properties:
        jsonapi:
          $ref: '#/components/schemas/JsonApiVersion'
        errors:
          type: array
          items:
            $ref: '#/components/schemas/JsonApiError'
    JsonApiCollectionDocument:
      type: object
      properties:
        jsonapi:
          $ref: '#/components/schemas/JsonApiVersion'
        data:
          type: array
          items:
            $ref: '#/components/schemas/ResourceObject'
        included:
          type: array
          items:
            $ref: '#/components/schemas/ResourceObject'
        links:
          type: object
          additionalProperties: true
        meta:
          type: object
          additionalProperties: true
    ResourceObject:
      type: object
      required:
      - type
      - id
      properties:
        type:
          type: string
          examples:
          - node--press_releases
        id:
          type: string
          format: uuid
        links:
          type: object
          additionalProperties: true
        relationships:
          type: object
          additionalProperties: true
        attributes:
          type: object
          additionalProperties: true
      additionalProperties: true
      description: This site runs JSON:API Extras with field enhancement, so resource attributes are flattened onto the resource object rather than nested under an "attributes" member. Both shapes are permitted here because the flattened shape is what the live surface returns.
    JsonApiItemDocument:
      type: object
      properties:
        jsonapi:
          $ref: '#/components/schemas/JsonApiVersion'
        data:
          $ref: '#/components/schemas/ResourceObject'
        included:
          type: array
          items:
            $ref: '#/components/schemas/ResourceObject'
        links:
          type: object
          additionalProperties: true
    JsonApiVersion:
      type: object
      properties:
        version:
          type: string
          examples:
          - '1.0'
        meta:
          type: object
          additionalProperties: true
externalDocs:
  description: JSON:API 1.0 specification (the contract this surface conforms to)
  url: https://jsonapi.org/format/1.0/
x-generated-from:
  method: generated
  by: API Evangelist enrichment pipeline (local-v3)
  generated: '2026-09-12'
  sources:
  - https://www.ginniemae.gov/api/v1/ (JSON:API 1.0 entrypoint document, HTTP 200, 120 resource types)
  - https://www.ginniemae.gov/assets/config/config.prod.json (the SPA runtime configuration that names the API base)
  - https://bulk.ginniemae.gov/assets/config/config.prod.json
  - live anonymous GET probes of every path described, 2026-09-12
  not_published_by_provider: true
  verification: Every path carries a 2026-09-12 anonymous HTTP 200. Query parameters are either JSON:API 1.0 members verified against the live surface (page[limit], page[offset], sort, filter, fields) or exposed-filter names the endpoint declares about itself in its own response `filters` member.
  caveat: 'robots.txt on www.ginniemae.gov carries "Disallow: /api/" for crawlers. The surface is not authenticated and not rate-limited in any advertised way, but it is also not an advertised developer product.'