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OpenAPI Specification

openapi: 3.2.0
info:
  title: CanonicAI — public Answers + feed Canons API
  version: 1.1.0
  description: Free, read-only, machine-readable answers and domain canons from the CanonicAI corpus-to-dataset engine, each with citations into the engine's own documentation. Served as static JSON and via hosted MCP/REST at /api/mcp, /api/v1/answers, and /api/v1/canons. See /.well-known/mcp.json.
  contact:
    name: CanonicAI
    url: https://canonicai.com
servers:
- url: https://canonicai.com
tags:
- name: Canons
paths:
  /api/v1/canons:
    get:
      operationId: listCanonsApi
      summary: List canon summaries (REST twin of list_canons)
      parameters:
      - name: limit
        in: query
        schema:
          type: integer
          minimum: 0
      - name: offset
        in: query
        schema:
          type: integer
          minimum: 0
      responses:
        '200':
          description: Canon summary list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CanonListResponse'
      tags:
      - Canons
  /api/v1/canons/search:
    get:
      operationId: searchConstructsApi
      summary: Search constructs across canons (REST twin of search_constructs)
      parameters:
      - name: q
        in: query
        required: true
        schema:
          type: string
      - name: canon
        in: query
        schema:
          type: string
      - name: limit
        in: query
        schema:
          type: integer
          minimum: 0
      responses:
        '200':
          description: Ranked construct matches
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConstructSearchResponse'
      tags:
      - Canons
  /api/v1/canons/{slug}:
    get:
      operationId: getCanonApi
      summary: One canon-v1 record by slug (REST twin of get_canon)
      parameters:
      - name: slug
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Canon-v1 record with url
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CanonRecord'
        '404':
          description: Unknown slug
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NotFoundError'
      tags:
      - Canons
components:
  schemas:
    CanonRecord:
      type: object
      description: Canon-v1 record
      required:
      - slug
      - constructs
      - url
      properties:
        slug:
          type: string
        action_statement:
          type: string
        constructs:
          type: array
          items:
            type: object
        relationships:
          type: array
          items:
            type: object
        open_divergences:
          type: array
          items:
            type: object
        coverage:
          type: object
        provenance:
          type: object
        source_works:
          type: array
          items:
            type: object
        guide_url:
          type: string
        url:
          type: string
          format: uri
    ConstructMatch:
      type: object
      required:
      - score
      - canon
      - name
      - url
      properties:
        score:
          type: integer
        canon:
          type: string
        name:
          type: string
        definition:
          type: string
        url:
          type: string
          format: uri
    CanonSummary:
      type: object
      required:
      - slug
      - action_statement
      - n_constructs
      - n_source_works
      - url
      - jsonUrl
      properties:
        slug:
          type: string
        action_statement:
          type: string
        n_constructs:
          type: integer
        n_source_works:
          type: integer
        url:
          type: string
          format: uri
        jsonUrl:
          type: string
          format: uri
        date_modified:
          type: string
    ConstructSearchResponse:
      type: object
      required:
      - query
      - count
      - matches
      properties:
        query:
          type: string
        count:
          type: integer
        matches:
          type: array
          items:
            $ref: '#/components/schemas/ConstructMatch'
    NotFoundError:
      type: object
      required:
      - code
      - slug
      - message
      properties:
        code:
          type: string
          enum:
          - not_found
        slug:
          type: string
        message:
          type: string
        validSlugCount:
          type: integer
    CanonListResponse:
      type: object
      required:
      - count
      - canons
      properties:
        count:
          type: integer
        canons:
          type: array
          items:
            $ref: '#/components/schemas/CanonSummary'