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

# List implementations

> Discover which Implementations exist for a Product. Filter by Repo + Branch name, and by Feature name.
      This is the orientation endpoint: when you know the current repo and branch, and need to identify the relevant Implementations that track it.



## OpenAPI

````yaml /openapi.json get /implementations
openapi: 3.0.0
info:
  description: >-
    Acai is an API for spec-driven development across git branches and product
    implementations. Specs store canonical requirement definitions, refs store
    where code on a branch appears to implement those requirements, and states
    store implementation-specific progress such as completed, blocked, or
    accepted. Agents typically discover an implementation, read canonical
    feature context, sync branch-derived changes, and then record status updates
    separately.
  title: Acai API
  version: 1.0.0
servers:
  - description: API v1
    url: http://localhost:4000/api/v1
    variables: {}
security:
  - bearerAuth: []
tags:
  - description: >-
      Endpoints for syncing branch-derived truth, resolving canonical feature
      context, discovering implementation work, and recording
      implementation-specific progress. The API keeps specs and refs separate
      from status updates so agents can read shared requirements, push observed
      code changes, and write progress without mixing those concerns.
    name: Actions
paths:
  /implementations:
    get:
      tags:
        - Actions
      summary: List implementations
      description: >-
        Discover which Implementations exist for a Product. Filter by Repo +
        Branch name, and by Feature name.
              This is the orientation endpoint: when you know the current repo and branch, and need to identify the relevant Implementations that track it.
      operationId: AcaiWeb.Api.ImplementationsController.index
      parameters:
        - description: Product name
          in: query
          name: product_name
          required: true
          schema:
            type: string
        - description: Exact repository URI
          in: query
          name: repo_uri
          required: false
          schema:
            type: string
        - description: Exact branch name
          in: query
          name: branch_name
          required: false
          schema:
            type: string
        - description: Filter to implementations that can resolve this feature
          in: query
          name: feature_name
          required: false
          schema:
            type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ImplementationsResponse'
          description: Implementation list
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Unauthorized
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Forbidden
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Validation error
      callbacks: {}
      security:
        - bearerAuth: []
components:
  schemas:
    ImplementationsResponse:
      properties:
        data:
          allOf:
            - properties:
                branch_name:
                  type: string
                implementations:
                  items:
                    allOf:
                      - properties:
                          implementation_id:
                            type: string
                          implementation_name:
                            type: string
                        required:
                          - implementation_name
                          - implementation_id
                        title: ImplementationEntry
                        type: object
                  type: array
                product_name:
                  type: string
                repo_uri:
                  type: string
              required:
                - product_name
                - implementations
              title: ImplementationsData
              type: object
      required:
        - data
      title: ImplementationsResponse
      type: object
    ErrorResponse:
      properties:
        errors:
          properties:
            detail:
              type: string
            status:
              type: string
          required:
            - detail
          type: object
      required:
        - errors
      title: ErrorResponse
      type: object
  securitySchemes:
    bearerAuth:
      bearerFormat: API token
      scheme: bearer
      type: http

````