openapi: 3.0.1
info:
  title: Freeplay HTTP Agents Search API
  description: The Freeplay HTTP API provides programmatic access to the Freeplay LLM experimentation, evaluation, and observability platform. It covers prompt template management, recording completions and sessions/traces, curating test cases and datasets, running batch test runs and evaluations, and recording customer and human feedback. The API root is your Freeplay instance URL plus /api/v2. For the standard cloud instance this is https://app.freeplay.ai/api/v2; private/self-hosted instances use a per-account subdomain such as https://{subdomain}.freeplay.ai/api/v2.
  termsOfService: https://freeplay.ai/terms
  contact:
    name: Freeplay Support
    url: https://docs.freeplay.ai/
  version: v2
servers:
- url: https://app.freeplay.ai/api/v2
  description: Freeplay Cloud (standard instance)
- url: https://{subdomain}.freeplay.ai/api/v2
  description: Private / self-hosted instance (per-account subdomain)
  variables:
    subdomain:
      default: app
      description: Your Freeplay account subdomain.
security:
- bearerAuth: []
tags:
- name: Search
  description: API-only search over sessions, traces, and completions.
paths:
  /projects/{project_id}/search/sessions:
    parameters:
    - $ref: '#/components/parameters/ProjectId'
    post:
      operationId: searchSessions
      tags:
      - Search
      summary: Search sessions with advanced filters.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SearchRequest'
      responses:
        '200':
          description: Matching sessions.
          content:
            application/json:
              schema:
                type: object
                properties:
                  sessions:
                    type: array
                    items:
                      $ref: '#/components/schemas/Session'
  /projects/{project_id}/search/traces:
    parameters:
    - $ref: '#/components/parameters/ProjectId'
    post:
      operationId: searchTraces
      tags:
      - Search
      summary: Search traces with advanced filters.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SearchRequest'
      responses:
        '200':
          description: Matching traces.
          content:
            application/json:
              schema:
                type: object
                properties:
                  traces:
                    type: array
                    items:
                      $ref: '#/components/schemas/Trace'
  /projects/{project_id}/search/completions:
    parameters:
    - $ref: '#/components/parameters/ProjectId'
    post:
      operationId: searchCompletions
      tags:
      - Search
      summary: Search completions with advanced filters.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SearchRequest'
      responses:
        '200':
          description: Matching completions.
          content:
            application/json:
              schema:
                type: object
                properties:
                  completions:
                    type: array
                    items:
                      $ref: '#/components/schemas/Completion'
components:
  parameters:
    ProjectId:
      name: project_id
      in: path
      required: true
      schema:
        type: string
        format: uuid
      description: The Freeplay project ID.
  schemas:
    Trace:
      type: object
      properties:
        trace_id:
          type: string
          format: uuid
        session_id:
          type: string
          format: uuid
        input:
          type: string
        output:
          type: string
    SearchRequest:
      type: object
      properties:
        query:
          type: string
        filters:
          type: object
          additionalProperties: true
        start_time:
          type: string
          format: date-time
        end_time:
          type: string
          format: date-time
        page:
          type: integer
        page_size:
          type: integer
    Usage:
      type: object
      properties:
        prompt_tokens:
          type: integer
        completion_tokens:
          type: integer
        total_tokens:
          type: integer
    Session:
      type: object
      properties:
        session_id:
          type: string
          format: uuid
        project_id:
          type: string
          format: uuid
        created_at:
          type: string
          format: date-time
        custom_metadata:
          type: object
          additionalProperties: true
    Completion:
      type: object
      properties:
        completion_id:
          type: string
          format: uuid
        session_id:
          type: string
          format: uuid
        trace_id:
          type: string
          format: uuid
        messages:
          type: array
          items:
            $ref: '#/components/schemas/Message'
        model:
          type: string
        usage:
          $ref: '#/components/schemas/Usage'
    Message:
      type: object
      properties:
        role:
          type: string
          enum:
          - system
          - user
          - assistant
          - tool
        content:
          type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Authenticate requests using your Freeplay API key as a Bearer token in the Authorization header. API keys are managed at https://app.freeplay.ai/settings/api-access.