openapi: 3.0.1
info:
  title: Contextual AI Platform Agents LMUnit API
  description: REST API for the Contextual AI enterprise RAG platform. Provides agents (create / query grounded RAG agents), datastores and documents (ingest and manage the knowledge corpus), and standalone component APIs - Generate (grounded generation with the GLM), Rerank (instruction-following reranker), Parse (document parsing into AI-ready markdown), and LMUnit (natural-language unit-test evaluation). All endpoints authenticate with a Bearer API key.
  termsOfService: https://contextual.ai/terms-of-service/
  contact:
    name: Contextual AI Support
    url: https://docs.contextual.ai
    email: support@contextual.ai
  version: '1.0'
servers:
- url: https://api.contextual.ai/v1
  description: Contextual AI production API
security:
- bearerAuth: []
tags:
- name: LMUnit
  description: Evaluate model responses with natural-language unit tests.
paths:
  /lmunit:
    post:
      operationId: lmunit
      tags:
      - LMUnit
      summary: LMUnit
      description: Evaluate a model response against a natural-language unit test. Total input is limited to 7000 tokens. Returns a score from 1 (strongly fails) to 5 (strongly passes).
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LMUnitRequest'
      responses:
        '200':
          description: Evaluation score.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LMUnitResponse'
        '422':
          $ref: '#/components/responses/ValidationError'
components:
  schemas:
    HTTPValidationError:
      type: object
      properties:
        detail:
          type: array
          items:
            $ref: '#/components/schemas/ValidationErrorDetail'
    LMUnitRequest:
      type: object
      required:
      - query
      - response
      - unit_test
      properties:
        query:
          type: string
          description: The prompt to which the model responds.
        response:
          type: string
          description: The model response to evaluate.
        unit_test:
          type: string
          description: Natural-language statement to evaluate the response against.
    ValidationErrorDetail:
      type: object
      properties:
        loc:
          type: array
          items:
            oneOf:
            - type: string
            - type: integer
        msg:
          type: string
        type:
          type: string
    LMUnitResponse:
      type: object
      properties:
        score:
          type: number
          minimum: 1
          maximum: 5
          description: Continuous score from 1 (strongly fails) to 5 (strongly passes).
  responses:
    ValidationError:
      description: Validation error.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/HTTPValidationError'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Contextual AI API key supplied as a Bearer token.