openapi: 3.0.1
info:
  title: Morph Apply Rerank API
  description: OpenAI-compatible API for Morph's fast code-editing models. The Apply model deterministically merges an LLM's update snippet into source code via the chat completions endpoint, alongside code embeddings and Cohere-compatible reranking. Authenticate with a Bearer API key.
  termsOfService: https://morphllm.com/terms
  contact:
    name: Morph Support
    url: https://morphllm.com/
  version: '3.0'
servers:
- url: https://api.morphllm.com/v1
security:
- bearerAuth: []
tags:
- name: Rerank
paths:
  /rerank:
    post:
      operationId: rerankDocuments
      tags:
      - Rerank
      summary: Rerank documents
      description: Cohere-client-compatible reranking that scores documents (or embedding IDs) against a query and returns them ordered by relevance.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RerankRequest'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RerankResponse'
components:
  schemas:
    RerankRequest:
      type: object
      required:
      - model
      - query
      properties:
        model:
          type: string
          example: morph-rerank-v3
        query:
          type: string
        documents:
          type: array
          items:
            type: string
          description: Documents to rerank. Provide this or embedding_ids.
        embedding_ids:
          type: array
          items:
            type: string
          description: Stored embedding IDs to rerank. Provide this or documents.
        top_n:
          type: integer
          description: Optional maximum number of results to return.
    RerankResponse:
      type: object
      properties:
        model:
          type: string
          example: morph-rerank-v3
        results:
          type: array
          items:
            type: object
            properties:
              index:
                type: integer
              document:
                type: string
              relevance_score:
                type: number
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Morph API key supplied as a Bearer token in the Authorization header.