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

# Similar Artists

> Find similar or related artists for competitive analysis and collaboration discovery. Weight parameters are applied when the configured research source supports weighted matching; otherwise the endpoint returns the closest available related-artist set.



## OpenAPI

````yaml api-reference/openapi/research.json GET /api/research/similar
openapi: 3.1.0
info:
  title: Recoup API - Research
  description: >-
    API documentation for the Recoup platform - an AI agent platform for the
    music industry
  license:
    name: MIT
  version: 1.0.0
servers:
  - url: https://api.recoupable.dev
security: []
paths:
  /api/research/similar:
    get:
      description: >-
        Find similar or related artists for competitive analysis and
        collaboration discovery. Weight parameters are applied when the
        configured research source supports weighted matching; otherwise the
        endpoint returns the closest available related-artist set.
      parameters:
        - name: artist
          in: query
          required: false
          description: Artist name. Required unless `id` is provided.
          schema:
            type: string
        - name: audience
          in: query
          required: false
          description: Audience overlap weight.
          schema:
            type: string
            enum:
              - high
              - medium
              - low
            default: medium
        - name: genre
          in: query
          required: false
          description: Genre similarity weight.
          schema:
            type: string
            enum:
              - high
              - medium
              - low
            default: medium
        - name: mood
          in: query
          required: false
          description: Mood similarity weight.
          schema:
            type: string
            enum:
              - high
              - medium
              - low
            default: medium
        - name: musicality
          in: query
          required: false
          description: Musicality similarity weight.
          schema:
            type: string
            enum:
              - high
              - medium
              - low
            default: medium
        - name: limit
          in: query
          required: false
          schema:
            type: integer
            default: 10
        - name: id
          in: query
          required: false
          description: >-
            Provider artist ID returned by lookup or search. Required unless
            `artist` is provided.
          schema:
            type: string
            pattern: ^[A-Za-z0-9][A-Za-z0-9._:-]*$
            example: artist_123
      responses:
        '200':
          description: Similar artists with overlap scores
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResearchSimilarResponse'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResearchErrorResponse'
        '401':
          description: Authentication failed — invalid or missing API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResearchErrorResponse'
        '501':
          $ref: '#/components/responses/ResearchDataSourceUnsupported'
components:
  schemas:
    ResearchSimilarResponse:
      type: object
      description: Similar artists. Similarity is unweighted (no score/ranking fields).
      properties:
        status:
          type: string
          example: success
        artists:
          type: array
          items:
            $ref: '#/components/schemas/ResearchArtistRef'
    ResearchErrorResponse:
      type: object
      required:
        - status
        - error
      description: >-
        Error response returned by all research endpoints for validation
        failures (400) and authentication errors (401).
      properties:
        status:
          type: string
          enum:
            - error
          example: error
        error:
          type: string
          description: Human-readable error message describing what went wrong.
          example: 'Missing required parameter: artist'
    ResearchArtistRef:
      type: object
      description: Provider-neutral artist reference.
      properties:
        id:
          type: string
          description: Provider-neutral artist ID.
          example: wjcgfd9i
        name:
          type: string
          example: Drake
        avatar:
          type: string
          description: Artist image URL.
          nullable: true
        site_url:
          type: string
          description: Artist page URL.
          nullable: true
      additionalProperties: true
  responses:
    ResearchDataSourceUnsupported:
      description: >-
        The configured research data source does not support this endpoint or
        data shape.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ResearchErrorResponse'
          example:
            status: error
            error: Request failed with status 501

````