openapi: 3.0.1
info:
  title: Chartmetric Albums Authentication API
  description: REST API for the Chartmetric music analytics and artist-intelligence platform. Provides programmatic access to artists, tracks, albums, playlists, and charts along with cross-platform streaming, social, and radio statistics across Spotify, Apple Music, YouTube, TikTok, Instagram, and other platforms, plus a unified search endpoint. Authentication uses a short-lived Bearer access token minted by exchanging a long-lived refresh token at POST /token.
  termsOfService: https://chartmetric.com/terms-of-service
  contact:
    name: Chartmetric Support
    email: hi@chartmetric.com
    url: https://apidocs.chartmetric.com/
  version: '1.0'
servers:
- url: https://api.chartmetric.com/api
  description: Chartmetric production API
security:
- bearerAuth: []
tags:
- name: Authentication
  description: Exchange a refresh token for a short-lived access token.
paths:
  /token:
    post:
      operationId: createToken
      tags:
      - Authentication
      summary: Mint an access token
      description: Exchange a long-lived refresh token for a short-lived (1 hour) access token. Reuse the access token across requests until it expires.
      security: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TokenRequest'
      responses:
        '200':
          description: An access token and its expiration.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TokenResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  responses:
    Unauthorized:
      description: Missing or invalid access token.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    TokenResponse:
      type: object
      properties:
        token:
          type: string
          description: Short-lived Bearer access token.
        expires_in:
          type: integer
          description: Token lifetime in seconds (3600).
          example: 3600
        scope:
          type: string
        refresh_token:
          type: string
    Error:
      type: object
      properties:
        error:
          type: string
          description: Human-readable error message.
        status:
          type: integer
          description: HTTP status code.
    TokenRequest:
      type: object
      required:
      - refreshtoken
      properties:
        refreshtoken:
          type: string
          description: Long-lived refresh token issued by Chartmetric.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Bearer access token obtained from POST /token.