ACRCloud Identification API

openapi: 3.0.1
info:
  title: ACRCloud API
  description: >-
    Specification of the ACRCloud automatic content recognition (ACR) APIs. The
    Identification API recognizes music, custom audio, live channels, and humming
    from a short audio sample or a precomputed fingerprint using HMAC-SHA1 signed
    requests. The Console API (api-v2.acrcloud.com) manages buckets, audio files,
    file-scanning containers, and broadcast-monitoring projects using bearer-token
    access tokens, and the external Metadata API enriches tracks with third-party
    music metadata.
  termsOfService: https://www.acrcloud.com/terms/
  contact:
    name: ACRCloud Support
    email: support@acrcloud.com
    url: https://www.acrcloud.com
  version: '1.0'
servers:
  - url: https://identify-eu-west-1.acrcloud.com
    description: Identification API (EU West region; other regions use identify-{region}.acrcloud.com)
  - url: https://api-v2.acrcloud.com
    description: Console API and bucket/file/project management
  - url: https://eu-api-v2.acrcloud.com
    description: External Metadata API (region-specific host)
tags:
  - name: Identification
    description: Recognize music, custom audio, and humming from a sample or fingerprint.
  - name: Buckets
    description: Manage custom recognition buckets.
  - name: Audio Files
    description: Upload and manage audio files and fingerprints within a bucket.
  - name: File Scanning
    description: Manage file-scanning containers that detect content from buckets.
  - name: Broadcast Monitoring
    description: Manage broadcast-database monitoring projects and result callbacks.
  - name: Metadata
    description: Look up enriched third-party music metadata.
paths:
  /v1/identify:
    post:
      operationId: identify
      tags:
        - Identification
      summary: Identify music or custom audio from a sample or fingerprint.
      description: >-
        Submits a short audio sample (recommended under 15 seconds) or a
        precomputed fingerprint and returns matched track metadata. The request
        is authenticated with an HMAC-SHA1 signature computed from the access
        secret over a string built from the HTTP method, endpoint URI, access
        key, data type, signature version, and timestamp joined by newlines.
      security:
        - acrSignature: []
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/IdentifyRequest'
      responses:
        '200':
          description: Identification result (a status code of 0 indicates success).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IdentifyResponse'
  /api/buckets:
    get:
      operationId: listBuckets
      tags:
        - Buckets
      summary: List buckets.
      security:
        - bearerAuth: []
      parameters:
        - name: region
          in: query
          schema:
            type: string
        - name: type
          in: query
          schema:
            type: string
        - name: page
          in: query
          schema:
            type: integer
        - name: per_page
          in: query
          schema:
            type: integer
      responses:
        '200':
          description: Paginated list of buckets.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BucketList'
    post:
      operationId: createBucket
      tags:
        - Buckets
      summary: Create a bucket.
      security:
        - bearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BucketCreate'
      responses:
        '201':
          description: The created bucket.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Bucket'
  /api/buckets/{id}:
    parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getBucket
      tags:
        - Buckets
      summary: Retrieve a bucket.
      security:
        - bearerAuth: []
      responses:
        '200':
          description: The requested bucket.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Bucket'
    put:
      operationId: updateBucket
      tags:
        - Buckets
      summary: Update a bucket.
      security:
        - bearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BucketCreate'
      responses:
        '200':
          description: The updated bucket.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Bucket'
    delete:
      operationId: deleteBucket
      tags:
        - Buckets
      summary: Delete a bucket (the bucket must be emptied first).
      security:
        - bearerAuth: []
      responses:
        '204':
          description: Bucket deleted.
  /api/buckets/{bucket_id}/files:
    parameters:
      - name: bucket_id
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: listAudioFiles
      tags:
        - Audio Files
      summary: List audio files in a bucket.
      security:
        - bearerAuth: []
      parameters:
        - name: search
          in: query
          schema:
            type: string
        - name: state
          in: query
          schema:
            type: integer
        - name: page
          in: query
          schema:
            type: integer
        - name: per_page
          in: query
          schema:
            type: integer
      responses:
        '200':
          description: Paginated list of audio files.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AudioFileList'
    post:
      operationId: uploadAudioFile
      tags:
        - Audio Files
      summary: Upload an audio file or fingerprint to a bucket.
      security:
        - bearerAuth: []
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/AudioFileUpload'
      responses:
        '201':
          description: The created audio file record.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AudioFile'
  /api/buckets/{bucket_id}/files/{ids}:
    parameters:
      - name: bucket_id
        in: path
        required: true
        schema:
          type: string
      - name: ids
        in: path
        required: true
        description: Comma-separated file IDs or ACR IDs.
        schema:
          type: string
    get:
      operationId: getAudioFiles
      tags:
        - Audio Files
      summary: Retrieve one or more audio files by ID or ACR ID.
      security:
        - bearerAuth: []
      responses:
        '200':
          description: Matching audio file records.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/AudioFile'
    delete:
      operationId: deleteAudioFiles
      tags:
        - Audio Files
      summary: Delete one or more audio files.
      security:
        - bearerAuth: []
      responses:
        '204':
          description: Files deleted.
  /api/fs-containers:
    get:
      operationId: listFileScanningContainers
      tags:
        - File Scanning
      summary: List file-scanning containers.
      security:
        - bearerAuth: []
      parameters:
        - name: region
          in: query
          schema:
            type: string
        - name: name
          in: query
          schema:
            type: string
      responses:
        '200':
          description: List of file-scanning containers.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/FsContainer'
    post:
      operationId: createFileScanningContainer
      tags:
        - File Scanning
      summary: Create a file-scanning container.
      security:
        - bearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FsContainerCreate'
      responses:
        '201':
          description: The created container.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FsContainer'
  /api/fs-containers/{container_id}:
    parameters:
      - name: container_id
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getFileScanningContainer
      tags:
        - File Scanning
      summary: Retrieve a file-scanning container.
      security:
        - bearerAuth: []
      responses:
        '200':
          description: The requested container.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FsContainer'
    put:
      operationId: updateFileScanningContainer
      tags:
        - File Scanning
      summary: Update a file-scanning container.
      security:
        - bearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FsContainerCreate'
      responses:
        '200':
          description: The updated container.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FsContainer'
    delete:
      operationId: deleteFileScanningContainer
      tags:
        - File Scanning
      summary: Delete a file-scanning container.
      security:
        - bearerAuth: []
      responses:
        '204':
          description: Container deleted.
  /api/bm-bd-projects:
    get:
      operationId: listBroadcastProjects
      tags:
        - Broadcast Monitoring
      summary: List broadcast-database monitoring projects.
      security:
        - bearerAuth: []
      parameters:
        - name: region
          in: query
          schema:
            type: string
      responses:
        '200':
          description: List of broadcast-monitoring projects.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/BmProject'
    post:
      operationId: createBroadcastProject
      tags:
        - Broadcast Monitoring
      summary: Create a broadcast-database monitoring project.
      security:
        - bearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BmProjectCreate'
      responses:
        '201':
          description: The created project.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BmProject'
  /api/bm-bd-projects/{id}:
    parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
    put:
      operationId: updateBroadcastProject
      tags:
        - Broadcast Monitoring
      summary: Update a broadcast-monitoring project.
      security:
        - bearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BmProjectCreate'
      responses:
        '200':
          description: The updated project.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BmProject'
    delete:
      operationId: deleteBroadcastProject
      tags:
        - Broadcast Monitoring
      summary: Delete a broadcast-monitoring project.
      security:
        - bearerAuth: []
      responses:
        '204':
          description: Project deleted.
  /api/bm-bd-projects/{id}/result-callback:
    parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
    post:
      operationId: setResultCallback
      tags:
        - Broadcast Monitoring
      summary: Set the results callback URL for a broadcast-monitoring project.
      security:
        - bearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                result_callback_url:
                  type: string
                  format: uri
                result_callback_send_noresult:
                  type: boolean
                result_callback_result_type:
                  type: integer
                  description: 0 = RealTime, 1 = Delay.
      responses:
        '200':
          description: Callback configured.
  /api/external-metadata/tracks:
    get:
      operationId: getExternalMetadataTracks
      tags:
        - Metadata
      summary: Look up enriched track metadata.
      description: >-
        Returns enriched music metadata for a track resolved by ISRC, ACR ID,
        source URL, or free-text query, including platform-specific external IDs
        and links across Spotify, Deezer, YouTube, and Apple Music.
      security:
        - bearerAuth: []
      parameters:
        - name: isrc
          in: query
          schema:
            type: string
        - name: acr_id
          in: query
          schema:
            type: string
        - name: source_url
          in: query
          schema:
            type: string
        - name: query
          in: query
          schema:
            type: string
        - name: platforms
          in: query
          description: Comma-separated platforms (max 5). Default spotify,deezer,youtube,applemusic.
          schema:
            type: string
        - name: include_works
          in: query
          schema:
            type: integer
        - name: format
          in: query
          schema:
            type: string
            enum: [text, json]
            default: text
      responses:
        '200':
          description: Track metadata.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MetadataTrack'
components:
  securitySchemes:
    acrSignature:
      type: apiKey
      in: query
      name: signature
      description: >-
        HMAC-SHA1 request signing for the Identification API. The client sends
        access_key, timestamp, signature_version=1, data_type, and a Base64
        signature. The signature is HMAC-SHA1 of the string "POST\n/v1/identify\n
        {access_key}\n{data_type}\n1\n{timestamp}" keyed with the access_secret.
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Console API access token created in the ACRCloud console developer
        settings and sent as "Authorization: Bearer {token}".
  schemas:
    IdentifyRequest:
      type: object
      required:
        - access_key
        - data_type
        - signature_version
        - signature
        - timestamp
      properties:
        sample:
          type: string
          format: binary
          description: Audio or fingerprint payload (under 5MB).
        sample_bytes:
          type: integer
          description: Size of the sample in bytes.
        access_key:
          type: string
          description: Project access key.
        data_type:
          type: string
          enum: [audio, fingerprint]
        signature_version:
          type: string
          enum: ['1']
        signature:
          type: string
          description: Base64-encoded HMAC-SHA1 signature.
        timestamp:
          type: string
          description: Unix epoch timestamp.
    IdentifyResponse:
      type: object
      properties:
        status:
          type: object
          properties:
            code:
              type: integer
              description: 0 indicates success.
            msg:
              type: string
            version:
              type: string
        result_type:
          type: integer
        metadata:
          type: object
          properties:
            timestamp_utc:
              type: string
            music:
              type: array
              items:
                $ref: '#/components/schemas/MusicMatch'
            custom_files:
              type: array
              items:
                type: object
    MusicMatch:
      type: object
      properties:
        title:
          type: string
        acrid:
          type: string
        isrc:
          type: string
        duration_ms:
          type: integer
        score:
          type: integer
        release_date:
          type: string
        artists:
          type: array
          items:
            type: object
            properties:
              name:
                type: string
        album:
          type: object
          properties:
            name:
              type: string
        external_ids:
          type: object
          properties:
            isrc:
              type: string
            iswc:
              type: string
            upc:
              type: string
        genres:
          type: array
          items:
            type: object
            properties:
              name:
                type: string
    Bucket:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        region:
          type: string
        type:
          type: string
        net_type:
          type: integer
        state:
          type: integer
        created_at:
          type: string
        updated_at:
          type: string
    BucketCreate:
      type: object
      required:
        - name
        - region
      properties:
        name:
          type: string
        region:
          type: string
        type:
          type: string
        net_type:
          type: integer
        labels:
          type: array
          items:
            type: string
        metadata_template:
          type: object
    BucketList:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Bucket'
        meta:
          $ref: '#/components/schemas/PageMeta'
    AudioFile:
      type: object
      properties:
        id:
          type: string
        acr_id:
          type: string
        bucket_id:
          type: string
        title:
          type: string
        state:
          type: integer
        duration:
          type: number
        user_defined:
          type: object
        created_at:
          type: string
        updated_at:
          type: string
    AudioFileUpload:
      type: object
      required:
        - data_type
      properties:
        file:
          type: string
          format: binary
        title:
          type: string
        data_type:
          type: string
          enum: [audio, fingerprint, audio_url, acrid]
        user_defined:
          type: string
          description: JSON-encoded user-defined metadata.
    AudioFileList:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/AudioFile'
        meta:
          $ref: '#/components/schemas/PageMeta'
    FsContainer:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        region:
          type: string
        audio_type:
          type: string
        state:
          type: integer
        created_at:
          type: string
    FsContainerCreate:
      type: object
      required:
        - name
        - region
        - buckets
      properties:
        name:
          type: string
        region:
          type: string
        audio_type:
          type: string
          description: linein (clean) or recorded/noisy audio handling.
        buckets:
          type: array
          items:
            type: string
        engine:
          type: object
        policy:
          type: object
        callback_url:
          type: string
          format: uri
        music_detection:
          type: integer
        ai_detection:
          type: integer
    BmProject:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        region:
          type: string
        state:
          type: integer
        created_at:
          type: string
    BmProjectCreate:
      type: object
      required:
        - name
        - region
      properties:
        name:
          type: string
        region:
          type: string
          description: e.g. eu-west-1, us-west-2, ap-southeast-1.
        buckets:
          type: array
          items:
            type: string
    MetadataTrack:
      type: object
      properties:
        name:
          type: string
        isrc:
          type: string
        duration_ms:
          type: integer
        release_date:
          type: string
        artists:
          type: array
          items:
            type: object
            properties:
              name:
                type: string
        album:
          type: object
          properties:
            name:
              type: string
            upc:
              type: string
            label:
              type: string
        genres:
          type: array
          items:
            type: string
        external_metadata:
          type: object
          description: Platform-specific IDs, links, and preview URLs.
        works:
          type: array
          items:
            type: object
            description: Composition details and contributors (when include_works=1).
    PageMeta:
      type: object
      properties:
        page:
          type: integer
        per_page:
          type: integer
        total:
          type: integer