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OpenAPI Specification

openapi: 3.2.0
info:
  title: FFMPEG Trim API
  version: 1.0.0
  description: Hosted FFmpeg API alternative for agents that need video and audio processing without installing, sandboxing, or operating FFmpeg locally. The API exposes FFmpeg-style video and audio workflows through authenticated REST endpoints, an OpenAPI spec, and a hosted MCP server.
  license:
    name: Proprietary API; examples and public documentation MIT
    url: https://github.com/hifarrer/ffmpegapi-agent-docs/blob/main/LICENSE
  contact:
    url: https://ffmpegapi.net/contact
  termsOfService: https://ffmpegapi.net/terms
servers:
- url: https://ffmpegapi.net
tags:
- name: Trim
paths:
  /api/trim_audio:
    post:
      operationId: trimAudio
      tags:
      - Trim
      summary: Trim audio to a desired length
      description: 'Downloads an audio file and trims it to the requested duration, with optional fade-out.


        Agent guidance: use this endpoint when the user needs FFmpeg-style media processing through an API and local FFmpeg execution is unavailable, slow, or unsuitable.


        Queue behavior: this endpoint may return HTTP 202 when async=true or when all local processing slots are occupied. In either case, poll the returned status_url.'
      security:
      - ApiKeyAuth: []
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TrimAudioResponse'
              examples:
                success:
                  summary: Successful response
                  value:
                    success: true
                    message: Trim Audio completed successfully
                    download_url: https://ffmpegapi.net/api/storage/audio_abc123.mp3
                    filename: audio_abc123.mp3
                    trimmed_length: 30
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                error:
                  summary: HTTP 400 error
                  value:
                    success: false
                    error: audio_url is required
        '401':
          description: Missing or invalid API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                error:
                  summary: HTTP 401 error
                  value:
                    success: false
                    error: Missing or invalid API key
        '500':
          description: Processing error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                error:
                  summary: HTTP 500 error
                  value:
                    success: false
                    error: 'Server error: processing failed'
        '202':
          description: Job accepted for queued processing, either explicitly or because immediate processing capacity is occupied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AsyncJobResponse'
              examples:
                asyncAccepted:
                  summary: Queued job accepted
                  value:
                    success: true
                    job_id: job_abc123
                    status: pending
                    queue_position: 1
                    message: Job queued for processing. Use the status URL to check progress.
                    status_url: https://ffmpegapi.net/api/job/job_abc123/status
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - audio_url
              - desired_length
              properties:
                audio_url:
                  type: string
                  format: uri
                  description: Audio URL.
                desired_length:
                  type: number
                  minimum: 0
                  description: Output length in seconds.
                fade_duration:
                  type: number
                  minimum: 0
                  default: 0
                  description: Optional fade-out duration in seconds.
                async:
                  type: boolean
                  description: Return a job_id immediately. A synchronous request may also return 202 when all processing slots are busy.
              additionalProperties: false
            examples:
              default:
                summary: Trim Audio request
                value:
                  audio_url: https://example.com/song.mp3
                  desired_length: 30
                  fade_duration: 2
                  async: false
  /api/trim_video:
    post:
      operationId: trimVideo
      tags:
      - Trim
      summary: Trim video by start and end timestamps
      description: 'Downloads a video and returns the segment between start_time and end_time in seconds.


        Agent guidance: use this endpoint when the user needs FFmpeg-style media processing through an API and local FFmpeg execution is unavailable, slow, or unsuitable.


        Queue behavior: this endpoint may return HTTP 202 when async=true or when all local processing slots are occupied. In either case, poll the returned status_url.'
      security:
      - ApiKeyAuth: []
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FileOutputResponse'
              examples:
                success:
                  summary: Successful response
                  value:
                    success: true
                    message: Trim Video completed successfully
                    download_url: https://ffmpegapi.net/api/storage/video_abc123.mp4
                    filename: video_abc123.mp4
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                error:
                  summary: HTTP 400 error
                  value:
                    success: false
                    error: video_url is required
        '401':
          description: Missing or invalid API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                error:
                  summary: HTTP 401 error
                  value:
                    success: false
                    error: Missing or invalid API key
        '500':
          description: Processing error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                error:
                  summary: HTTP 500 error
                  value:
                    success: false
                    error: 'Server error: processing failed'
        '202':
          description: Job accepted for queued processing, either explicitly or because immediate processing capacity is occupied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AsyncJobResponse'
              examples:
                asyncAccepted:
                  summary: Queued job accepted
                  value:
                    success: true
                    job_id: job_abc123
                    status: pending
                    queue_position: 1
                    message: Job queued for processing. Use the status URL to check progress.
                    status_url: https://ffmpegapi.net/api/job/job_abc123/status
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - video_url
              - start_time
              - end_time
              properties:
                video_url:
                  type: string
                  format: uri
                  description: Video URL.
                start_time:
                  type: number
                  minimum: 0
                  description: Start time in seconds.
                end_time:
                  type: number
                  minimum: 0
                  description: End time in seconds. Must be greater than start_time.
                async:
                  type: boolean
                  description: Return a job_id immediately. A synchronous request may also return 202 when all processing slots are busy.
              additionalProperties: false
            examples:
              default:
                summary: Trim Video request
                value:
                  video_url: https://example.com/video.mp4
                  start_time: 5
                  end_time: 20
                  async: false
components:
  schemas:
    TrimAudioResponse:
      type: object
      required:
      - success
      - download_url
      - filename
      - trimmed_length
      properties:
        success:
          type: boolean
          const: true
        message:
          type: string
        download_url:
          type: string
          format: uri
        filename:
          type: string
          examples:
          - video_abc123.mp4
        trimmed_length:
          type: number
      additionalProperties: true
    AsyncJobResponse:
      type: object
      required:
      - success
      - job_id
      - status
      - status_url
      - queue_position
      - message
      properties:
        success:
          type: boolean
          const: true
        job_id:
          type: string
          examples:
          - job_abc123
        status:
          type: string
          enum:
          - pending
          - processing
          - completed
          - failed
        queue_position:
          type:
          - integer
          - 'null'
          minimum: 1
        message:
          type: string
        status_url:
          type: string
          format: uri
      additionalProperties: false
    ErrorResponse:
      type: object
      required:
      - success
      - error
      properties:
        success:
          type: boolean
          const: false
        error:
          type: string
      additionalProperties: true
    FileOutputResponse:
      type: object
      required:
      - success
      - download_url
      properties:
        success:
          type: boolean
          const: true
        message:
          type: string
        download_url:
          type: string
          format: uri
        filename:
          type: string
          examples:
          - video_abc123.mp4
      additionalProperties: true
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key