# Generate lipsync (release pending)

Source: https://recoupable.dev/docs/api-reference/content/lipsync

Generate audio-driven video (release pending)

## POST /api/content/lipsync

Full OpenAPI specification: https://recoupable.dev/docs/spec/content.json

## Authentication

This operation requires one of the security alternatives in the specification below. Security scheme definitions are included where present in the published specification.

[Authentication guide](https://recoupable.dev/docs/authentication)

## Operation and referenced schemas

```json
{
  "openapi": "3.1.0",
  "info": {
    "title": "Recoup API - Content",
    "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"
    }
  ],
  "paths": {
    "/api/content/lipsync": {
      "post": {
        "summary": "Generate audio-driven video (release pending)",
        "description": "Available after the coordinated API and Tasks release for mono#348. Not verified on the deployed baseline. Fixed fal-ai/ltx-2-19b/audio-to-video; estimated rounded output megapixels at $0.0018 per unit, actual provider units used when supplied. The worker verifies an audio stream before final composition; presence of audio is not proof of perceptual lip alignment.",
        "operationId": "createContentLipsync",
        "tags": [
          "Content"
        ],
        "security": [
          {
            "apiKeyAuth": []
          },
          {
            "bearerAuth": []
          }
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/ContentCreateLipsyncRequest"
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Video generated successfully",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ContentCreateVideoResponse"
                }
              }
            }
          },
          "400": {
            "description": "Validation failed — invalid or missing request body fields",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ContentErrorResponse"
                }
              }
            }
          },
          "401": {
            "description": "Unauthorized — invalid or missing API key",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ContentErrorResponse"
                }
              }
            }
          },
          "402": {
            "description": "Insufficient credits before generation. The fixed LTX audio-to-video model costs $0.0018 per rounded output megapixel (1,800 micro-dollar credits per unit); duration and frame dimensions determine the preflight estimate.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ContentErrorResponse"
                }
              }
            }
          },
          "429": {
            "description": "Per-account generation rate exceeded (30 requests/minute). Retry-After states seconds to wait."
          },
          "500": {
            "description": "Internal server error",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ContentErrorResponse"
                }
              }
            }
          },
          "502": {
            "description": "Provider returned no usable video; no Recoup generation charge is recorded."
          },
          "503": {
            "description": "Shared generation throttling unavailable; no provider generation starts."
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "ContentCreateLipsyncRequest": {
        "type": "object",
        "required": [
          "prompt",
          "image_url",
          "audio_url",
          "duration"
        ],
        "additionalProperties": false,
        "properties": {
          "prompt": {
            "type": "string",
            "minLength": 1,
            "maxLength": 50000
          },
          "image_url": {
            "type": "string",
            "format": "uri"
          },
          "audio_url": {
            "type": "string",
            "format": "uri",
            "description": "Public URL of the selected song window, not the full track."
          },
          "duration": {
            "type": "integer",
            "minimum": 5,
            "maximum": 19
          },
          "seed": {
            "type": "integer"
          }
        },
        "description": "Release-pending fixed LTX audio-to-video primitive. 1280x720 at 25fps; bounded frame count. No arbitrary model selection.",
        "example": {
          "prompt": "The artist performs the supplied vocal phrase.",
          "image_url": "https://example.com/artist.png",
          "audio_url": "https://example.com/selected-clip.mp3",
          "duration": 15
        }
      },
      "ContentCreateVideoResponse": {
        "type": "object",
        "required": [
          "videoUrl"
        ],
        "properties": {
          "videoUrl": {
            "type": "string",
            "format": "uri",
            "description": "URL of the generated video"
          }
        }
      },
      "ContentErrorResponse": {
        "type": "object",
        "required": [
          "error"
        ],
        "properties": {
          "error": {
            "type": "string",
            "description": "Error message describing what went wrong",
            "example": "Unauthorized"
          }
        }
      }
    },
    "securitySchemes": {
      "apiKeyAuth": {
        "type": "apiKey",
        "in": "header",
        "name": "x-api-key",
        "description": "Your Recoup API key. [Learn more](/docs/quickstart#api-keys)."
      },
      "bearerAuth": {
        "type": "http",
        "scheme": "bearer"
      }
    }
  }
}
```