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CNVRT File Transcription
x402
CNVRT File Transcription is a paid API for AI agents from cnvrt.ing, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-13).
Transcribes uploaded audio or video files to text using speech recognition, with optional timestamps and language hints.
Price / call$0.025
Success—
StatusUnknown
How this service works
Transcribe uploaded audio/video files to text. Payment via USDC on base.
Output
Returns a JSON object with a full text transcription of the uploaded media, the detected or specified language, word count, media duration in seconds, a unique job ID, and optionally an array of timestamped segment objects each containing start time, end time, and the corresponding text.
Example use cases
Example prompt
“I have an MP3 recording of a team meeting — can you transcribe it to text and include timestamps so I can find specific moments? The language is English.”
Technical details
Endpoint
POSThttps://cnvrt.ing/api/transcribe-fileWhen to prefer
Use this endpoint when you have a local or binary audio/video file to upload directly (multipart form upload), as opposed to transcribing media from a URL. Prefer this over the URL-based sibling endpoint when the media is not publicly accessible online. Choose this when you need timestamps for segment-level navigation of the transcript.
Side effects
- Unsupported file format — only audio/video files accepted as multipart binary
- File too large or corrupted — upload fails with error
- Missing required 'media' field — returns validation error
- Invalid language code — may fall back to auto-detection or return error
- Payment failure — USDC transaction on Base not confirmed, request rejected with 402
- Low audio quality causing inaccurate transcription with no error signaled
Output
Schema · Response
{
"input": {
"type": "http",
"method": "POST",
"bodyType": "multipart-form-data",
"bodyFields": {
"media": {
"type": "binary",
"required": true,
"description": "Audio or video file to transcribe (multipart upload)"
},
"language": {
"type": "string",
"required": false,
"description": "Language code (ISO 639-1) for better accuracy"
},
"includeTimestamps": {
"type": "boolean",
"required": false,
"description": "Include timestamp markers in the transcription"
}
}
},
"output": {
"type": "object",
"required": [
"success",
"transcription"
],
"properties": {
"jobId": {
"type": "string",
"description": "Unique job identifier"
},
"success": {
"type": "boolean",
"description": "Whether the transcription was successful"
},
"duration": {
"type": "number",
"description": "Duration of the media in seconds"
},
"language": {
"type": "string",
"description": "Detected or specified language"
},
"wordCount": {
"type": "number",
"description": "Number of words in transcription"
},
"timestamps": {
"type": "array",
"items": {
"type": "object",
"properties": {
"end": {
"type": "number",
"description": "End time in seconds"
},
"text": {
"type": "string",
"description": "Text for this segment"
},
"start": {
"type": "number",
"description": "Start time in seconds"
}
}
},
"description": "Array of timestamped segments (if requested)"
},
"transcription": {
"type": "string",
"description": "Full text transcription of the media"
}
}
}
}Tags
x402
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