# CNVRT File Transcription

> 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.

## Facts

- Endpoint: POST https://cnvrt.ing/api/transcribe-file
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cnvrt-file-transcription-af5ba178
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Z4ickGbNvn1Q3L0zLwLhe

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cnvrt-file-transcription-af5ba178 -d '<json body>'
```

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.

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Response schema (JSON Schema)

```json
{
 "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"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cnvrt-file-transcription-af5ba178/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cnvrt.ing](https://www.zero.xyz/host/cnvrt.ing/llms.txt)