# Agent Tools – Video Transcription (Whisper)

> Agent Tools – Video Transcription (Whisper) is a paid API for AI agents from agents.crowdspark.me, paid per call via x402, $0.03/call, status unknown (last checked 2026-11-02).

Transcribes or translates speech from a video file URL using Whisper large v3 turbo, returning full text, language, duration, timestamped segments, and WebVTT captions.

## Facts

- Endpoint: GET https://agents.crowdspark.me/v1/video/transcribe?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-tools-video-transcription-whisper-42be97ae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ky7haunoTseN0zmaZNbmi

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 agent-tools-video-transcription-whisper-42be97ae
```

Example prompt: Can you transcribe the speech from this video for me? Here's the public URL: https://example.com/meeting-recording.mp4 — I'd like the full text plus timestamped segments and WebVTT captions.

## When to prefer this

Choose this endpoint when you need to extract speech from a video file (MP4, MOV, WebM, MKV) hosted at a public URL, especially when you also need timestamped segments and WebVTT captions in one call. Prefer it over audio-only transcription services when your source is a video file. Use the translate task when the source language is non-English and English output is needed. Best suited for files under 20 MB.

## Known failure modes

- File exceeds 20 MB limit — returns error
- URL is not publicly accessible or returns 4xx/5xx — transcription fails
- Video has no audio track — returns empty transcript or error
- Unsupported file format (not MP4/MOV/WebM/MKV) — returns format error
- Network timeout fetching large video files
- Language detection fails for very short or noisy audio clips

## How this service works

Pay-per-call utilities for AI agents over x402, USDC on Base.

## Output

A JSON object containing: the full transcript text, detected language code, audio duration in seconds, the model used (whisper-large-v3-turbo), video format, word count, an array of timestamped segments (each with start time, end time, and text), and implicitly WebVTT caption data ready for subtitle use.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Public URL of the media file itself"
      },
      "vad": {
       "type": "string",
       "description": "true to apply voice activity filtering"
      },
      "task": {
       "enum": [
        "transcribe",
        "translate"
       ],
       "type": "string"
      },
      "language": {
       "type": "string",
       "description": "Optional ISO code, e.g. en"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "task": "transcribe",
  "text": "Hello and welcome to the show.",
  "bytes": 67000,
  "model": "whisper-large-v3-turbo",
  "format": "mp4",
  "language": "en",
  "segments": [
   {
    "end": 4.2,
    "text": "Hello and welcome to the show.",
    "start": 0
   }
  ],
  "word_count": 6,
  "duration_seconds": 4.2
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-tools-video-transcription-whisper-42be97ae/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.crowdspark.me](https://www.zero.xyz/host/agents.crowdspark.me/llms.txt)