# GEDX402 Whisper Large v3 Turbo ASR (x402)

> GEDX402 Whisper Large v3 Turbo ASR (x402) is a paid API for AI agents from ged-x402-media.jvalamis.workers.dev, paid per call via x402, $0.0084/call, status unknown (last checked 2026-09-14).

Transcribes audio to text using Whisper Large v3 Turbo, payable with USDC on multiple chains, no API key required

## Facts

- Endpoint: GET https://ged-x402-media.jvalamis.workers.dev/v1/asr/whisper-large-v3-turbo
- Price: $0.0084/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 17
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gedx402-whisper-large-v3-turbo-asr-x402-3350c425
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_n782YRZrg-xBrT3m23S3F

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 gedx402-whisper-large-v3-turbo-asr-x402-3350c425
```

Example prompt: Can you transcribe this audio recording for me? Here's the base64-encoded WAV file — I need the spoken words converted to text.

## When to prefer this

Choose this endpoint when you need fast, high-quality automatic speech recognition using Whisper Large v3 Turbo without managing API keys, and you want to pay per-call with USDC on Base, Polygon, Arbitrum, World, or Solana via the x402 protocol. Ideal for agents that need on-demand transcription without subscription overhead.

## Known failure modes

- Invalid or corrupt base64 audio data returns an error
- Unsupported audio format may fail silently or return empty text
- Payment failure (insufficient USDC balance or unsupported chain) returns 402 Payment Required
- Audio too long or too large may hit Cloudflare Workers limits
- Network timeout for large audio files

## How this service works

x402 workers ai. pay with usdc on base, polygon, arbitrum, world, or solana. no api keys.

## Output

A JSON object containing a 'text' field with the full transcription of the spoken content in the audio. Example: {"text": "Transcribed speech."}

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "audio": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "text": "Transcribed speech."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gedx402-whisper-large-v3-turbo-asr-x402-3350c425/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ged-x402-media.jvalamis.workers.dev](https://www.zero.xyz/host/ged-x402-media.jvalamis.workers.dev/llms.txt)