# GEDX402 Smart Turn ASR v2

> GEDX402 Smart Turn ASR v2 is a paid API for AI agents from ged-x402-media.jvalamis.workers.dev, paid per call via x402, $0.0021/call, status unknown (last checked 2026-09-13).

Transcribes speech from base64-encoded audio using a smart turn detection model, payable with USDC on multiple blockchains via x402

## Facts

- Endpoint: GET https://ged-x402-media.jvalamis.workers.dev/v1/asr/smart-turn-v2
- Price: $0.0021/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gedx402-smart-turn-asr-v2-a57ed8cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CgkkHEXnHhE-Lj_g8nHVM

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-smart-turn-asr-v2-a57ed8cd
```

Example prompt: Can you transcribe this audio recording for me? I have it as a base64-encoded WAV file and need the spoken words converted to text.

## When to prefer this

Choose this endpoint when you need automatic speech recognition without managing API keys, prefer micropayments in USDC on Base, Polygon, Arbitrum, World, or Solana, and want a smart turn detection model (v2) specifically. Good for pay-per-use ASR workloads integrated with crypto payment workflows.

## Known failure modes

- Invalid or malformed base64 audio data returns an error
- Unsupported audio format may cause transcription failure
- Payment failure if insufficient USDC balance on selected chain
- Network timeout if audio payload is too large
- Empty or silent audio returns empty transcript

## 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 the transcribed text from the audio input, e.g. {"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-smart-turn-asr-v2-a57ed8cd/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)