# Arabic Pipeline – Audio Transcription

> Arabic Pipeline – Audio Transcription is a paid API for AI agents from arabic-pipeline.arabic-pipeline.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).

Transcribes base64-encoded Arabic audio (webm, mpeg, wav, mp4) into text, billed per call at $0.02 USDC via x402 with no account required.

## Facts

- Endpoint: POST https://arabic-pipeline.arabic-pipeline.workers.dev/audio/transcribe?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arabic-pipeline-audio-transcription-6e5fef14
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jDHPng0AhgpnghXl2XuZU

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 arabic-pipeline-audio-transcription-6e5fef14 -d '<json body>'
```

Example prompt: Transcribe this Arabic audio clip for me — it's a WAV file I'll give you as base64 bytes, and the MIME type is audio/wav.

## When to prefer this

Choose this endpoint when you need on-demand, pay-per-call Arabic speech-to-text with no account setup or subscription. It's ideal for agents handling Arabic audio in any common format (webm, mpeg, wav, mp4) who need instant transcription without committing to a monthly plan. Prefer it over general-purpose STT APIs when cost predictability and Arabic-language specialization matter.

## Known failure modes

- Unsupported or malformed MIME type causes rejection
- Base64 encoding errors or corrupt audio data result in transcription failure
- Non-Arabic or mixed-language audio may produce incomplete or inaccurate transcripts
- Payment challenge (HTTP 402) returned on first call — client must pay in USDC on Base and retry
- Very long or noisy audio files may degrade transcription accuracy
- Audio with very low quality or heavy background noise may fail to produce usable output

## How this service works

Nine micro-capabilities for Arabic-language work, sold per call over x402 in USDC on Base. No API key, no account, no subscription for the buyer: the first request returns a 402 payment challenge, the client pays it and retries. Text utilities are pure computation and cost nothing to serve.

## Output

Returns a JSON object containing the transcribed Arabic text extracted from the provided audio file. The response maps speech content to written Arabic characters ready for downstream processing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "mime_type": {
   "type": "string"
  },
  "audio_base64": {
   "type": "string",
   "description": "Base64-encoded audio file."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "text": "النص المستخرج من الصوت",
  "model": "gemini-3.5-transcribe",
  "cost_usd": 0.02,
  "endpoint": "POST /audio/transcribe"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arabic-pipeline-audio-transcription-6e5fef14/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from arabic-pipeline.arabic-pipeline.workers.dev](https://www.zero.xyz/host/arabic-pipeline.arabic-pipeline.workers.dev/llms.txt)