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DevX Voice Translation
x402
DevX Voice Translation is a paid API for AI agents from voice.madebydevx.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Translates text between 100 languages using the M2M100 model, with pay-per-call USDC micropayments and no account required.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call speech-to-text, text-to-speech, translation and OCR for AI agents. x402 v2, USDC on Base, no account or API key. Price is computed from the input (audio minutes, characters, images) and returned in the 402 quote; failures are never charged. Runs on Cloudflare Workers AI open models (Whisper large-v3-turbo, MeloTTS, M2M100, Gemma 4).
Output
Returns a JSON object containing the translated text, the source and target language codes, the model used (m2m100-1.2b), the character count, a billed_units count, an operation_id UUID, and payment confirmation details including transaction hash, network, and amount paid in USDC.
Example use cases
Localizing customer support replies
“Translate this support reply into Spanish for our customer: 'Your order has been shipped and will arrive within 3 business days.' Auto-detect the source language.”
Multilingual product description pipeline
“I need to translate this product description into Japanese for our online store listing: 'Lightweight running shoes with breathable mesh upper and cushioned sole.' Target language is Japanese.”
Real-time chat message translation
“A user just sent me a message in an unknown language — translate it to English: 'Bonjour, je voudrais savoir où est ma commande.' Auto-detect the source.”
Technical details
Endpoint
POSThttps://voice.madebydevx.com/v1/translation?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-call machine translation with no account, no API key, and no subscription — ideal for AI agents that translate sporadically and want to pay per use in USDC on Base. It supports 100 languages and up to 5000 characters per request. Prefer it over SaaS translation APIs (DeepL, Google Translate) when you want crypto-native micropayment billing, or over general LLM translation when you want predictable per-call pricing and a dedicated translation model.
Side effects
- Text exceeds 5000 character limit — request rejected before charge
- Unsupported target_lang value — validation error returned, no charge
- Source text is empty or missing — 400 error, not billed
- Network or model inference failure on Cloudflare — 5xx, not billed
- Invalid idempotency key format — rejected with schema validation error
- Payment failure (insufficient USDC balance) — translation not executed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| q | string | |
| text | string | Text to translate (alias q) |
| source | string | |
| target | string | |
| requestKey | string | Optional idempotency key: the same payer + requestKey + input within 7 days returns the stored result without a second charge. |
| source_lang | string | Source language ISO 639-1 or "auto" (default; alias source) |
| target_lang | string | Target language, ISO 639-1 (alias target) |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"model": "m2m100-1.2b",
"characters": 26,
"source_lang": "en",
"target_lang": "de",
"billed_units": 1,
"translated_text": "Guten Morgen, wie geht es Ihnen?",
"detected_language": null
},
"status": "paid",
"payment": {
"status": "paid",
"network": "eip155:8453",
"tx_hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"amount_raw": "1000"
},
"operation_id": "9b3e7a12-4c5d-4e6f-8a9b-0c1d2e3f4a5b"
}
}Tags
x402
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