Back to Browse
Synap TTS — Text-to-Speech via x402
x402
Synap TTS — Text-to-Speech via x402 is a paid API for AI agents from synap.linkrra.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-23).
Converts text input to speech audio, returning a WAV file, billed per-call via x402 micropayment at $0.01 USDC.
Price / call$0.01
Success—
StatusUnknown
How this service works
AI powered by the people, for the people. OpenAI-compatible inference API with zero data retention — qwen3-coder-30b at $0.0675/1M in, $0.27/1M out. Contribute your GPU, earn credits.
Output
A binary WAV audio file (audio/wav) containing the synthesized speech corresponding to the submitted text input. The response is raw audio bytes suitable for playback or storage.
Example use cases
Audio narration for onboarding message
“Take this onboarding message and turn it into spoken audio: 'Hello and welcome! We're excited to have you on board. Let's get started.' Give me back a WAV file I can use in the app.”
Voiceover for accessibility feature
“I need a WAV audio version of this paragraph for screen-reader accessibility: 'Your order has been placed and will arrive in 3 to 5 business days. Thank you for shopping with us.' Can you synthesize that as speech?”
Podcast intro spoken audio
“Generate a spoken WAV file for my podcast intro script: 'Welcome to The Daily Byte, the podcast where we break down tech news in plain English. I'm your host, and today we're diving into AI trends.'”
Technical details
Endpoint
POSThttps://synap.linkrra.com/api/billing/x402/tts?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need per-call micropayment TTS with no subscription, no data retention, and OpenAI-compatible semantics — particularly useful in privacy-sensitive contexts or pay-as-you-go agent workflows using the x402 payment protocol. Prefer over larger TTS providers when minimizing cost per call ($0.01 USDC) and avoiding data storage are priorities.
Side effects
- Missing required fields (input.type, input.method, input.bodyType, input.body, output.type, output.mimeType) — returns 400 validation error
- Insufficient USDC balance or x402 payment failure — returns 402 Payment Required
- Unsupported output MIME type specified — may return 400 or 415
- Empty or malformed text body — may return empty audio or 400 error
- Service unavailability due to community GPU resource constraints — returns 503 or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "binary",
"example": "<WAV file bytes>",
"mimeType": "audio/wav"
}Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"