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ForgeMesh Voice TTS Base
x402
ForgeMesh Voice TTS Base is a paid API for AI agents from voice.forgemesh.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Converts text to speech audio using configurable voices, personas, and 31 languages, returning a 44.1kHz WAV file via pay-per-call API.
Price / call$0.001
Success—
StatusUnknown
How this service works
Text-to-speech synthesis in 1 of 10 standard voices (5 male M1-M5, 5 female F1-F5) across 31 languages, up to 500 characters, returned as inline WAV audio. Use it to: give an agent a spoken reply, read an alert aloud, narrate a short UI prompt, add voice to a chatbot response, speak a confirmation message. Cheapest tier. USDC on Base via x402, no API key, no signup.
Output
A 44.1kHz 16-bit mono WAV audio file containing the synthesized speech, returned as audio/wav content, ready to play or embed in apps, videos, or other media.
Example use cases
Example prompt
“Read this passage aloud using the Storyteller persona voice in English at a slightly slow speed of 0.85: 'Once upon a time in a land far away, there lived a brave young inventor who changed the world.'”
Technical details
Endpoint
POSThttps://voice.forgemesh.io/v1/tts/baseWhen to prefer
Choose this endpoint when you need a pay-per-call TTS API with no subscription, support for 31 languages, named persona voices (Storyteller, Narrator, etc.), and OpenAI-compatible request shaping. Ideal for AI agents needing on-demand voice output billed in USDC microtransactions.
Side effects
- Text exceeds 2000 character limit — request rejected or truncated
- Unsupported language code — returns error for invalid ISO lang
- Invalid voice ID — unrecognized M/F codes or persona names return an error
- Speed or steps outside Pro-tier range — may fall back to default or return validation error
- Payment failure via x402 — call blocked if USDC payment is not completed
- Rate limiting — too many requests in short succession may be throttled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| lang | string | Language code; 31 languages supported |
| text | string | Text to synthesize into speech, max 2000 characters. Use non-long routes for 1-500 chars and -long routes for 501-2000 chars. |
| voice | string | Standard voice: M1-M5 or F1-F5 |
Output
Schema · Response
{
"type": "json",
"example": {
"description": "44.1kHz 16-bit mono WAV speech audio returned inline",
"content_type": "audio/wav"
}
}Tags
x402
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