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ForgeMesh Text-to-Speech API
x402
ForgeMesh Text-to-Speech API is a paid API for AI agents from x402.forgemesh.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Converts up to 2000 characters of text into natural-sounding speech audio (WAV, base64-encoded) using a locally-hosted neural speech engine, with 10 selectable voices and no API key required.
Price / call$0.01
Success—
StatusUnknown
How this service works
Text-to-speech API: convert up to 2000 characters into natural speech (WAV, base64) using our locally-hosted neural speech engine — no API keys, pay per call with USDC. Choose voices F1-F5/M1-M5. Use for voice agents, notifications, audio content, and IVR. Text never stored. Full 20-voice / 31-language tiered product at voice.forgemesh.io.
Output
Returns synthesized speech as a WAV audio file encoded in base64, produced by a locally-hosted neural speech engine. The audio represents the input text spoken in the selected voice. Text is not stored after processing.
Example use cases
Example prompt
“Read this message aloud using a female voice (F2): 'Your appointment is confirmed for Thursday at 3pm. Please arrive 10 minutes early and bring your ID.' Give me back the audio as a WAV file.”
Technical details
Endpoint
POSThttps://x402.forgemesh.io/text-to-speechWhen to prefer
Choose this endpoint when you need quick, pay-per-call text-to-speech synthesis without committing to an API key or subscription. Ideal for voice agents, IVR systems, audio notifications, and short-form audio content where text is under 2000 characters. Prefer it over voice.forgemesh.io's full product when you only need 1 of 10 basic voices and don't require the full 20-voice/31-language tier.
Side effects
- Text exceeds 2000 character limit — request rejected
- Invalid voice ID provided (not in F1-F5 or M1-M5 range) — defaults to F1 or returns error
- Payment not included or insufficient USDC — 402 Payment Required response
- Empty text input — may return error or silent audio
- Unsupported language/character set — may produce degraded or incorrect audio
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Text to speak, max 2000 chars |
| voice | string | Voice id, e.g. F1, M1 (default F1) |
Output
Schema · Response
{
"type": "json",
"example": {
"voice": "F1",
"characters": 38,
"audio_base64": "UklGRiQAAABXQVZF...",
"content_type": "audio/wav"
}
}Tags
x402
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