Marketplace · API · x402

www.trezalabs.com/api/x402/speech

Text to speech (AI voice generation): send text, get a natural ElevenLabs voiceover MP3 back in the same response. Use it when an agent needs narration, a voiceover for a video, or a spoken version of text. Eleven v3 (expressive, takes [whispers]-style directions) or Multilingual v2 (29 languages), a choice of ElevenLabs narrators, up to 3000 characters, $0.42 per 1,000 characters. GET this URL for the voices. No account or API key: the payment is the only credential.

Endpoint	`https://www.trezalabs.com/api/x402/speech`
Trust	100% uptime over 1 checks · ~661 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xaE393a9CD728F7397F50f6f8C88096a0F3D2b42C
method	POST
last updated	2026-10-28T21:21:22.083Z

Use it

Call it (an x402 client pays automatically)

curl -i https://www.trezalabs.com/api/x402/speech
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-0aca17ba67602897

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}