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SiteCheck API Text-to-Speech
x402
SiteCheck API Text-to-Speech is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).
Converts text (up to 1000 characters) into an MP3 audio file using a choice of named voices, powered by Deepgram Aura-2, with pay-per-call billing via USDC on Base.
Price / call$0.02
Success—
StatusUnknown
How this service works
Pay-per-call tools for AI agents: image generation, speech-to-text, text-to-speech, embeddings, LLM chat, website audits and contact enrichment. Payment: x402, USDC on Base. No signup, no API key.
Output
A JSON object containing the audio encoded as a base64 MP3 string (audio_base64), the MIME type (audio/mpeg), the model used (@cf/deepgram/aura-2-en), and the voice name selected. The agent must decode the base64 string to obtain the playable audio file.
Example use cases
Podcast intro narration
“Can you synthesize this 200-word podcast intro as audio using the 'zeus' voice? The text is: 'Welcome to The Future Stack, where we break down AI tools that matter. Today we're diving into x402 payments and what they mean for autonomous agents.'”
Accessibility audio for article
“Turn this article summary into spoken audio with the 'athena' voice so I can add it as an accessibility feature: 'In 2024, renewable energy accounted for 30% of global electricity generation, a record high driven by solar and wind expansion.'”
Customer support voice prompt
“Generate a friendly spoken greeting for my customer support bot using the 'aurora' voice — the text is: 'Hi there! Thanks for reaching out. I'm here to help you with your order or any questions you might have.'”
Technical details
Endpoint
POSThttps://api.sitecheck-api.workers.dev/api/tts?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need quick, pay-per-call text-to-speech without any signup or API key setup, especially when operating in an agentic context that supports x402 micropayments on Base. It offers a wide selection of named voices and returns base64 MP3 audio suitable for embedding or playback. Prefer it over subscription-based TTS APIs when cost must be per-call and no authentication credential management is desired.
Side effects
- Text exceeds 1000 character limit — request rejected or truncated
- Invalid voice name provided — may return error or fall back to default
- Payment failure via x402/USDC — 402 response, audio not returned
- Network timeout on Cloudflare Worker — 5xx error
- Empty text input — likely returns an error or silent audio
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Up to 1000 chars |
| voice | string | luna, asteria, athena, helena, hera, aurora, orion, apollo, arcas, atlas, hermes, zeus, draco, odysseus |
Output
Schema · Response
{
"type": "json",
"example": {
"mime": "audio/mpeg",
"model": "@cf/deepgram/aura-2-en",
"voice": "luna",
"audio_base64": "SUQzBAAAAAAA..."
}
}Tags
x402
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