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Sift Web Tools – Text-to-Speech (TTS)
x402
Sift Web Tools – Text-to-Speech (TTS) is a paid API for AI agents from sift.srv1996466.hstgr.cloud, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-22).
Converts text into spoken audio (MP3 or WAV) using a selectable voice, returning audio content for playback or download.
Price / call$0.04
Success—
StatusUnknown
How this service works
Text to natural speech (MP3 or WAV), 30 voices. Turns up to 1500 characters into natural speech with Google's Gemini TTS. 30 voices (e.g. Kore, Puck, Charon, Aoede). MP3 or WAV.
Output
An audio file (MP3 by default, or WAV if requested) containing the synthesized speech of the provided text, ready for playback, download, or embedding. The call costs $0.04 USDC on Base and is only charged on HTTP 200 success.
Example use cases
Voiceover for a product announcement
“Turn this product launch blurb into a spoken MP3 using the Kore voice: 'Introducing our newest model — faster, lighter, and built for creators.'”
Accessible audio version of an article summary
“Convert this 200-word article summary into a WAV audio file so users who prefer listening can hear it read aloud.”
Dynamic audio notification for an agent pipeline
“Generate a short spoken MP3 of the message 'Your order has shipped and will arrive tomorrow by 5 PM' — I need it to play as a voice alert.”
Technical details
Endpoint
GEThttps://sift.srv1996466.hstgr.cloud/v1/tts?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-call text-to-speech without a subscription, paid only on success via USDC on Base. It is ideal for agents with sporadic TTS needs that want a simple GET-based API with no SDK, and when outputs up to 1500 characters per call are sufficient. Prefer it over heavyweight TTS services when you want crypto-native micropayment billing and minimal integration overhead.
Side effects
- Text exceeds 1500 character limit — request will fail or be truncated
- Invalid voice name provided — falls back to default Kore or returns an error
- Unsupported format value (anything other than mp3 or wav) — error response
- Payment failure on Base/x402 — no charge and no audio returned
- Service unavailable on the hosting provider — HTTP 5xx with no audio
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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