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NoJunk Speech - Text to Speech (TTS)
x402
NoJunk Speech - Text to Speech (TTS) is a paid API for AI agents from nojunk-speech.mick8511.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Converts text (up to 400 characters) into natural-sounding MP3 audio using selectable English voices, returning raw audio or base64-encoded JSON.
Price / call$0.01
Success—
StatusUnknown
How this service works
Speech speak: Convert text (up to 2,000 characters) into natural MP3 speech, returned as audio/mpeg bytes or base64 JSON (Deepgram Aura-1).
Output
Returns either a raw audio/mpeg binary body (MP3) or, when format=json is specified, a JSON object containing audio_base64 (the MP3 as a base64 string), the speaker model used, the original text character count, the content type, and a generated_at timestamp. Charged $0.01 USDC only when a valid result is returned.
Example use cases
Voice response for a customer support bot
“Generate spoken audio saying 'Thank you for contacting support, a representative will be with you shortly.' using the aura-hera-en voice and return it as JSON with base64 audio.”
Podcast-style narration from a script
“Turn this script excerpt into MP3 audio using the aura-orpheus-en voice: 'Welcome back to the show. Today we explore the science of deep sleep and why it matters for your health.'”
Accessibility read-aloud for app notifications
“Speak this notification text using the default voice and return raw MP3: 'You have 3 new messages waiting in your inbox.'”
Technical details
Endpoint
POSThttps://nojunk-speech.mick8511.workers.dev/speak?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-use TTS with no subscription, charged only on success, with a selection of 12 distinct English voices via the Deepgram Aura model, and you want either raw MP3 streaming or base64 JSON output in a single $0.01 USDC call settled on Base.
Side effects
- Text exceeds 400 characters — request rejected
- Empty or missing text field — validation error
- Invalid speaker name — falls back to default or returns error
- Payment failure via x402 — no charge, no audio returned
- Audio generation backend unavailable — 5xx error with no charge
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Text to speak (1 to 400 characters) |
| format | string | "mp3" (default: raw audio/mpeg body) or "json" ({audio_base64, ...}) |
| speaker | string | Optional voice, default asteria; one of asteria, luna, stella, athena, hera, orion, arcas, perseus, angus, orpheus, helios, zeus (legacy aura-<voice>-en names also accepted) |
Output
Schema · Response
{
"type": "json",
"example": {
"bytes": 38400,
"model": "@cf/deepgram/aura-1",
"speaker": "aura-asteria-en",
"text_chars": 54,
"audio_base64": "SUQzBAAAAAAAI1RTU0UAAAAPAAADTGF2ZjU4Ljc2LjEwMAAAAAAAAAAAAAAA//tQxAAD...",
"content_type": "audio/mpeg",
"generated_at": "2026-10-15T12:00:00.000Z"
}
}Tags
x402
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