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ApexAPI Text-to-Speech (TTS)
x402
ApexAPI Text-to-Speech (TTS) is a paid API for AI agents from apex-api-gamma.vercel.app, paid per call via x402, $0.080678/call, status unknown (last checked 2026-10-10).
Converts input text into synthesized audio speech using an AI text-to-speech engine, returning audio content.
Price / call$0.080678
Success—
StatusUnknown
How this service works
Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.
Output
The agent receives synthesized audio data (likely an audio file or base64-encoded audio) representing the spoken version of the provided input text.
Example use cases
Podcast episode audio generation
“I have a blog post about cryptocurrency trends that I want to turn into a podcast episode. Can you convert this text into clear, natural-sounding audio that I can publish? Here's the content: 'Bitcoin's latest price movement reflects growing institutional adoption and shifting market sentiment. Analysts predict increased volatility as regulatory frameworks evolve globally.'”
Accessibility narration for web content
“We need to make our finance news website more accessible for visually impaired users. Can you generate audio versions of our latest market analysis articles? Please synthesize this text into speech: 'Today's market opened with significant gains in tech stocks as investors responded positively to earnings reports and forward guidance from major companies.'”
Customer service voice message automation
“I want to create personalized voice messages for our weather alert system. Can you convert this alert message into audio so it sounds like a real announcement? Convert this to speech: 'Severe thunderstorm warning in effect until 8 PM. Seek shelter immediately and avoid outdoor activities. This is an automated weather alert.'”
Technical details
Endpoint
POSThttps://apex-api-gamma.vercel.app/api/ai/audio/tts?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-call, no-API-key text-to-speech conversion paid in USDC on Base via x402 protocol, and don't want to manage subscriptions or API credentials. Best for lightweight, on-demand TTS needs within the ApexAPI ecosystem.
Side effects
- Empty or missing query/text input returns an error
- Input text too long may exceed limits or time out
- Payment failure in USDC on Base blocks the call
- Service unavailable or cold-start delay on Vercel deployment
- Unsupported characters or languages in input may produce garbled audio
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Search query or input parameter |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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