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AgentRXI Text-to-Speech (WAV)
x402
AgentRXI Text-to-Speech (WAV) is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-15).
Converts up to 2000 characters of text into a natural-sounding WAV audio file in one of six supported languages.
Price / call$0.005
Success—
StatusUnknown
How this service works
Text to speech. Send up to 2000 characters and a language (en, es, fr, zh, jp, kr); get a natural-sounding WAV recording back. Also callable as GET with the same fields as query parameters.
Output
A binary WAV audio file containing a natural-sounding voice rendering of the submitted text in the requested language. The response is the raw audio data, ready for playback or download.
Example use cases
Multilingual customer welcome message
“Generate a spoken WAV recording in French of this greeting: 'Bienvenue dans notre boutique. Comment puis-je vous aider aujourd'hui?' so I can use it in my store's phone system.”
Accessibility audio for web content
“Turn this paragraph into a WAV audio file in English so I can add a listen-along feature to my blog post: 'Artificial intelligence is transforming how we interact with technology every single day.'”
Japanese language learning pronunciation
“Can you synthesize the following Japanese text as a WAV recording so my students can hear the correct pronunciation: '今日はとても良い天気ですね。'”
Technical details
Endpoint
GEThttps://agentrxi.com/v1/speak?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a simple, low-cost WAV audio file from text with no complex API setup — just a text string and an optional language code. It is ideal for agents that need quick one-off voice synthesis in English, Spanish, French, Chinese, Japanese, or Korean at $0.005 per call. Prefer the sibling OpenAI-compatible TTS endpoint if you need voice selection or OpenAI SDK compatibility.
Side effects
- Text exceeds 2000 character limit — request rejected or truncated
- Unsupported language code provided — defaults to English or returns error
- Empty text field — likely returns an error or silent audio
- Payment not processed (x402) — 402 Payment Required response blocks the call
- Network timeout if synthesis takes too long for lengthy input
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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