Use when an agent needs spoken audio from short text (voice reply, narration, ac...
https://1gateway.dev/v1/ai/ttsOverview
Use when an agent needs spoken audio from short text (voice reply, narration, accessibility). Input: text (max 500 chars), lang (en, ko, ja, zh, es, fr; default en). Output: JSON with an MP3 (base64), voice, model, safety verdict. Fixed built-in voices, no voice cloning. Text screened by Llama Guard 3; unsafe 422, not charged. Not stored. Example: ?text=Hello%20from%201gateway&lang=en
Protocol
x402
Price
$0.0040
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Text-to-Speech
Source
bazaar
Indexed
2026-11-01 01:36:57
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"lang": "en",
"text": "Hello from 1gateway"
},
"type": "http"
}
Output Schema
{
"example": {
"audio": {
"base64": "//uQZAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
"bytes": 108,
"mimeType": "audio/mpeg"
},
"estimatedSeconds": 1.4,
"lang": "en",
"model": "@cf/myshell-ai/melotts",
"notes": [
"Synthesized by MeloTTS (MyShell.ai, MIT license) on Cloudflare Workers AI with a fixed built-in voice per language; no voice cloning. Text is screened by Llama…"
],
"safety": {
"textModel": "@cf/meta/llama-guard-3-8b",
"textVerdict": "safe",
"voiceCloning": false
},
"text": "Hello from 1gateway",
"upstreamCostUsd": 0.000005,
"voice": "melotts-en-default"
},
"type": "json"
}