Converts text to speech with 30+ voices and 5 audio formats
Converts text to speech with 30+ voices and 5 audio formats. Morpheus primary for Kokoro, Venice fallback and alternate TTS models (xAI / ElevenLabs / Orpheus / MiniMax / Gemini), with fal.ai storage for hosted audio URLs. Use it as a TTS API or voice generator.
50000 (raw units)
price
2
calls / 30d
1
unique payers
2026-09-16
updated
Provider
x402.agentutility.ai · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
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"network": "eip155:8453",
"payTo": "0x6c0752c09e7F6fA6526fCDf40e456a159ebB5621",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"maxTimeoutSeconds": 300
},
{
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"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "50000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"discoverable": true,
"info": {
"input": {
"body": {
"format": "mp3",
"text": "Hello, this is a test of the speech synthesizer.",
"voice": "af_sky"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"audio_url": "https://...mp3",
"file_size_bytes": 24000,
"format": "mp3",
"source": "morpheus"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"format": {
"description": "Audio format. Default mp3.",
"enum": [
"mp3",
"wav",
"opus",
"aac",
"flac"
],
"type": "string"
},
"model": {
"description": "TTS model ID. Default tts-kokoro; the voice must be compatible with the selected model.",
"type": "string"
},
"speed": {
"description": "Playback speed from 0.25 to 4. Default 1.",
"type": "number"
},
"text": {
"description": "Text to synthesize, up to 4,000 characters.",
"maxLength": 4000,
"type": "string"
},
"voice": {
"description": "Model-specific voice ID. Default af_sky; onyx maps to the Kokoro am_onyx voice.",
"type": "string"
}
},
"required": [
"text"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"audio_url": {
"type": "string"
},
"file_size_bytes": {
"type": "integer"
},
"format": {
"type": "string"
},
"source": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "bc_awpbwsy3"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
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},
"type": "object"
}
}
}Use it
curl
curl "https://x402.agentutility.ai/text-to-speech" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://x402.agentutility.ai/text-to-speech");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://x402.agentutility.ai/text-to-speech")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/5203.json, and this resource appears in /discovery/resources and /discovery/search.