Generate high-fidelity expressive speech for $0
Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.
80000 (raw units)
price
1
calls / 30d
1
unique payers
2026-08-29
updated
Provider
api.delx.ai · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "80000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "80000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "28heAMpFkeUJsL7o7apiK4oJwZWq2fUHinRwbgYYsemG",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "80000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"category": "audio",
"info": {
"input": {
"body": {
"emotion": "happy",
"language": "English",
"pitch": 0,
"speed": 1,
"text": "Your autonomous agent completed the mission successfully.",
"voice": "English_CaptivatingStoryteller"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"audio_url": "https://api.delx.ai/api/v1/generated-audio-hd/7de36cd5f5f34ef8a28904b9b5985f60.wav",
"bytes": 588252,
"channels": 1,
"duration_ms": 9172,
"emotion": "happy",
"generation_id": "7de36cd5f5f34ef8a28904b9b5985f60",
"gross_margin_usd": 0.067,
"input_tokens": 130,
"language": "English",
"media_type": "audio/wav",
"model": "minimax/speech-02-hd",
"pitch": 0,
"provider": "replicate",
"provider_attempts": 1,
"sale_price_usdc": 0.08,
"sample_rate_hz": 32000,
"sample_width_bits": 16,
"sha256": "7ded32df89c15e721f6e997931b3ee28d40a89635fe35d91b5a496712e95bead",
"speed": 1,
"upstream_cost_usd": 0.013,
"voice": "English_CaptivatingStoryteller"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"anyOf": [
{
"required": [
"text"
]
},
{
"required": [
"input"
]
}
],
"properties": {
"emotion": {
"default": "auto",
"enum": [
"auto",
"happy",
"sad",
"angry",
"fearful",
"disgusted",
"surprised",
"neutral"
],
"type": "string"
},
"input": {
"description": "Alias for text; the UTF-8 encoding must not exceed 500 bytes.",
"maxLength": 500,
"minLength": 1,
"type": "string",
"x-maxUtf8Bytes": 500
},
"language": {
"default": "Automatic",
"enum": [
"Automatic",
"English",
"French",
"German",
"Italian",
"Japanese",
"Korean",
"Portuguese",
"Spanish"
],
"type": "string"
},
"pitch": {
"default": 0,
"maximum": 12,
"minimum": -12,
"type": "integer"
},
"speed": {
"default": 1,
"maximum": 2,
"minimum": 0.5,
"type": "number"
},
"text": {
"description": "Text to synthesize; the UTF-8 encoding must not exceed 500 bytes.",
"maxLength": 500,
"minLength": 1,
"type": "string",
"x-maxUtf8Bytes": 500
},
"voice": {
"default": "English_Wiselady",
"enum": [
"English_Wiselady",
"English_Deep-VoicedGentleman",
"English_CaptivatingStoryteller",
"Portuguese_Wiselady",
"Portuguese_Deep-VoicedGentleman",
"Portuguese_CaptivatingStoryteller",
"Portuguese_Narrator",
"Spanish_Wiselady",
"Spanish_Deep-tonedMan",
"Spanish_CaptivatingStoryteller",
"Spanish_Narrator"
],
"type": "string"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"audio_url": "https://api.delx.ai/api/v1/generated-audio-hd/7de36cd5f5f34ef8a28904b9b5985f60.wav",
"bytes": 588252,
"channels": 1,
"duration_ms": 9172,
"emotion": "happy",
"generation_id": "7de36cd5f5f34ef8a28904b9b5985f60",
"gross_margin_usd": 0.067,
"input_tokens": 130,
"language": "English",
"media_type": "audio/wav",
"model": "minimax/speech-02-hd",
"pitch": 0,
"provider": "replicate",
"provider_attempts": 1,
"sale_price_usdc": 0.08,
"sample_rate_hz": 32000,
"sample_width_bits": 16,
"sha256": "7ded32df89c15e721f6e997931b3ee28d40a89635fe35d91b5a496712e95bead",
"speed": 1,
"upstream_cost_usd": 0.013,
"voice": "English_CaptivatingStoryteller"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type",
"example"
],
"type": "object"
}
},
"required": [
"input",
"output"
],
"type": "object"
},
"serviceName": "MiniMax Speech HD for Agents",
"summary": "Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.",
"tags": [
"x402",
"text-to-speech",
"tts",
"speech-hd",
"high-fidelity"
]
}
}Use it
curl
curl "https://api.delx.ai/api/v1/x402/speech-hd" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://api.delx.ai/api/v1/x402/speech-hd");
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://api.delx.ai/api/v1/x402/speech-hd")
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/4068.json, and this resource appears in /discovery/resources and /discovery/search.