Api Endpoint

voice.forgemesh.io

Text-to-speech with speed (0.7x-2.0x) and quality-step (1-100) control, 1 of 10 standard voices across 31 languages, up to 500 characters, returned as WAV audio. Use it to: speak an urgent alert faster, slow a reading for clarity, tune synthesis quality against latency, produce a paced voice cue for a UI, generate a rushed or calm-toned notification. USDC on Base via x402, no API key.

Open interactive test console

Offering

Provider: voice.forgemesh.io
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Creative
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://voice.forgemesh.io/v1/tts/pro
MIME type: audio/wav
First seen: 2026-10-16T01:50:19.913Z
Last seen: 2026-11-02T15:21:40.511Z
Tags: None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x962794FB8aD92941fAf1ab446b9e30637B86F331"
  }
]

Observed health

Status: Healthy
Latest latency: 51 ms
Average latency: 397 ms
HTTP status: 200
Last checked: 2026-11-01T20:13:03.882Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "POST"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "type": "object",
      "properties": {
        "text": {
          "type": "string",
          "minLength": 1,
          "maxLength": 2000,
          "description": "Text to synthesize into speech, max 2000 characters. Use non-long routes for 1-500 chars and -long routes for 501-2000 chars."
        },
        "voice": {
          "type": "string",
          "enum": [
            "M1",
            "M2",
            "M3",
            "M4",
            "M5",
            "F1",
            "F2",
            "F3",
            "F4",
            "F5"
          ],
          "description": "Standard voice: M1-M5 or F1-F5"
        },
        "lang": {
          "type": "string",
          "enum": [
            "en",
            "ko",
            "ja",
            "ar",
            "bg",
            "cs",
            "da",
            "de",
            "el",
            "es",
            "et",
            "fi",
            "fr",
            "hi",
            "hr",
            "hu",
            "id",
            "it",
            "lt",
            "lv",
            "nl",
            "pl",
            "pt",
            "ro",
            "ru",
            "sk",
            "sl",
            "sv",
            "tr",
            "uk",
            "vi"
          ],
          "description": "Language code; 31 languages supported"
        },
        "speed": {
          "type": "number",
          "minimum": 0.7,
          "maximum": 2,
          "description": "Pro/Custom expressive speed control, 0.7-2.0. Presets: slow 0.7, normal 1.0, fast 1.3, rapid 1.6"
        },
        "steps": {
          "type": "integer",
          "minimum": 1,
          "maximum": 100,
          "description": "Pro/Custom quality control, 1-100. Presets: draft 4, standard 8, high 16, ultra 24"
        }
      },
      "required": [
        "text"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "content_type": {
          "type": "string",
          "const": "audio/wav"
        },
        "audio": {
          "type": "string",
          "description": "Inline WAV bytes in the HTTP response body"
        }
      }
    }
  },
  "required": [
    "type"
  ]
}