Api Endpoint

voice.forgemesh.io

Batch text-to-speech: synthesize up to 20 text items in a single call, standard voices only, for 501-2000 total characters, returns JSON with base64 WAV audio plus duration and sample rate per item. Use it to: batch-voice a longer set of messages, produce audio for a multi-section script or FAQ, generate several paragraph-length voice clips in one request without repeated calls. USDC on Base via x402.

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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/batch-long
MIME type
application/json
First seen
2026-10-16T01:50:45.949Z
Last seen
Tags
None supplied

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
1060 ms
Average latency
1237 ms
HTTP status
200
Last checked
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": {
        "items": {
          "type": "array",
          "minItems": 1,
          "maxItems": 20,
          "description": "Array of standard-voice text items. Total text across all items must be <= 2000 characters; use /v1/tts/batch for <=500 total chars and /v1/tts/batch-long for 501-2000 total chars.",
          "items": {
            "type": "object",
            "properties": {
              "text": {
                "type": "string",
                "minLength": 1,
                "maxLength": 2000,
                "description": "Text for this batch item"
              },
              "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"
              }
            },
            "required": [
              "text"
            ],
            "additionalProperties": false
          }
        },
        "defaults": {
          "type": "object",
          "description": "Default standard voice and language for all items",
          "properties": {
            "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"
            }
          },
          "additionalProperties": false
        }
      },
      "required": [
        "items"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "items": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "audio_base64": {
                "type": "string"
              },
              "duration_s": {
                "type": "number"
              },
              "format": {
                "type": "string"
              },
              "sample_rate": {
                "type": "integer"
              }
            }
          }
        }
      }
    }
  },
  "required": [
    "type"
  ]
}