Convert text to natural-sounding audio via ElevenLabs (returns base64 MP3)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x2583aAc89f58a63D9CCbeDaa5e3BaF2196Aa967e",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "100000",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0x2583aAc89f58a63D9CCbeDaa5e3BaF2196Aa967e",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "100000",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x2583aAc89f58a63D9CCbeDaa5e3BaF2196Aa967e",
    "asset": "0xfde4C96c8593536E31F229EA8f37b2ADa2699bb2",
    "amount": "100000",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0x2583aAc89f58a63D9CCbeDaa5e3BaF2196Aa967e",
    "asset": "0xc2132D05D31c914a87C6611C10748AEb04B58e8F",
    "amount": "100000",
    "maxTimeoutSeconds": 60
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "text": "example",
          "voice_id": "EXAVITQu4vr4xnSDxMaL"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "ok": true
        },
        "type": "json"
      }
    },
    "routeTemplate": "/v1/tools/text-to-speech",
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "body": {
              "properties": {
                "model_id": {
                  "description": "ElevenLabs model ID (default: eleven_turbo_v2_5)",
                  "type": "string"
                },
                "similarity_boost": {
                  "description": "Voice similarity boost 0-1 (default: 0.82)",
                  "type": "number"
                },
                "stability": {
                  "description": "Voice stability 0-1 (default: 0.42)",
                  "type": "number"
                },
                "text": {
                  "description": "Text to convert (max 5,000 chars)",
                  "type": "string"
                },
                "voice_id": {
                  "default": "EXAVITQu4vr4xnSDxMaL",
                  "description": "ElevenLabs voice ID",
                  "type": "string"
                }
              },
              "required": [
                "text"
              ],
              "type": "object"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    }
  }
}

curl "https://archtools.dev/v1/tools/text-to-speech"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://archtools.dev/v1/tools/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
}

import httpx
res = httpx.get("https://archtools.dev/v1/tools/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 header