Api Endpoint

BlockRun.AI

AI text-to-speech (ElevenLabs) — pay per call with USDC on Base

Open interactive test console

Offering

Provider: BlockRun.AI
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://blockrun.ai/api/v1/audio/speech
MIME type: Not provided
First seen: 2026-10-16T01:50:19.913Z
Last seen: 2026-11-01T14:57:12.185Z
Tags: AI, Inference, LLM, gateway

Website

Payment pricing

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

Payment option 1: 0.0535 USDC
Atomic price: 53500 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "53500",
    "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf"
  }
]

Observed health

Status: Healthy
Latest latency: 126 ms
Average latency: 485 ms
HTTP status: 204
Last checked: 2026-11-02T22:25:13.581Z
Reachability: 100% over 13 checks

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

Input schema

{
  "properties": {
    "body": {
      "properties": {
        "input": {
          "description": "Text to synthesize into speech",
          "type": "string"
        },
        "model": {
          "description": "Speech model ID (e.g., elevenlabs/flash-v2.5)",
          "type": "string"
        },
        "response_format": {
          "description": "Audio format: mp3 (default), opus, pcm, wav",
          "type": "string"
        },
        "speed": {
          "description": "Playback speed 0.7-1.2 (optional)",
          "type": "number"
        },
        "voice": {
          "description": "Voice alias (e.g., sarah, george) or raw ElevenLabs voice_id",
          "type": "string"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "type": "object"
}

Output schema

{
  "properties": {
    "input": {
      "properties": {
        "body": {
          "properties": {
            "input": {
              "description": "Text to synthesize into speech",
              "type": "string"
            },
            "model": {
              "description": "Speech model ID (e.g., elevenlabs/flash-v2.5)",
              "type": "string"
            },
            "response_format": {
              "description": "Audio format: mp3 (default), opus, pcm, wav",
              "type": "string"
            },
            "speed": {
              "description": "Playback speed 0.7-1.2 (optional)",
              "type": "number"
            },
            "voice": {
              "description": "Voice alias (e.g., sarah, george) or raw ElevenLabs voice_id",
              "type": "string"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "characters": {
              "type": "number"
            },
            "format": {
              "type": "string"
            },
            "url": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    }
  },
  "type": "object"
}