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Api Endpoint

BlockRun.AI

AI music generation API - pay per track 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/generations
MIME type
Not provided
First seen
2026-10-16T01:50:19.913Z
Last seen
Tags
AI, Inference, LLM, gateway

Website

Payment pricing

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

Payment option 1
0.106 USDC
Atomic price: 106000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "106000",
    "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf"
  }
]

Observed health

Status
Healthy
Latest latency
116 ms
Average latency
447 ms
HTTP status
204
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

{
  "properties": {
    "body": {
      "properties": {
        "duration_seconds": {
          "description": "Target duration in seconds (5-240, default 30)",
          "type": "integer"
        },
        "instrumental": {
          "description": "Generate instrumental (no vocals)",
          "type": "boolean"
        },
        "lyrics": {
          "description": "Optional lyrics for the track",
          "type": "string"
        },
        "model": {
          "description": "Audio model ID (e.g., minimax/music-2.5+)",
          "type": "string"
        },
        "prompt": {
          "description": "Music style or description prompt",
          "type": "string"
        }
      },
      "required": [
        "prompt"
      ],
      "type": "object"
    }
  },
  "type": "object"
}

Output schema

{
  "properties": {
    "input": {
      "properties": {
        "body": {
          "properties": {
            "duration_seconds": {
              "description": "Target duration in seconds (5-240, default 30)",
              "type": "integer"
            },
            "instrumental": {
              "description": "Generate instrumental (no vocals)",
              "type": "boolean"
            },
            "lyrics": {
              "description": "Optional lyrics for the track",
              "type": "string"
            },
            "model": {
              "description": "Audio model ID (e.g., minimax/music-2.5+)",
              "type": "string"
            },
            "prompt": {
              "description": "Music style or description prompt",
              "type": "string"
            }
          },
          "required": [
            "prompt"
          ],
          "type": "object"
        }
      },
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "duration_seconds": {
              "type": "number"
            },
            "lyrics": {
              "type": "string"
            },
            "url": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    }
  },
  "type": "object"
}