Tool detail

BlockRun.AI

Runs an OpenAI-compatible chat-completions request against a chosen AI model and returns the model's response, billed per request in USDC.

Categories: LLM inference

Use when

run a chat completion against a chosen AI model, pay per call
get a second opinion from a different model via one gateway

Not for

flat per-request price shown here may not include model-specific token costs
not every model is free - 6 free open-weight models are the exception

Inputs

POST JSON body: model, messages[] (required); max_tokens, temperature, stream (optional)

Admitted input schema

{
  "type": "object",
  "properties": {
    "max_tokens": {
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "description": "Maximum tokens to generate"
    },
    "messages": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "content": {
            "type": "string",
            "minLength": 0,
            "maxLength": 4096
          },
          "role": {
            "type": "string",
            "minLength": 0,
            "maxLength": 4096
          }
        },
        "required": [],
        "additionalProperties": false
      },
      "minItems": 0,
      "maxItems": 100,
      "description": "Array of chat messages with role and content"
    },
    "model": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "AI model ID (e.g., gpt-4o-mini, claude-haiku-4.5)"
    },
    "stream": {
      "type": "boolean",
      "description": "Enable streaming responses"
    },
    "temperature": {
      "type": "number",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "description": "Sampling temperature (0-2)"
    }
  },
  "required": [
    "model",
    "messages"
  ],
  "additionalProperties": false
}

Endpoint

Method: POST
URL: https://blockrun.ai/api/v1/chat/completions

Payment

Protocol: x402
Listed price: 0.002 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: POST https://blockrun.ai/api/v1/chat/completions
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z