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Api Endpoint

BlockRun — The routing & payment layer for AI

Multi-chain JSON-RPC passthrough fronted by BlockRun, powered by Tatum's gateway across 40 chains (Ethereum, Base, Solana, Polygon, BSC, Arbitrum, Optimism, Avalanche, Bitcoin, Sui, and more). One endpoint, every chain, pay-per-call in USDC, no API key. $0.002 per call (or per element of a JSON-RPC batch). Network: Polygon.

Open interactive test console

Offering

Provider
BlockRun.AI
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Api
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://blockrun.ai/api/v1/rpc/polygon
MIME type
Not provided
First seen
2026-10-16T03:14:42.322Z
Last seen
Tags
AI, Inference, LLM, gateway, Crypto, Search, Trading, Utility

Website

Payment pricing

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

Payment option 1
0.003 USDC
Atomic price: 3000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf"
  }
]

Observed health

Status
Healthy
Latest latency
85 ms
Average latency
657 ms
HTTP status
204
Last checked
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": {
        "id": {
          "description": "JSON-RPC id",
          "type": [
            "string",
            "number"
          ]
        },
        "jsonrpc": {
          "description": "\"2.0\"",
          "type": "string"
        },
        "method": {
          "description": "Chain RPC method, e.g. eth_blockNumber, eth_call, eth_getBalance (EVM) or getSlot, getAccountInfo (Solana).",
          "type": "string"
        },
        "params": {
          "description": "Method-specific params.",
          "type": "array"
        }
      },
      "required": [
        "jsonrpc",
        "id",
        "method"
      ],
      "type": "object"
    }
  },
  "type": "object"
}

Output schema

{
  "properties": {
    "example": {
      "properties": {
        "id": {
          "type": [
            "string",
            "number"
          ]
        },
        "jsonrpc": {
          "type": "string"
        },
        "result": {
          "type": "object"
        }
      },
      "type": "object"
    }
  },
  "type": "object"
}