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Api Endpoint

Block header by block hash

Block header by block hash — Genesis402 / UnyKorn Operator Network

Open interactive test console

Offering

Provider
twin.unykorn.org
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://twin.unykorn.org/evm-block-by-hash
MIME type
application/json
First seen
2026-10-16T01:52:52.778Z
Last seen
Tags
EVM, RPC, onchain data, multi-chain, Block

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
Payment option 2
0.003 USDC
Atomic price: 3000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 3
0.003 USDC
Atomic price: 3000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "3000",
    "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "3000",
    "payTo": "52EqTZigRAnBphuYAuREjQJx5H5ryyc1RETpDR2dZFQp"
  }
]

Observed health

Status
Healthy
Latest latency
97 ms
Average latency
667 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

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "POST"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json"
      ]
    },
    "body": {
      "type": "object",
      "properties": {
        "params": {
          "type": "object",
          "properties": {
            "hash": {
              "type": "string",
              "pattern": "^0x[0-9a-fA-F]{64}$",
              "description": "0x-prefixed 64-hex hash"
            },
            "chain": {
              "type": "string",
              "enum": [
                "ethereum",
                "base",
                "polygon",
                "arbitrum",
                "optimism",
                "bsc",
                "avalanche",
                "gnosis",
                "linea",
                "scroll"
              ],
              "description": "EVM chain: ethereum | base | polygon | arbitrum | optimism | bsc | avalanche | gnosis | linea | scroll (default base)"
            }
          },
          "required": [
            "hash"
          ]
        }
      },
      "required": [
        "params"
      ]
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ]
}

Output schema

{
  "type": "object"
}