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Api Endpoint

EVM Block

Fetch a block header by number, hash, or "latest" on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: timestamp, miner, gas used/limit, base fee, transaction count, size. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"base","block":"latest"}

Open interactive test console

Offering

Provider
keyronne.com
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://keyronne.com/api/chain-block
MIME type
application/json
First seen
2026-10-16T01:50:06.715Z
Last seen
Tags
blockchain, Block, EVM, Onchain, header

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": "0xB86F95EF5FA904318Ea9Df3b59AdCe099b478fC4"
  }
]

Observed health

Status
Healthy
Latest latency
572 ms
Average latency
386 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

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "POST"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json"
      ]
    },
    "body": {
      "type": "object",
      "required": [
        "chain"
      ],
      "properties": {
        "chain": {
          "type": "string",
          "enum": [
            "ethereum",
            "base",
            "arbitrum",
            "optimism",
            "polygon",
            "bsc"
          ]
        },
        "block": {
          "description": "Block number, \"latest\" (default), or a 0x block hash."
        }
      }
    }
  }
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "properties": {
        "body": {
          "properties": {
            "block": {
              "description": "Block number, \"latest\" (default), or a 0x block hash."
            },
            "chain": {
              "enum": [
                "ethereum",
                "base",
                "arbitrum",
                "optimism",
                "polygon",
                "bsc"
              ],
              "type": "string"
            }
          },
          "required": [
            "chain"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "type": "object"
    },
    "output": {
      "properties": {
        "baseFeeGwei": {
          "type": "string"
        },
        "chain": {
          "type": "string"
        },
        "gasUsed": {
          "type": "integer"
        },
        "hash": {
          "type": "string"
        },
        "number": {
          "type": "integer"
        },
        "time": {
          "type": "string"
        },
        "timestamp": {
          "type": "integer"
        },
        "transactionCount": {
          "type": "integer"
        }
      },
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}