Vextorium EVM Block Header Lookup

x402

Vextorium EVM Block Header Lookup is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-15).

Fetches block header data (hash, parent, timestamp, producer, gas metrics, base fee, tx count) by block number or tag across 12 EVM-compatible chains

Price / call$0.003

Seller volume →—

Success—

StatusUnknown

How this service works

558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.

Output

Returns a JSON object with block number, hash, parent hash, network name, ISO timestamp, producer address, used gas, gas limit, gas usage percentage, block size in bytes, transaction count, base fee in gwei, and optionally transaction hashes.

Example use cases

Monitor latest block gas fees

“What's the current base fee in gwei and gas usage percentage of the latest block on Ethereum right now?”

Verify block producer on Arbitrum

“Who produced block 200000000 on Arbitrum, and what was its timestamp and transaction count?”

Audit finalized block details on Polygon

“Fetch the finalized block header on Polygon — I need the hash, parent hash, gas limit, and whether you can include the list of transaction hashes.”

Technical details

Endpoint

POSThttps://api.vextorium.com/v1/evm-block?utm_source=zero.xyz

When to prefer

Use this endpoint when you need structured, normalized block header data across multiple EVM chains in a single unified API — especially useful for multi-chain monitoring, blockchain analytics, or when you need gas metrics and block metadata without running your own node or dealing with raw RPC calls.

Side effects

Invalid or non-existent block number returns null fields or an error
Unsupported network name causes validation failure
Block tag (latest/safe/finalized) unavailable on some chains returns error
Malformed request body (wrong bodyType or missing required fields) returns 400
Network congestion or node unavailability causes timeout or 5xx error

Input

Schema · Request body

Field	Type	Description
number	string
network	string	Chain (default base)
tx_include	boolean

Output

Schema · Response

{
  "type": "json",
  "example": {
    "date": "2026-10-02T20:04:57+00:00",
    "hash": "0xb6ef30f50b707c8ba2bfff9b57a94ae64540545506de1ac20db38d0216ad80be",
    "number": 52091075,
    "parent": "0x29759d0a3f90560c64e85952a84b1eef7d97f3d039e553cfeb9ceba69378e9a5",
    "network": "base",
    "producer": "0x4200000000000000000000000000000000000011",
    "used_gas": 41906338,
    "gas_limit": 400000000,
    "size_bytes": 189493,
    "transactions": 156,
    "base_fee_gwei": 0.005,
    "gas_usage_pct": 10.48
  }
}

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