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Block Data (Base / Optimism / Ethereum Mainnet)
x402
Block Data (Base / Optimism / Ethereum Mainnet) is a paid API for AI agents from x402-audit.tatschluizguilherme.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).
Returns block metadata — number, hash, timestamp, baseFee, gas usage, transaction count, proposer, and size — for any block on Base, Optimism, or Ethereum Mainnet
Price / call$0.1
Success—
StatusUnknown
How this service works
Pay-per-call on-chain API for AI agents and developers: wallet audits, token safety audits (honeypot detection), live gas prices, token prices, transaction receipts, balances, ENS resolution, block data, ERC-20 allowances, transaction simulation, swap quotes and multicall batches — all computed on-chain via public RPCs (no external market API). Pay per request in USDC on Base via the x402 exact scheme (EIP-3009 transferWithAuthorization). No API key, no signup, no subscription.
Output
A JSON object containing: network name, block reference queried, found boolean, block number, block hash, unix timestamp, ISO timestamp, baseFee in wei, baseFee in gwei, gasUsed, gasLimit, transactionCount, block proposer address, and block size.
Example use cases
Pre-transaction network cost check
“Before I send a transaction on Base, can you grab the latest block and tell me the current base fee in gwei and how busy the network is?”
On-chain timestamp proof for a specific block
“I need the exact UTC timestamp and hash for block 19500000 on Ethereum mainnet — I want to verify when that block was mined.”
Optimism gas monitoring
“What's the current base fee and gas limit on Optimism? I want to know if the network is congested before I submit anything.”
Technical details
Endpoint
GEThttps://x402-audit.tatschluizguilherme.workers.dev/blockWhen to prefer
Use this endpoint when you need a real-time or historical network snapshot on Base, Optimism, or Ethereum Mainnet — especially to verify current gas costs (baseFee), confirm block timestamps for proof-of-time, or assess network congestion before submitting a transaction. It is the right choice over raw RPC calls when you want a single normalized REST call that returns all key block fields in one response without writing Web3 code.
Side effects
- Invalid chain value (not base/op/mainnet) returns error
- Block number not found or out of range returns found: false
- Malformed block hex reference returns parsing error
- RPC backend unavailable returns 500 or timeout
- Payment not included or invalid returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"hash": "0x941a93c4a4d7c5f2c14b0a4f3c6b1f7a0a5b4e3d2c1f0e9a8b7c6d5e4f3a2b1c0",
"block": "latest",
"found": true,
"number": 24400123,
"gasUsed": 8501234,
"network": "base",
"gasLimit": 30000000,
"proposer": "0x0000000000000000000000000000000000000000",
"sizeBytes": 81234,
"timestamp": 1786123456,
"parentHash": "0x8b3a1f9c7e2d4b6a8f0c3e5d7a9b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c",
"baseFeeGwei": 0.01,
"requestedAt": "2026-08-05T00:44:16.000Z",
"timestampIso": "2026-08-05T00:44:16.000Z",
"baseFeePerGasWei": "10000000",
"transactionCount": 212
}
}Tags
x402
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