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Ethereum Mainnet Get Block By Number
x402
Ethereum Mainnet Get Block By Number is a paid API for AI agents from api.arysphere.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-17).
Fetches the full Ethereum mainnet block header for a given block number or the latest block.
Price / call$0.003
Success—
StatusUnknown
How this service works
ARYSPHERE sells AI-written verdicts on Base token contracts (a grade, a one-liner, a roast and the contract's facts) and Base/Ethereum chain reads, paid per call in USDC on Base over x402 v2. No account and no API key.
Output
Returns a JSON object with ok:true and a 'result' field containing the full Ethereum block header: block hash, number, miner, nonce, gas used, gas limit, base fee per gas, timestamp, parent hash, state root, transactions root, receipts root, logs bloom, mix hash, extra data, blob gas used, excess blob gas, withdrawals root, sha3Uncles, uncles array, and parent beacon block root.
Example use cases
Audit specific Ethereum block details
“Fetch me the full block header for Ethereum block 26300000 — I need to verify the miner, timestamp, and state root for a compliance audit.”
Monitor latest Ethereum block
“What does the latest Ethereum mainnet block look like right now? Give me its number, hash, gas used, and base fee per gas.”
Reconstruct historical block chain data
“I need the parent hash and transactions root for Ethereum block 25000000 so I can verify chain continuity in my indexing pipeline.”
Technical details
Endpoint
GEThttps://api.arysphere.com/v1/ventures/x402_eth_reads_v1/eth_mainnet_getblockbynumber?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need full Ethereum mainnet block header metadata for a specific block number or the latest block. Prefer it over transaction-level endpoints when you need block-level aggregates like gas totals, miner, timestamp, or state/receipts roots. Ideal for on-chain auditing, chain indexing, and block confirmation checks on Ethereum mainnet specifically (not Base or other L2s).
Side effects
- Invalid or non-existent block number returns an error or null result
- Block number in the future (beyond latest) returns null
- Malformed block parameter (non-hex, non-numeric, not 'latest') results in a bad request error
- Network or RPC node unavailability causes a timeout or 5xx error
- Payment not completed (x402 protocol) results in a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"chain": "ethereum",
"method": "eth_getBlockByNumber",
"result": {
"hash": "0x7538fe3a3bb34856c428edf3a6987a3f65c62e420473a509e0ef6e6446aac74b",
"size": "0x1d1af",
"miner": "0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97",
"nonce": "0x0000000000000000",
"number": "0x18f1ab8",
"uncles": [],
"gasUsed": "0x169e64a",
"mixHash": "0xae6149f7ce26ec6622dcee60ac3581ec58f376c6e617344d5d26fa6c79fcd84f",
"gasLimit": "0x3938700",
"extraData": "0x546974616e2028746974616e6275696c6465722e78797a29",
"logsBloom": "0x51ef0f6b5db85bb77c3f1b4de1e5dfafd5fedf65f45c753c161735b56e9beff5dc2cc73aa3bc2fafb97e7b917abf7dddc76b513d9f67ef73dfff2ff2bfefe4db7379d7e11ef186fae93b772fb47b47ffeee47771edfe1bba7176649acf657edef630646aa6ce2a61faf7faf32e606cc7dbffc2be70d6b6",
"stateRoot": "0xafc5c4791f953764c1240c4605600bffa650467910ff793a6ad44a44ec5bcdad",
"timestamp": "0x6ac905e3",
"difficulty": "0x0",
"parentHash": "0x49c6e74104654981bc3d21e12e9df6dcb4fad59c775948d9c43ecc662dbbeebe",
"sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"blobGasUsed": "0x140000",
"receiptsRoot": "0xd4d60719e4ba28f68eb398a5d861d44bfdb8a171742a756e0dbcc50250136183",
"requestsHash": "0xe3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"baseFeePerGas": "0x206e2cc9",
"excessBlobGas": "0xc0db577",
"withdrawalsRoot": "0x58b153ac66ecab07f3a899101e5e839985a01f22419ae16886f5321840808584",
"transactionsRoot": "0xc00956eb9e6da8da2db4d3a68333bf790f6fb92471b67121666f3a739a0b9e6c",
"parentBeaconBlockRoot": "0x0a477cb0499fc7f2a7d288b176f58f017ce1fc816648df3df102066289a3a962"
},
"service": "x402_chain_reads_v1.eth_getblockbynumber"
}
}Tags
x402
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