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Ethereum Mainnet Block by Number (eth_getBlockByNumber)
x402
Ethereum Mainnet Block by Number (eth_getBlockByNumber) 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 a specific Ethereum mainnet block by block number or 'latest' via eth_getBlockByNumber
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, chain='ethereum', method='eth_getBlockByNumber', and a result object containing the full block header: hash, number, miner, nonce, gasUsed, gasLimit, timestamp, baseFeePerGas, blobGasUsed, excessBlobGas, stateRoot, parentHash, transactionsRoot, receiptsRoot, withdrawalsRoot, logsBloom, extraData, mixHash, sha3Uncles, difficulty, size, uncles, and parentBeaconBlockRoot.
Example use cases
Monitor latest Ethereum block activity
“Can you fetch the latest Ethereum mainnet block and tell me the block number, miner, gas used, and base fee per gas?”
Look up historical block by number
“I need the full details of Ethereum mainnet block number 26,418,616 — including the hash, timestamp, state root, and transactions root.”
Audit gas usage for a specific block
“Pull up Ethereum block 0x18f1ab8 and tell me how much gas was used versus the gas limit, and what the base fee per gas was.”
Technical details
Endpoint
GEThttps://api.arysphere.com/v1/ventures/x402_eth_reads_v1/eth_mainnet_eth_get_block_by_number?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need detailed Ethereum mainnet block header data — including miner, gas metrics, timestamps, state root, and fee info — for a specific block number or the latest block. Prefer this over general Web3 RPC providers when you need a simple pay-per-call HTTP GET with no node setup, API key management, or rate-limit negotiation.
Side effects
- Invalid block number format returns an error
- Block number ahead of chain tip returns null result
- Network congestion may cause slow response
- Malformed or missing 'block' parameter causes bad request
- Service unavailable if Ethereum node is down
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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