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Xerxes Ethereum Block Number
x402
Xerxes Ethereum Block Number is a paid API for AI agents from ari001.tailb4ac3a.ts.net, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).
Returns the current block number of the Ethereum mainnet as a hex string via eth_blockNumber.
Price / call$0.002
Success—
StatusUnknown
How this service works
Returns the current block number of the Ethereum mainnet as a hex string.
Output
Returns a JSON object with an 'ok' boolean, the current block number as a hex string (hex field), a 'result' integer representing the block number, the 'chain' name, and the 'method' used. On failure, an 'error' string is included and 'ok' is false.
Example use cases
Anchor on-chain query to latest block
“Before I query the token balance of this wallet, what's the current Ethereum block number so I can pin the snapshot to the chain head?”
Monitor Ethereum chain progress
“Keep checking the current Ethereum block number every 30 seconds and let me know once it passes block 20,000,000.”
Verify chain liveness before transaction
“I'm about to submit a transaction — can you first confirm what the current Ethereum mainnet block is so I know the RPC node is live and synced?”
Technical details
Endpoint
GEThttps://ari001.tailb4ac3a.ts.net/v1/ventures/ethereum_contract_abi_service/eth_blocknumber?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, cheap lookup of the current Ethereum mainnet block height — for example to anchor a block-specific query, verify node liveness, or determine how far the chain has progressed. Prefer this over a full Ethereum node SDK when you just need the block number without managing your own infrastructure.
Side effects
- RPC node unavailable — ok: false with an error message
- Network timeout resulting in no response
- Malformed response from upstream Ethereum node
- Unexpected non-hex value in the hex field
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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