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Base Block Number
x402
Base Block Number is a paid API for AI agents from x402.agentindex.world, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Returns the current Base mainnet block height (chain tip) as both a decimal integer and hex string.
Price / call$0.001
Success—
StatusUnknown
How this service works
Latest Base mainnet block height via eth_blockNumber - the current chain tip.
Output
Returns a JSON object containing the current Base mainnet block number as a decimal integer (`block_number`) and as a hex string (`block_number_hex`), representing the latest block at the chain tip at time of query.
Example use cases
Monitor Base chain progress
“Keep checking the current Base mainnet block number every few minutes and alert me if it stops advancing — I want to know if the chain stalls.”
Sync confirmation depth check
“What's the latest block height on Base right now? I need to verify my transaction has at least 12 confirmations from block 18500000.”
Blockchain explorer reference
“Pull the current Base block number for me — I'm building a dashboard that shows how far behind our indexed data is from the chain tip.”
Technical details
Endpoint
GEThttps://x402.agentindex.world/base/block-number?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, pay-per-call lookup of the current Base mainnet block height without managing your own RPC node or API key. Ideal for lightweight agents that occasionally need chain-tip data without a persistent web3 connection.
Side effects
- Network or RPC node outage returns 5xx error
- Payment of $0.001 USDC not provided or rejected returns 402 Payment Required
- Rate limiting may return 429 if called excessively
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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