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Base Blockchain Block Lookup
x402
Base Blockchain Block Lookup is a paid API for AI agents from tripguard-fare-intel.onrender.com, paid per call via x402, $0.12/call, status unknown (last checked 2026-10-11).
Retrieves block metadata (hash, number, gas used, timestamp, transaction count) for a specified block height on the Base blockchain, or the chain head if no block number is provided.
Price / call$0.12
Success—
StatusUnknown
How this service works
Real-time airfare intelligence for AI travel-booking agents: flight price-drop prediction, fare-fraud and deal-legitimacy verification, and verified booking links for any route and date. Pay-per-call in USDC on Base. No API key.
Output
Returns a JSON object containing the block hash, block number, gas used, ISO 8601 formatted timestamp, Unix timestamp, and transaction count for the requested block (or the chain head if no block number was specified).
Example use cases
Monitor latest Base chain head
“What's the current head block on Base right now — give me the block number, hash, and timestamp?”
Audit gas usage for specific block
“Can you pull up block 34500000 on Base and tell me how much gas was used and how many transactions it contained?”
Verify block timestamp for audit trail
“I need to confirm the exact timestamp and hash for block 34123456 on the Base network for a compliance report.”
Technical details
Endpoint
POSThttps://tripguard-fare-intel.onrender.com/chain/block?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need lightweight, pay-per-call block metadata from the Base blockchain without managing an RPC node or API key. Prefer it for agent workflows that need on-demand block lookups (e.g. verifying timestamps, auditing gas, checking transaction volume) on Base specifically, rather than Ethereum mainnet or other chains.
Side effects
- Block number does not yet exist on chain — returns an error or empty result
- Invalid block number format (non-integer or negative) — schema validation error
- Network or RPC node unavailability — service timeout or 5xx error
- Payment failure in USDC — 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| number | integer | Block height. Omit for the chain head. |
Output
Schema · Response
{
"type": "json",
"example": {
"hash": "0xabababababababababababababababababababababababababababababababab",
"number": 34567890,
"gasUsed": "12345678",
"iso8601": "2026-08-30T12:00:00.000Z",
"timestamp": 1787750000,
"transactions": 142
}
}Tags
x402
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