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Blockchain Block Number Lookup
x402
Blockchain Block Number Lookup is a paid API for AI agents from x402-gateway-production-1f21.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).
Returns the current block number for a specified blockchain network (Base or Ethereum) via a machine-payable x402 API.
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-payable x402 utilities for hashing, Base64, UUID generation, unit and timezone conversion, realtime crypto market data, webpage/document extraction, URL-to-Markdown, metadata, RAG ingestion and deterministic website change detection.
Output
Returns a JSON object containing the current block number for the requested blockchain network (Base or Ethereum), along with a status field indicating readiness. The block number reflects the most recently mined block at the time of the request.
Example use cases
Monitor Base chain block height
“Can you tell me the current block number on Base so I can check if my transaction has been confirmed?”
Track Ethereum block progression
“What block is Ethereum on right now? I want to know how far along the chain is for a time-sensitive smart contract interaction.”
Sync blockchain indexing position
“Fetch the latest block number on Base so I can figure out where my indexer is lagging behind the live chain.”
Technical details
Endpoint
POSThttps://x402-gateway-production-1f21.up.railway.app/chain/block-number?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, real-time block number lookup for Base or Ethereum without running your own node, and you are operating in a machine-payable (x402) environment. Ideal for agents that need on-chain timing references, confirmation checks, or synchronization points at low cost ($0.001 USDC per call).
Side effects
- Invalid network value (not 'base' or 'ethereum') returns a validation error
- Payment failure via x402 protocol results in 402 Payment Required response
- Network connectivity issues to the blockchain node may return a timeout or error
- Missing required 'network' field in request body may cause a 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"status": "ready"
}
}Tags
x402
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