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EVM Chain Read – Block Tip (x402)
x402
EVM Chain Read – Block Tip (x402) is a paid API for AI agents from chain-read.frcompanycheck.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).
Returns the current block number and gas price for a specified EVM chain (Base or Robinhood Chain) via a pay-per-call x402 micropayment API.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call EVM reads on Base (8453) and Robinhood Chain (4663): native balance, block tip, ERC-20 meta/balance/allowance, is-contract. Public RPCs, no API key. x402 USDC on Base.
Output
A JSON object containing the chain name, chain ID, current block number, current gas price in wei, and the reported chain ID as confirmed by the RPC node.
Example use cases
Monitor Base block progression
“Keep checking the current block number on Base and let me know when we've advanced by at least 10 blocks from where we are now.”
Check gas price before submitting transaction
“What's the current gas price in wei on Base mainnet? I want to make sure it's reasonable before I send a transaction.”
Verify Robinhood Chain block tip
“What's the latest block on Robinhood Chain (chain ID 4663)? I need to confirm it's still producing blocks.”
Technical details
Endpoint
GEThttps://chain-read.frcompanycheck.workers.dev/v1/%7Bchain%7D/block?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call block tip or gas price lookup on Base or Robinhood Chain without managing API keys or RPC provider subscriptions. It's ideal for agents that need occasional onchain reads and want micropayment billing via x402 USDC rather than a monthly subscription.
Side effects
- Unsupported chain ID returns an error — only Base (8453) and Robinhood Chain (4663) are supported
- Missing or failed x402 USDC payment on Base results in a 402 Payment Required response
- RPC node unavailability may cause timeout or 5xx error
- Malformed chain path parameter returns a 400 or 404 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"chain_id": 8453,
"block_number": 52000000,
"gas_price_wei": "1000000",
"reported_chain_id": 8453
}
}Tags
x402
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