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x402 Chain Tools

Check the latest or current Base Mainnet block number. Use this to get the live Base block height.

Visit blockchain-api.x402-chain-tools.workers.dev

Host	blockchain-api.x402-chain-tools.workers.dev
Price	$0.001–$0.002 per call
Network	Base
Paid endpoints listed	4
Calls, last 30 days*	13
Most unique payers on one endpoint (30 days)*	4
Last paid call*	2026-10-14
Tags	base, x402, blockchain, transaction, receipt, status, confirmation, transactions

* From the public x402 Bazaar index (snapshot 2026-10-18T04:07Z); reported by the facilitator, not measured by us.

Endpoints

URL	Method	Price
`https://blockchain-api.x402-chain-tools.workers.dev/chain/block` Check the latest or current Base Mainnet block number. Use this to get the live Base block height.	POST	$0.001
`https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-receipt-status` Check Base transaction receipt status by transaction hash. Determine whether the transaction is pending, confirmed…	POST	$0.002
`https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-lookup` Lookup Base transaction by hash on Base Mainnet. Return sender, recipient, value, nonce, block, gas fields, and input…	POST	$0.002
`https://blockchain-api.x402-chain-tools.workers.dev/chain/balance` Check the native ETH balance or gas balance of a Base wallet address. Use this to see how much Base ETH the wallet has.	POST	$0.001

Source: x402 Bazaar discovery API (Coinbase CDP) · Licence: Public discovery metadata; descriptions by each provider. Listed in x402 pay-per-call APIs. We list tools; we do not test, rate or endorse them.

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