For agents: JSON · MCP

api.x402node.dev

x402Grade BLast checked 3 hours ago

GET https://api.x402node.dev/chain/balance

Native coin balance for any address on Ethereum, Base, Arbitrum, Optimism or Polygon, optionally an ERC20 token balance with symbol and decimals. wallet balance, eth balance, erc20 token balance, check address balance, multichain balance Accepts payment on Base or Solana — either network works.

Price$0.004per chain read · paid in USD on Base

Uptime100%

4/4 probes · 49.5 ms

Score73Grade B

Paid usage, 30 days2payers · 2 calls

Warnings

Unusual seller traffic This seller's paid usage looks manufactured: paid calls to trivial endpoints like ping or uuid, or near-identical payer counts on every endpoint. Its usage counts half.

How to buy

This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.

curl -i -X GET "https://api.x402node.dev/chain/balance"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the response

Recent checks

Checked (UTC)	Result	Status	Time	Live price
2026-10-11 09:15	Valid 402	402	270 ms	$0.004
2026-10-11 04:45	Valid 402	402	47 ms	$0.004
2026-10-11 00:15	Valid 402	402	45 ms	$0.004
2026-10-10 19:45	Valid 402	402	52 ms	$0.004

Receipts

No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.

What a check proves