rpc.nodeflare.app balances x402

https://rpc.nodeflare.app/data/balances/x402

answers 402

Multi-chain balances API: native + ERC-20 token balances for one address across up to 23 EVM chains (Ethereum, Base, Arbitrum, Optimism, BNB, and young chains like Robinhood, Plasma, Ink that Alchemy/Moralis omit) in a single request. Pay per call in USDC, no account or API key - built for AI agents. Priced about $0.0003 per chain.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.

Price: $0.0069
Network: base
Pay to: 0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: POST
Response latency: 155 ms
Payment options: 6 usable of 6
Last checked: 2026-08-10T09:11:15.912Z (5d ago)
Category: finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Frpc.nodeflare.app%2Fdata%2Fbalances%2Fx402"