the402 endpoint detail

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x402financialdata.com multi-balance

https://www.x402financialdata.com/multi-balance

answers 402

Native ETH balance for up to 20 wallet addresses in one call, from Etherscan's V2 API -- a portfolio-style batch lookup instead of N separate /wallet-balance calls. Not address-scoped in the path; pass addresses as a comma-separated query param. $0.01/call.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0xe4181c7de066959bcca010525304ba68a84768e0
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
74 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:26:07.672Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fwww.x402financialdata.com%2Fmulti-balance"