x402mpp.sh
ExplorerDirectory
endpoint / cataloged

Check ETH and USDC (or any ERC-20) balance of an address on Base — pre-flight funding checks for payments and settlement

Check ETH and USDC (or any ERC-20) balance of an address on Base — pre-flight funding checks for payments and settlement.

https://quartermaster.surewhynot.app/v1/balance ↗
Statuscataloged
Networkeip155:8453
Schemeexact
First seen2026-08-30T15:59:44Z

Payment + protocol

MethodGET
Protocolx402 v2
Networkeip155:8453
Schemeexact
Asset0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Amount1000
Pay to0x5253666c40432f009ebd99908b9cd2a7fd1019cb
Evidencebazaar
First seen2026-08-30T15:59:44Z
Last seen2026-08-30T20:17:47Z

Discovery evidence

Coinbase CDP Bazaar ↗Machine record →Sitemap index →

Related on quartermaster.surewhynot.app

Expand a shortened or redirecting URL: follows the redirect chain server-side and returns every hop plus the final destisolana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpFull x402 endpoint audit: verifies the 402 challenge, payment fields, Bazaar discovery metadata, and the origin's discovsolana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpVerify an x402 settlement on Base OR Solana: pass a 0x transaction hash or a base58 signature, confirm it succeeded, decsolana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpFull x402 endpoint audit: verifies the 402 challenge, payment fields, Bazaar discovery metadata, and the origin's discoveip155:8453Check ETH and USDC (or any ERC-20) balance of an address on Base — pre-flight funding checks for payments and settlementsolana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpExpand a shortened or redirecting URL: follows the redirect chain server-side and returns every hop plus the final destieip155:8453