Foundry x402 data endpoints

Pay-per-call data products over x402 (HTTP 402 + USDC). No account or API key required.

Skills

• Contract Code Identity
  Check a deployed contract's code identity - keccak256 code hash read from the node via eth_getProof, confirmed on a second independent node, plus EIP-1167/1967/1822 proxy resolution.
• Medicare Claim Line Check
  Check a Medicare claim line - code validity, practitioner MUE unit cap, and locality fee-schedule allowed amount from current CMS files, with FDA NDC status.
• Settlement Finality Check
  Check whether an x402 payment settled and is final - settled/reverted/pending/replaced, confirmations, on-chain finality, and that the right amount reached the right address. Base and Ethereum.
• Surplus Sold Comps
  Sold-price comps for US government surplus - closed GSA auction lots matching an item query, with hammer prices, bidder counts, dates and locations, from a daily-archived lot history.
• Wallet Revenue Authenticity
  Check if an x402 seller's revenue is real or wash-traded - distinct payers, repeat share, self-pay and round-trip flags from on-chain Base USDC settlements.

How to call

https://api.darangilau.com

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