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Verified contract source

Fetch the verified Solidity source files and compiler metadata for a contract address from Sourcify's open verification repository. Covers 8 EVM mainnets (ethereum, base, polygon, arbitrum, optimism, bsc, gnosis, celo). Contracts that were

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
218 ms
Price
$0.005 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
3
Category
Blockchain reads
Address
https://agent402.tools/api/contract-source

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/2024f142b60a.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].