Vellium & Co

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EVM & Solana Utility Tools

Keccak Merkle proof verifier — validate inclusion plus exact leaf index and count proof shape for the Atlas sorted-pair tree profile.

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
269 ms
Price
$0.005 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
4
Category
Developer tools and utilities
Address
https://chain-tools.use.x402atlas.com/merkle/verify

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/f1d0c4d03178.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].