the402 endpoint detail

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chain-tools.use.x402atlas.com merkle verify

https://chain-tools.use.x402atlas.com/merkle/verify

needs params

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

Bazaar lists this endpoint, but when we called it we got HTTP 400 instead of a payment challenge.
Price
5000 atomic
Network
not established
Pay to
-
Spec dialect
-
Transport
-
HTTP method
POST
Response latency
223 ms
Payment options
0 usable of 0
Last checked
2026-08-15T14:23:27.135Z (7d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fchain-tools.use.x402atlas.com%2Fmerkle%2Fverify"