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Merkle Proof Verifier
x402
Merkle Proof Verifier is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-29).
Verifies whether a given leaf and proof are valid against a specified Merkle root hash
Price / call$0.003
Success—
StatusUnknown
How this service works
Verify a merkle proof against a root — Genesis402 / UnyKorn Operator Network
Output
Returns a JSON object with an 'ok' boolean indicating whether the proof is valid, a 'type' field set to 'merkle-verify', and a 'receipt' object containing the transaction hash, amount paid in USD, and a unique receipt ID, plus a generated_at ISO8601 timestamp.
Example use cases
Smart contract audit proof check
“I have a Merkle root 0xabc123...def456 and need to verify that leaf 0x789fed...012345 is legitimately part of the tree using the proof path I pulled from the contract — can you confirm the proof is valid?”
NFT whitelist eligibility check
“Our NFT drop uses a Merkle whitelist. The root is 0xdeadbeef...cafe1234 — can you verify that address leaf 0x112233...aabbcc with its proof is actually on the whitelist before we let this user mint?”
Airdrop claim validation
“Before processing this airdrop claim, please verify that leaf hash 0xfeed00...deadc0de is genuinely included in the Merkle root 0x001122...334455 using the merkle proof provided by the user.”
Technical details
Endpoint
POSThttps://twin.unykorn.org/merkle-verify?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, pay-per-call cryptographic Merkle proof verification without running your own node or merkle library. Especially useful in agentic pipelines verifying NFT whitelists, airdrop eligibility, or on-chain data inclusion proofs where you need a receipt for audit purposes. Prefer this over rolling your own verification when you need tamper-evident receipts tied to each verification call.
Side effects
- Invalid leaf or root hash format (must be 0x-prefixed 64 hex chars) — returns 400 or validation error
- Malformed or insufficient proof array — returns ok: false
- Network or provider downtime — returns 5xx error
- Payment failure via x402 protocol — request blocked before processing
- Root/leaf mismatch with provided proof — returns ok: false with no error, just a negative result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| params | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"type": "merkle-verify",
"receipt": {
"tx_hash": "0x<64hex>",
"amount_usd": 0.25,
"receipt_id": "g402-<16hex>"
},
"generated_at": "<iso8601>"
}
}Tags
x402
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