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CoinOpSelect Merkle Leaf Lookup API
x402
CoinOpSelect Merkle Leaf Lookup API is a paid API for AI agents from coinop.publicvm.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).
Computes or retrieves a Merkle leaf hash for a given account, index, and amount, used in on-chain Merkle proof workflows on Base.
Price / call$0.01
Success—
StatusUnknown
How this service works
Paid on-chain token, wallet, contract and research data over x402 on Base.
Output
Returns a JSON object containing the Merkle leaf as a hex string and a query identifier string. The leaf can be used directly as input to Merkle proof generation or on-chain contract verification calls.
Example use cases
Airdrop claim eligibility check
“Can you fetch the Merkle leaf hash for wallet 0xDeF456... at leaf index 12 with amount 500 so I can verify this address is included in the airdrop distributor on Base?”
Whitelist Merkle proof generation
“I need to generate a Merkle proof for a whitelist contract — can you retrieve the Merkle leaf for account 0x789Abc... at index 3 with amount 250?”
On-chain token distribution verification
“Fetch the Merkle leaf for account 0x111Bbb... at index 0 with amount 10000 so I can verify the leaf hash matches what's stored in the distributor contract on Base.”
Technical details
Endpoint
GEThttps://coinop.publicvm.com/api/v1/merkle/leaf?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to compute or retrieve a Merkle leaf hash for a specific account and amount at a given index, particularly in the context of Merkle distributor contracts, airdrop claims, or whitelist proofs on the Base blockchain. Prefer this over generic Ethereum RPC calls when you need a pre-computed leaf hash without implementing the hashing logic yourself.
Side effects
- Missing required parameters (index, account, or amount) returns a 400 error
- Invalid account address format causes a query failure
- Leaf index out of range returns an empty or null leaf
- Payment not completed via x402 results in a 402 Payment Required response
- Network or RPC issues on Base may cause lookup failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"leaf": "hex",
"query": "merkle-leaf"
}
}Tags
x402
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