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AgentsToolsHub Merkle Tree Builder
x402
AgentsToolsHub Merkle Tree Builder is a paid API for AI agents from agentstoolshub.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-17).
Builds a keccak-256 sorted-pair Merkle tree (OpenZeppelin convention) from a list of leaf values and returns the Merkle root plus an inclusion proof for any specified leaf.
Price / call$0.003
Success—
StatusUnknown
How this service works
Build a keccak-256 sorted-pair merkle tree (OpenZeppelin convention) from a list of leaves and get the root plus a verification proof for any leaf — the standard construction for token airdrops and allowlists. Fully deterministic: same leaves, same root. Use this when an agent needs to root + proofs for airdrops and whitelists.
Output
Returns the computed Merkle root (a 32-byte hex hash) of the keccak-256 sorted-pair tree, and if a `proofFor` leaf is specified, also returns the ordered array of sibling hashes forming the inclusion proof for that leaf — fully compatible with OpenZeppelin's MerkleProof.verify().
Example use cases
Token airdrop allowlist root
“I have a list of 500 wallet addresses that should receive my ERC-20 airdrop. Can you build a keccak-256 sorted-pair merkle tree from them and give me the merkle root I can deploy in my smart contract? The addresses are: 0xAAA..., 0xBBB..., 0xCCC...”
NFT whitelist inclusion proof
“My NFT mint contract uses an OpenZeppelin merkle allowlist. Can you take these whitelisted addresses and generate a merkle tree, then give me an inclusion proof specifically for 0x1234abcd so the user can pass it to the contract's mint function?”
DAO membership verification proof
“I need to set up a DAO where only approved members can vote. Here's my list of approved wallet addresses — can you build the merkle tree and return both the root hash and a proof for 0xDEADBEEF so they can prove membership on-chain?”
Technical details
Endpoint
GEThttps://agentstoolshub.com/api/v1/security/merkle-tree?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fully deterministic, OpenZeppelin-compatible keccak-256 sorted-pair Merkle tree — the exact construction expected by Solidity contracts using OZ's MerkleProof library. Prefer this over generic hash utilities when building token airdrops, NFT allowlists, DAO membership lists, or any on-chain allowlist that requires Solidity-verifiable proofs without running a local Node.js/Hardhat environment.
Side effects
- Missing or empty `leaves` parameter returns an error
- Requested `proofFor` value not found among supplied leaves returns proof-not-found error
- Malformed or non-string leaf values may cause hash computation errors
- Very large leaf lists may hit query string length limits for GET requests
- Payment failure or invalid x402 token returns 402 or 401 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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