Claim Contract Builder

WHAT IT DOES

Claim Contract Builder gives developers and project teams a streamlined way to deploy claim-based token distribution contracts using a factory pattern. It reads factory contract state, deployed claim contract addresses, token configuration, deployment parameters, and chain state for gas estimation. You can deploy new claim contracts with fully customizable parameters including token address, Merkle root (representing the list of eligible claimants and their allocations), claim window duration, and owner address. The tool estimates gas costs before deployment, shows you the deployed contract address after confirmation, and provides transaction explorer links. Instead of manually writing and deploying claim contracts for each distribution event, you use a factory that handles the deployment logic, reducing errors and saving time.

HOW TO USE

Connect your EVM wallet. Enter the claim factory contract address and token address you want to use. Provide the Merkle root (hex string) that represents your list of eligible claimants and their claim amounts. Set the claim window duration in seconds (e.g., 2592000 for 30 days) during which claims can be made. Optionally set an owner address (defaults to your wallet). Use "Estimate gas" to see the expected gas cost before committing. Click "Deploy claim contract" to deploy a new claim contract—this requires the factory to have sufficient allowance for the token amount to be distributed. After confirmation, the tool displays the deployed contract address and links to the explorer. The generated claim contract supports claiming via Merkle proofs, checking claim status, and withdrawing remaining tokens after the claim window expires.

TECHNICAL APPROACH

This tool uses a factory contract pattern to deploy claim contracts, avoiding the need to write and deploy each contract individually. It calls deployClaimContract() on the factory with all parameters—token address, Merkle root (bytes32), claim window (uint256), and owner address—which deploys a new claim contract instance via CREATE2 or standard deployment. The tool queries the factory's state using ethers v5.7.2, reads deployed claim contract addresses from events, and estimates gas using estimateGas.deployClaimContract() to provide cost transparency before transaction submission. All RPC calls are wrapped in a robust error handler that extracts the actual failure reason from Ethers error objects, digging three levels deep to avoid showing "[object Object]" when a transaction reverts. For transaction costing, it uses receipt.effectiveGasPrice post-EIP-1559 rather than tx.gasPrice, which overstates actual spend. The tool also checks token allowance before deployment, providing clear error messages for insufficient approvals, and displays the deployed address by parsing the ClaimContractDeployed event from the transaction logs.

WHAT IT CANNOT SEE

This tool cannot verify the security or correctness of the generated claim contract code, nor guarantee that the claim logic will function as expected. It cannot audit the factory implementation or ensure that the claim contract follows best practices. It cannot detect whether the factory contract has been tampered with or deployed with malicious intent. It cannot generate Merkle proofs—proofs must be generated off-chain and provided to claimants separately. The tool deploys contracts based on the factory's implementation, but it does not guarantee that the factory is secure or that the deployed contracts will behave as intended. Users must verify the factory contract code, audit reports, and the correctness of the Merkle root independently.

PLEASE NOTE

This tool supports EVM‑compatible chains only (Ethereum, Goerli, Sepolia, Arbitrum, Optimism, Polygon). Solana, Tron, Starknet, SUI, TON, Aptos, Bitcoin, Cosmos, and XRP are not supported. This is a read‑write tool that requires signing transactions—always verify the factory contract address, token address, Merkle root, and claim window before approving. No contract addresses are hardcoded; you paste the factory contract you are using, so you are responsible for verifying its safety and ensuring it implements the expected claim contract deployment interface. The tool is free and open under the BotGentz PLAYBOOK‑C specification.