findContractDeployer -SDK

Finds the address that deployed the provided contract and block number it was deployed in.

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Finds the address that deployed the provided contract and the block number it was deployed in.



This method performs a binary search across all blocks since genesis and can take a long time to complete. This method is a convenience method that will eventually be replaced by a single call to an Alchemy endpoint with this information cached.


contractAddressstringThe contract address to find the deployer for.


Promise<DeployResult>objectReturns the address that deployed the provided contract and the block number it was deployed in.

DeployResult response object parameters

deployerAddressstringThe address of the contract deployer, if it is available
blockNumbernumberThe block number the contract was deployed in

Example Request and Response

Prerequisite: You will need to install the Alchemy SDK before making requests with it.

The commands for installing it using npm or yarn are given below:

npm install alchemy-sdk
yarn add alchemy-sdk


Here is an example of how to make a findContractDeployer request using the Alchemy SDK:

// Imports the Alchemy SDK
const { Alchemy, Network } = require("alchemy-sdk");

// Configures the Alchemy SDK
const config = {
    apiKey: "alchemy-replit", // Replace with your API key
    network: Network.ETH_MAINNET, // Replace with your network

// Creates an Alchemy object instance with the config to use for making requests
const alchemy = new Alchemy(config);

const main = async () => {
    //Assign the contract address to a variable
    let address = "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d"

    //The response fetches the contract deployer of the above address
    let response = await alchemy.core.findContractDeployer(address)

    //Logging the response to the console



And here is an example of what a successful response to this request might look like:

  deployerAddress: '0xaba7161a7fb69c88e16ed9f455ce62b791ee4d03',
  blockNumber: 12287507

Code Sandbox

You can test out the findContractDeployer method using the code sandbox below:

Use Cases

Here are some common use cases for findContractDeployer method:

  • Contract verification: When a new contract is deployed on a blockchain, it is important to verify the identity of the deployer to ensure that the contract was deployed by a trusted source. By using the findContractDeployer method, developers can easily verify the deployer of a contract and ensure that the contract is legitimate.

  • Security auditing: Security auditors can use the findContractDeployer method to identify potential security vulnerabilities in a smart contract by analyzing the behavior of the deployer. If the deployer is identified as a potential threat, additional security measures can be implemented to prevent unauthorized access to the contract.

  • Contract management: Smart contracts are often used to automate business processes and manage digital assets. By using the findContractDeployer method, contract managers can identify who has deployed a particular contract and ensure that it is being used in accordance with the terms and conditions agreed upon by all parties.