KITE AI (@GoKiteAI): Building dApps on Kite: A Hands-On Guide

Building dApps on Kite: A Hands-On Guide In the previous posts of THE AGENT PLAYBOOK, we explored why AI agents need their own economic rails and what becomes possible when payments and coordination are treated as native primitives. We examined how agentic payments unlock new forms of execution, delegation, and collaboration on-chain. In this third post, we move from concepts to construction. The question is no longer why or what, but how. How do builders actually turn these ideas into working applications that can read and write on-chain state, execute transactions, and interact with economic infrastructure in practice? This article focuses on the hands-on side of Kite. We walk through building a real dApp on Kite Chain, starting with a simple Counter example and extending toward more complete Web3 application patterns. The goal is to give builders a concrete entry point for turning agent-native economic ideas into production-ready systems. If you’re planning to build real dApps on Kite Chain, the best way to learn is by doing. Kite’s docs include three sample reference dApps: Counter, Voting, and Token Minter. Together, they cover most of what you’ll need for real Web3 applications. This post walks through an end-to-end build of the Counter dApp with code snippets you can reuse on KiteAI Testnet. The other use cases can be built in a similar way, and we’ve included detailed links below: Voting dApp: https://docs.gokite.ai/kite-chain/4-building-dapps/voting-dapp Token Minter dApp: https://docs.gokite.ai/kite-chain/4-building-dapps/token-minter What you’ll learn Setting up React applications for Web3 Connecting to MetaMask and other wallets Interacting with smart contracts using Ethers.js Handling transactions and user feedback Building responsive Web3 UIs Prerequisites Before building dApps: Complete the Smart Contract Development tutorials Have basic React knowledge Understand async/await JavaScript patterns Have a MetaMask wallet connected to KiteAI Testnet Have Ethers.js installed Counter dApp: Basic State Read + Write The Counter dApp shows how to read on-chain state, send a transaction, and update the UI. Step 1: Setup React application In your project directory, create a new React app using Create React App: Step 2: Create a Counter Component Replace the content of src/App.js with the following code: Important: Replace YOUR_DEPLOYED_CONTRACT_ADDRESS with the contract address you received when deploying your contract from the Smart Contract Development tutorials. Note: This example uses getCount() in the ABI. If your Counter contract exposes a public count variable instead of getCount(), update the ABI and call contract.count() accordingly. Step 3: Run the Frontend Start your React development server: Open your browser and navigate to the localhost URL. With MetaMask connected to KiteAI Testnet, you should see your counter value and a button to increment it. Here is the GitHub link: https://github.com/gokite-ai/kite_counter_dapp Optional: Deploy a Contract (ERC-20) on KiteAI Testnet Below is a walkthrough of how to deploy an ERC-20 contract on KiteAI Testnet using Remix IDE (beginner) or Foundry (advanced). This can be helpful if you want to extend the Token Minter flow or build token-based apps on Kite. Method 1: Deploying via Remix IDE Step 1: Add KiteAI Testnet to MetaMask Visit Chainlist for KiteAI Testnet Connect your MetaMask wallet Add KiteAI Testnet to your networks Step 2: Obtain test Kite tokens Visit the KiteAI Faucet Connect your MetaMask wallet Request 0.5 Kite tokens Step 3: Write the smart contract Open Remix IDE Create a new file named MyToken.sol Paste the following code: This contract uses OpenZeppelin's ERC-20 implementation to create a token named "MyToken" with the symbol "MTK". Step 4: Compile the contract Navigate to the "Solidity Compiler" tab in Remix Ensure the compiler version is set to 0.8.20 or higher Click "Compile MyToken.sol" Step 5: Deploy the contract Go to the "Deploy & Run Transactions" tab Set the environment to "Injected Provider - MetaMask" Ensure MetaMask is connected to KiteAI Testnet Enter the initial supply (e.g., 1000000 for 1 million tokens, adjusted for decimals as needed) Click "Deploy" Confirm the transaction in MetaMask Once deployed, your ERC-20 token will be live on the KiteAI Testnet. Method 2: Deploying via Foundry Step 1: Install Foundry If you haven't installed Foundry: Step 2: Initialize the project Step 3: Install OpenZeppelin Contracts Step 4: Configure remappings In foundry.toml, add: Step 5: Write the smart contract Create a new file at src/MyToken.sol: Step 6: Create deployment script Create a new file at script/Deploy.s.sol: Step 7: Set environment variables Create a .env file in the root directory: Replace your_private_key with your wallet's private key that holds Kite tokens. Security Warning: Never store or share your private key publicly. Step 8: Build and deploy After deployment, Foundry will provide the contract address and transaction details. This guide helps developers leverage KiteAI’s features to build and deploy efficient smart contracts, with the option to add advanced functionalities via OpenZeppelin. From here, you can expand into full token ecosystems, governance apps, marketplace flows, or agent-driven token logic. In the forthcoming blogs, we will share details of Kite architecture components and use cases that can be built on Kite.