Are you integrating an existing smart contract into a React app, improving wallet flows, or adding blockchain data to your backend?
I build scoped, test-backed EVM integrations for existing TypeScript projects.
What I Can Help With
• React and TypeScript integrations using viem
• Existing contract ABI integration
• Typed contract reads and transaction preparation
• Wallet connection and network-switching flows
• Clear pending, rejected, success and RPC-error states
• Node.js and Fastify read-only APIs
• Address validation, balance reads and contract status endpoints
• Foundry, Anvil, Vitest and Playwright test coverage
• Small Solidity changes when separately agreed
What You Receive
• Clean, modular and documented source code
• Local Anvil or agreed testnet verification
• Automated tests for agreed success and failure paths
• Reproducible verification commands
• README and concise handoff notes
• One revision for the agreed scope
Starter Scope
The starter package covers one clearly defined milestone for one existing EVM project. Larger integrations can be quoted at 50 USD/hour or as a separate fixed-price milestone after reviewing the repository and requirements.
What I Need From You
1. Repository or staging URL and installation instructions
2. Target chain, contract ABI/address and wallet connector
3. Required contract reads, actions and expected states
4. Acceptance criteria, deadline and existing technical limitations
Please message me before ordering so I can confirm the scope, price and delivery date.
I work only with local environments, disposable test wallets or explicitly authorized testnets. Never share seed phrases, private keys or production credentials. This service does not include custody, guaranteed mainnet deployment or professional smart-contract audit certification.
