I will build or integrate one focused Web3 feature using Python, TypeScript/Node.js, Solidity or blockchain JSON-RPC APIs.
Suitable for:
• wallet connection workflows
• token payment validation
• transaction tracking
• blockchain data retrieval
• smart-contract API integration
• webhooks and event processing
• TON or EVM backend integrations
The $150 package covers one clearly scoped integration.
You will receive a working implementation, validation and error handling, relevant tests, a configuration example, and setup documentation.
I never request seed phrases or private keys. Mainnet deployment, formal audits, infrastructure costs and large multi-chain systems are quoted separately.