Introduction Hello everyone! Are you building AI Agents? I'm sure many of you are creating various workflows to improve business efficiency. While know-how and sample code for AI Agents are increasing, implementation examples of AI Agents that can interact with the blockchain are still relatively few, don't you think? In this article, I've explained the construction method and technical stack of an AI Agent that operates digital assets on the Solana blockchain! I hope you find this useful as an example! What I Built Overview I created a chat application where you can perform operations on Solana DevNet (SOL transfer, NFT minting, DeFi Swap, smart contract calls) using natural language! When a user enters natural language in the chat screen, the backend Mastra AI Agent interprets the intent and calls the appropriate Solana tool ( transferSolTool / mintNftTool / jupiterSwapTool , etc.). Instead of a signed transaction , it returns an unsigned serialized transaction to the frontend.…