Base OnChain Agent is an open-source framework designed to deploy autonomous AI agents on Ethereum-like blockchains. It connects to blockchain nodes via Web3 and uses OpenAI's GPT models to interpret on-chain events such as token transfers or protocol-specific logs. The agent can process natural language prompts or predefined strategies to decide when to execute transactions, call smart contract functions, or respond to governance proposals. Developers can extend modules for custom event listeners, integrate off-chain data feeds, and manage private keys securely. This solution enables automated DeFi operations like liquidity provisioning, arbitrage trading, and portfolio rebalancing with minimal manual intervention.

onChain-agent provides a comprehensive toolset for building self-driving blockchain agents powered by AI. It continuously listens to on-chain events such as token transfers, governance proposals, or price feeds, then uses integrated large language models to interpret data, generate decision plans, and trigger transactions. The framework includes configurable strategy templates for DeFi arbitrage, market making, liquidity provision, and governance voting. It manages private keys securely, ensures risk checks, and logs all activities for auditability. Developers extend functionality via plugin modules supporting custom chains, data oracles, and advanced AI models. Real-time monitoring dashboards and alerts help users track performance.