chaintool

Problem Statement

Chaintool is an on-chain and dynamic toolchain built for CDP AgentKit that enables AI agents to discover and interact with smart contract tools dynamically. The system consists of a smart contract registry where anyone can register new tools, making them immediately available to all agents. Each tool is documented with descriptions and ABIs, allowing AI agents to understand and utilize them without prior knowledge.The key innovation is that agents can discover and use new tools while they are running, even if they didn't have access to them during initialization. Furthermore, agentic tools are now realized as on-chain assets, exposing them to the many applications of dApps. This creates an expandable ecosystem of agent-compatible smart contract tools that can grow organically.

Solution

The project is built using several modern web3 technologies and devtools.Smart ContractsSolidity (solc 0.8.28)Foundry for development and testingDeployed on Base Sepolia networkAgent SDKBuilt with Bun runtimeIntegrates with CDP (Coinbase Developer Platform)Uses OpenAI for the AI componentImplements HDKey wallets with Viem for blockchain interactions, derived from CDP Wallet seedAgentKit integration for agent behaviors, 4 actions for ChaintoolNillion SecretVault to save & restore used Chaintool history via 2 actionsFrontendWeb interface deployed on VercelUses OnchainKit for blockchain interactionsUsed React & Vite for developmentArchitectureCore registry contract (AgentToolRegistry) that manages tool registrationTools are defined as structs containing metadata (name, description, ABI types, categories) where ABIs are human-readable ABI types for better AI comprehensionImplements EVM-compatible smart contracts for multi-chain capabilities