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Agent Kit LangGraph Example

This example demonstrates how to build an advanced Solana agent using LangGraph and the Solana Agent Kit. It showcases a multi-agent system that can handle various Solana-related tasks through a directed workflow.

Solana Agent Kit LangGraph Architecture

Features

  • Multi-agent architecture using LangGraph's StateGraph
  • Specialized agents for different tasks:
    • General purpose agent for basic queries (with optional Tavily search integration)
    • Transfer/Swap agent for transaction operations
    • Read agent for blockchain data queries
    • Manager agent for routing and orchestration
  • Environment-based configuration
  • TypeScript implementation with full type safety

Prerequisites

  • Node.js (v16 or higher)
  • pnpm package manager
  • Solana development environment

Installation

  1. Clone the repository and navigate to the example directory:
cd examples/agent-kit-langgraph
  1. Install dependencies:
pnpm install
  1. Configure environment variables:
cp .env.example .env

Edit the .env file with your configuration:

  • Add your OpenAI API key
  • Add your Tavily API key (optional, enables web search capabilities)
  • Configure any other required environment variables

Project Structure

src/
├── agents/         # Individual agent implementations
├── helper/         # Helper utilities and examples
├── prompts/        # Agent prompts and templates
├── tools/          # Custom tools for agents
└── utils/          # Utility functions and configurations

Usage

To run the example:

pnpm dev src/index.ts

The example demonstrates a workflow where:

  1. The manager agent receives the initial query
  2. Based on the query type, it routes to the appropriate specialized agent:
    • General queries → Generalist Agent
    • Transfer/Swap operations → TransferSwap Agent
    • Blockchain data queries → Read Agent

Dependencies

  • @langchain/community: LangChain community tools and utilities
    • Includes Tavily search integration for enhanced query responses
  • @langchain/core: Core LangChain functionality
  • @langchain/langgraph: Graph-based agent workflows
  • solana-agent-kit: Solana Agent Kit for blockchain interactions
  • zod: Runtime type checking

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

ISC License