@coinbase/cdp-langchain

CDP Agentkit Extension - Langchain Toolkit

CDP integration with Langchain to enable agentic workflows using the core primitives defined in cdp-agentkit-core. This toolkit contains tools that enable an LLM agent to interact with the Coinbase Developer Platform. The toolkit provides a wrapper around the CDP SDK, allowing agents to perform onchain operations like transfers, trades, and smart contract interactions.

Prerequisites

• Node.js 18 or higher
• CDP API Key
• OpenAI API Key

Installation

npm install @coinbase/cdp-langchain

Environment Setup

Set the following environment variables:

export CDP_API_KEY_NAME=<your-api-key-name>
export CDP_API_KEY_PRIVATE_KEY=<your-private-key>
export OPENAI_API_KEY=<your-openai-api-key>
export NETWORK_ID=base-sepolia  # Optional: Defaults to base-sepolia

Usage

Basic Setup

import { CdpToolkit } from "@coinbase/cdp-langchain";
import { CdpAgentkit } from "@coinbase/cdp-agentkit-core";

// Initialize CDP Agentkit
const agentkit = CdpAgentkit.configureWithWallet();

// Create toolkit
const toolkit = new CdpToolkit(agentkit);

// Get available tools
const tools = toolkit.getTools();

Available Tools

The toolkit provides the following tools:

1. get_wallet_details - Get details about the MPC Wallet
2. get_balance - Get balance for specific assets
3. request_faucet_funds - Request test tokens from faucet
4. transfer - Transfer assets between addresses
5. trade - Trade assets (Mainnet only)
6. deploy_token - Deploy ERC-20 token contracts
7. mint_nft - Mint NFTs from existing contracts
8. deploy_nft - Deploy new NFT contracts
9. register_basename - Register a basename for the wallet
10. wow_create_token - Deploy a token using Zora's Wow Launcher (Bonding Curve)
11. wow_buy_token - Buy Zora Wow ERC20 memecoin with ETH
12. wow_sell_token - Sell Zora Wow ERC20 memecoin for ETH

Using with an Agent

import { ChatOpenAI } from "@langchain/openai";
import { initializeAgentExecutorWithOptions } from "langchain/agents";

// Initialize LLM
const model = new ChatOpenAI({
  model: "gpt-4o-mini",
});

// Create agent executor
const executor = await initializeAgentExecutorWithOptions(toolkit.getTools(), model, {
  agentType: "chat-conversational-react-description",
  verbose: true,
});

// Example usage
const result = await executor.invoke({
  input: "Send 0.005 ETH to john2879.base.eth",
});

console.log(result.output);

CDP Toolkit Specific Features

Wallet Management

The toolkit maintains an MPC wallet that persists between sessions:

// Export wallet data
const walletData = await agentkit.exportWallet();

// Import wallet data
const importedAgentkit = CdpAgentkit.configureWithWallet({ cdpWalletData: walletData });

Network Support

The toolkit supports multiple networks.

Gasless Transactions

The following operations support gasless transactions on Base Mainnet:

• USDC transfers
• EURC transfers
• cbBTC transfers

Examples

Check out examples/ for inspiration and help getting started:

• Chatbot: Interactive chatbot with onchain capabilities

Contributing

See CONTRIBUTING.md for detailed setup instructions and contribution guidelines.

Documentation

• CDP Agentkit Documentation
• CDP Agentkit Langchain Extension API Reference

License

Apache-2.0