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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.

Setup

Prerequisites

CDP

OpenAI

Python

  • Python 3.10 or higher

Typescript

  • Node.js 18 or higher

Installation

Python

pip install cdp-langchain

Typescript

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

Python

from cdp_langchain.agent_toolkits import CdpToolkit
from cdp_langchain.utils import CdpAgentkitWrapper

# Initialize CDP wrapper
cdp = CdpAgentkitWrapper()

# Create toolkit from wrapper
toolkit = CdpToolkit.from_cdp_agentkit_wrapper(cdp)

# Get available tools
tools = toolkit.get_tools()
for tool in tools:
    print(tool.name)

Typescript

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

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

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

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

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
  13. wrap_eth - Wrap ETH to WETH

Using with an Agent

Python

from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

# Initialize LLM
llm = ChatOpenAI(model="gpt-4o-mini")

# Get tools and create agent
tools = toolkit.get_tools()
agent_executor = create_react_agent(llm, tools)

# Example usage
events = agent_executor.stream(
    {"messages": [("user", "Send 0.005 ETH to john2879.base.eth")]},
    stream_mode="values"
)

for event in events:
    event["messages"][-1].pretty_print()

Expected output:

Transferred 0.005 of eth to john2879.base.eth.
Transaction hash for the transfer: 0x78c7c2878659a0de216d0764fc87eff0d38b47f3315fa02ba493a83d8e782d1e
Transaction link for the transfer: https://sepolia.basescan.org/tx/0x78c7c2878659a0de216d0764fc87eff0d38b47f3315fa02ba493a83d8e782d1

Typescript

Additional Installations
npm install @langchain/langgraph @langchain/openai
import { ChatOpenAI } from "@langchain/openai";
import { HumanMessage } from "@langchain/core/messages";
import { createReactAgent } from "@langchain/langgraph/prebuilt";

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

// Create agent executor
const agent = createReactAgent({
  llm: model,
  tools,
});

// Example usage
const result = await agent.invoke({
  messages: [new HumanMessage("Send 0.005 ETH to john2879.base.eth")],
});

console.log(result.messages[result.messages.length - 1].content);

CDP Tookit Specific Features

Wallet Management

The toolkit maintains an MPC wallet that persists between sessions:

Python

# Export wallet data
wallet_data = cdp.export_wallet()

# Import wallet data
values = {"cdp_wallet_data": wallet_data}
cdp = CdpAgentkitWrapper(**values)

Typescript

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

// Import wallet data
const importedAgentkit = await 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 cdp-langchain/examples for inspiration and help getting started!

  • Chatbot Python: Simple example of a Python Chatbot that can perform complex onchain interactions, using OpenAI.
  • Chatbot Typescript: Simple example of a Node.js Chatbot that can perform complex onchain interactions, using OpenAI.

Contributing

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