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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

Installation

pip install cdp-langchain

Environment Setup

Set the following environment variables:

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

Usage

Basic Setup

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)

View available tools:

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

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

Using with an Agent

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

CDP Tookit Specific Features

Wallet Management

The toolkit maintains an MPC wallet that persists between sessions:

# Export wallet data
wallet_data = cdp.export_wallet()

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

Network Support

The toolkit supports multiple networks.

Gasless Transactions

The following operations support gasless transactions on Base Mainnet:

  • USDC transfers
  • EURC transfers
  • cbBTC transfers

Contributing

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

Documentation

For detailed documentation of all CDP features and configurations, visit: