CDP Agentkit 工具包

os.environ["LANGSMITH_API_KEY"] = getpass.getpass("Enter your LangSmith API key: ")
os.environ["LANGSMITH_TRACING"] = "true"

pip install -qU cdp-langchain

import getpass
import os

for env_var in [
    "CDP_API_KEY_NAME",
    "CDP_API_KEY_PRIVATE_KEY",
]:
    if not os.getenv(env_var):
        os.environ[env_var] = getpass.getpass(f"Enter your {env_var}: ")

# Optional: Set network (defaults to base-sepolia)
os.environ["NETWORK_ID"] = "base-sepolia"  # or "base-mainnet"

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)

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

from langchain_openai import ChatOpenAI

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

from langchain.agents import create_agent


tools = toolkit.get_tools()
agent_executor = create_agent(llm, tools)

example_query = "Send 0.005 ETH to john2879.base.eth"

events = agent_executor.stream(
    {"messages": [("user", example_query)]},
    stream_mode="values",
)
for event in events:
    event["messages"][-1].pretty_print()

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

# Export wallet data
wallet_data = cdp.export_wallet()

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