Agent Frameworks

from langchain_mcp_adapters.client import MultiServerMCPClient
from langgraph.prebuilt import create_react_agent
from langchain_anthropic import ChatAnthropic

# Connect to Agent Wallet MCP server
async with MultiServerMCPClient(
    {
        "finance-district": {
            "url": "https://wallet-mcp.fd.xyz",
            "transport": "streamable-http",
        }
    }
) as client:
    tools = client.get_tools()

    agent = create_react_agent(
        ChatAnthropic(model="claude-sonnet-4-20250514"),
        tools
    )

    result = await agent.ainvoke(
        {"messages": [{"role": "user", "content": "Check my wallet balance"}]}
    )

import subprocess
import json
from langchain.tools import tool

@tool
def wallet(method: str) -> str:
    """Execute an FDX wallet command. Pass an MCP method name and arguments.
    Example: 'getWalletOverview --chainKey ethereum'
    Run 'fdx wallet' for available methods."""
    result = subprocess.run(
        ["fdx", "wallet"] + method.split(),
        capture_output=True, text=True
    )
    return result.stdout

# Use in an agent
agent = create_react_agent(llm, [wallet])

from crewai import Agent, Task, Crew
from crewai.tools import tool
import subprocess
import json

@tool("Agent Wallet")
def wallet(method: str) -> str:
    """Manage crypto wallet via FDX. Pass an MCP method name and arguments.
    Example: 'getWalletOverview --chainKey ethereum' or 'transferTokens --chainKey ethereum --toAddress 0x... --amount 5 --asset USDC'"""
    result = subprocess.run(
        ["fdx", "wallet"] + method.split(),
        capture_output=True, text=True
    )
    return result.stdout

financial_agent = Agent(
    role="Financial Agent",
    goal="Manage wallet operations and execute transactions",
    tools=[wallet],
    verbose=True
)

task = Task(
    description="Check the wallet balance and swap 10 USDC for ETH if balance allows",
    agent=financial_agent
)

crew = Crew(agents=[financial_agent], tasks=[task])
result = crew.kickoff()

from autogen import ConversableAgent
import subprocess
import json

def wallet_command(method: str) -> str:
    result = subprocess.run(
        ["fdx", "wallet"] + method.split(),
        capture_output=True, text=True
    )
    return result.stdout

assistant = ConversableAgent(
    name="financial_assistant",
    llm_config={"model": "claude-sonnet-4-20250514"},
)

# Register wallet as a callable function
assistant.register_for_llm(
    name="wallet",
    description="Execute FDX wallet commands. Pass MCP method name and arguments."
)(wallet_command)

import { Client } from "@modelcontextprotocol/sdk/client/index.js";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js";

async function createMcpClient() {
  const transport = new StreamableHTTPClientTransport(
    new URL("https://wallet-mcp.fd.xyz"),
  );

  const client = new Client({ name: "my-agent", version: "1.0.0" });
  await client.connect(transport);

  return client;
}

// Use in your agent logic
const client = await createMcpClient();

// Check balance
const result = await client.callTool({
  name: "getWalletOverview",
  arguments: {},
});

// Transfer
const transfer = await client.callTool({
  name: "transferTokens",
  arguments: {
    to: "0x1234...5678",
    amount: "5",
    token: "USDC",
  },
});