A simple MCP server that exposes a website fetching tool.
Start the server using either stdio (default) or Streamable HTTP transport:
# Using stdio transport (default)
uv run mcp-simple-tool
# Using Streamable HTTP transport on custom port
uv run mcp-simple-tool --transport streamable-http --port 8000The server exposes a tool named "fetch" that accepts one required argument:
url: The URL of the website to fetch
Using the MCP client, you can use the tool like this using the STDIO transport:
import asyncio
from mcp.client.session import ClientSession
from mcp.client.stdio import StdioServerParameters, stdio_client
async def main():
async with stdio_client(
StdioServerParameters(command="uv", args=["run", "mcp-simple-tool"])
) as (read, write):
async with ClientSession(read, write) as session:
await session.initialize()
# List available tools
tools = await session.list_tools()
print(tools)
# Call the fetch tool
result = await session.call_tool("fetch", {"url": "https://example.com"})
print(result)
asyncio.run(main())