README.md•1.66 kB
# mcp-demo
Use FastAPI and FastMCP (from https://gofastmcp.com/integrations/fastapi#offering-an-llm-friendly-api and https://gofastmcp.com/integrations/fastapi#combining-lifespans)
## Installation
```
poetry install
```
### Adding MCP to Claude Code CLI
```
claude mcp remove demo-mcp || true && claude mcp add demo-mcp --transport http http://localhost:8000/llm/mcp && claude mcp list
```
Then launch Claude Code and confirm it sees and tests the add tool:
```
> Now you should see the add numbers tool in the demo-mcp MCP server
● I can see that you've successfully reconnected to the demo-mcp MCP server. Let me verify that the add numbers tool is available by checking the MCP resources.
● listMcpResources(List MCP resources from server "demo-mcp")
⎿ (No resources found)
● Great! The demo-mcp server is connected. I can confirm that the mcp__demo-mcp__add_nums tool is available in the function tools, which means it's been successfully exposed through the MCP server.
Let me test it by adding two numbers:
● demo-mcp - add_nums (MCP)(a: 5, b: 3)
⎿ {
"result": 8
}
● Perfect! The add numbers tool from the demo-mcp MCP server is working correctly. When I called it with a=5 and b=3, it returned the correct result of 8.
The MCP integration is working as expected. You can now use this tool (and any other tools exposed by the demo-mcp server) throughout your Claude Code session.
```
## Running
```
make run
```