"""
Simple MCP server that logs headers received from clients.
Run with: python server.py
"""
from fastmcp import FastMCP
from fastmcp.server import Context
from fastmcp.server.dependencies import get_http_request
# ---------------------------------------------------------------------------
# Create Example
# ---------------------------------------------------------------------------
mcp = FastMCP("Dynamic Headers Demo Server")
@mcp.tool
async def greet(name: str, ctx: Context) -> str:
"""Greet a user with personalized information from headers."""
request = get_http_request()
# Access headers (lowercase)
user_id = request.headers.get("x-user-id", "unknown")
session_id = request.headers.get("x-session-id", "unknown")
agent_name = request.headers.get("x-agent-name", "unknown")
team_name = request.headers.get("x-team-name", "none")
print("=" * 60)
print(
f"Headers -> User: {user_id} | Session: {session_id} | Agent: {agent_name} | Team: {team_name}"
)
print("=" * 60)
return f"Hello, {name}! (User: {user_id}, Agent: {agent_name}, Team: {team_name})"
# ---------------------------------------------------------------------------
# Run Example
# ---------------------------------------------------------------------------
if __name__ == "__main__":
mcp.run(transport="streamable-http", port=8000)
Run the Example
# Clone and setup repo
git clone https://github.com/agno-agi/agno.git
cd agno/cookbook/05_agent_os/mcp_demo/dynamic_headers
# Create and activate virtual environment
./scripts/demo_setup.sh
source .venvs/demo/bin/activate
python server.py