Multi-agent Communication Protocol Server
A standardized interface for agent-to-agent communication that enables composability, supports streaming, and implements server-sent events (SSE) for real-time interaction.
README
New
https://github.com/invariantlabs-ai/mcp-streamable-http/blob/main/python-example/server/weather.py
-
example folder
-
example question: Tell me the forecast for Boston tomorrow.
{
"Latitude": "42.3601",
"Longitude": "-71.0589
}
pyenv virtualenv 3.12 lab_mcp
pyenv activate lab_mcp
pip install -r requirements.txt
or
yes | pip install -r requirements.txt
uvicorn main:app --reload
Test
curl http://127.0.0.1:8000/mcp
Output
event: endpoint
data: /mcp/messages/?session_id=f58ebf791ad445319884ae5bc336ba4c
main_auth
uvicorn main:app --reload
Test client
curl http://127.0.0.1:8000/mcp
Output
{"detail":"Not authenticated"}
Server
"GET /mcp HTTP/1.1" 403 Forbidden
Test client2
curl -H "Authorization: Bearer <your-actual-jwt-token>" http://localhost:8000/mcp
event: endpoint
data: /mcp/messages/?session_id=668b4e749e0a4313bacc24f26f11c4f1
: ping - 2025-07-24 15:26:34.732362+00:00
Use Python
Server
python main_remote.py
Test client - Python
export MCP_CLIENT_TOKEN="TEST_CLIENT_TOKEN"
python client_remote.py
References
- https://medium.com/@miki_45906/how-to-build-mcp-server-with-authentication-in-python-using-fastapi-8777f1556f75
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