Connection refused. Is the MCP server running error? #814
Description
Inspector Version
Latest (0.16.8)
Describe the bug
I cannot connect my MCP inspector to my MCP server.
This is what I see when trying to connect to the StreamableHttp endpoint:
When I try to connect to the SSE endpoint this is the error I see:
To Reproduce
Steps to reproduce the behavior:
- Run
npx -y @modelcontextprotocol/inspector@latest - Start MCP local server
- Try to connect via session token provided in CLI
- Connection fails
Expected behavior
Connection should not fail
Environment (please complete the following information):
- OS: Windows
- Browser Edge