Created an mcp server which calls another local server, trying to fetch this server using its local address (localhost:8000) but then I got this response from the mcp server:
{"type": "text", "text": "fetch failed"}
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1 Answer
Solved the problem by replacing localhost with my actual local ip address (e.g http://192.168.2.32:8000).
Seems like there's a problem for ClaudeDesktop to call localhost addresses by security reasons.
you can get your local ip address on macOS/unix using this command:
ifconfig | grep "inet " | grep -v 127.0.0.1
Just to make it more clear:
// replace
fetch(localhost:8000)
// with (your local ip address)
fetch(http://192.168.2.32:8000)
1 Comment
Thierry Brémard
claude desktop is full of bugs , from messageBox error which disapear in 1 second to unability to retreive data of mcp server of size > 1MB. i would not be surpised it has been generated with ai without code review. also they have no support platform for bug report .... frustrating !