I can not run fastapi (unknown command)

[Lowievhb]

When I try to use the fastapi dev command it doesn't do anything , it just tells me that it isn't a command

[amrpyt]

Same problem here

[tornado909]

Same

[gitover22]

When I try to use the fastapi dev command it doesn't do anything , it just tells me that it isn't a command

maybe you can try：

pip install "fastapi[standard]"

then try again, hope this can help you.

[maulikmadhavi]

I had the same issue. You uninstall and reinstalled as suggested by @gitover22 . Make sure it should install fastapi-cli . Hope it works!