API Docs

You can find Swagger docs but setting the path /swagger-ui to your Argo CD UI's. E.g. http://localhost:8080/swagger-ui.

Authorization

You'll need to authorize your API using a bearer token. To get a token:

$ curl $ARGOCD_SERVER/api/v1/session -d $'{"username":"admin","password":"password"}'
{"token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOjE1Njc4MTIzODcsImlzcyI6ImFyZ29jZCIsIm5iZiI6MTU2NzgxMjM4Nywic3ViIjoiYWRtaW4ifQ.ejyTgFxLhuY9mOBtKhcnvobg3QZXJ4_RusN_KIdVwao"} 

<=v1.2

Then pass using the HTTP SetCookie header, prefixing with argocd.token:

$ curl $ARGOCD_SERVER/api/v1/applications --cookie "argocd.token=$ARGOCD_TOKEN" 
{"metadata":{"selfLink":"/apis/argoproj.io/v1alpha1/namespaces/argocd/applications","resourceVersion":"37755"},"items":...}

v1.3

Then pass using the HTTP Authorization header, prefixing with Bearer:

$ curl $ARGOCD_SERVER/api/v1/applications -H "Authorization: Bearer $ARGOCD_TOKEN" 
{"metadata":{"selfLink":"/apis/argoproj.io/v1alpha1/namespaces/argocd/applications","resourceVersion":"37755"},"items":...}