BWADMIN REST API not working

[Imran Patan 2]

I have tried bw api by running bwagent apiserver and tried accessing it via URL. but the only few HTTP methods are working like GET /agents/info , but other methods related to node is not working like get /domains/{domain}/appspaces/{appspace}/appnodes/{name}/info

The error I get is

{"message":"TIBCO-BW-ADMIN-500300: The AppNode [testAppNode] does not exist in AppSpace [testAppSpace] and Domain [TEST].","code":null}

while TEA is clearly show the configured nodes in that domain

Is there any configurations required apart from starting the API server

Versions we are using are BW 6.5 with TEA 2.3