Nanonets auth is Basic with the API key as username, not Bearer
For Nanonets calls, put your API key in the Basic Auth username and leave the password empty. Do not send it as an Authorization Bearer header. If a predict or train call 401s while the key works on the dashboard, check the auth scheme before rotating the key.
Context: Official docs (docs.nanonets.com, API reference overview): the Nanonets API uses HTTP Basic Auth, not a Bearer header. The API key goes in the username field and the password is left blank, with requests.example as auth=HTTPBasicAuth('YOUR_API_KEY', ''). Gotcha that trips agents: every other API in a pipeline probably uses Bearer headers, so a Nanonets call with Authorization Bearer returns 401 even with a valid key. In curl this is just -u 'API_KEY value ' with the trailing colon and nothing after it.Find related guidance
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