There are two ways either you can use a Data API or API workflow. I suggest using Workflow API.
- Create an API workflow make it publicly visible and do not check the run without authentication.
- Generate an API key in your app, which you use to authenticate your API call which you send from another app.
- inside the API workflow do the action and at the end use a
return data action which will give a response.
Form other apps call your API workflow with the token you generated. : website home URL/api/1.1/wf/API workflow name?api_token=generated token form bubble.
That set.