@farhan a way of doing this would be to have a "Service" level actor that represents the server/instance, and all the accounts on said server CC/BCC all their activities to it automatically. Then as a third party you can subscribe to the service's inbox and get access to those activities.
As an example you can see here: https://federated.id/inbox
However, to my knowledge Mastodon/Pleroma don't have this instance Service available.
federated.id is another activitypub service, only it doesn't have a nice web interface to it, it's just the API.
Point one at https://federated.id/inbox for a public stream of what's on the service. It also supports some rudimentary filtering for the properties of Activities, Objects. Eg: https://federated.id/inbox?type=Create&object.type=Person
Submitting activities requires valid OAuth application credentials, so if you're interested in trying, ping me.
@AndStatus but federated.id doesn't provide webfinger support, so user discovery needs to be done through the mechanism I showed in the parent message, ie, filtering the global inbox for the desired username.
@mariusor The app registration flow is NOT Mastodon's, but rather used by Mastodon also.
Moreover, as you can see here and below, the app can you whoami endpoint to discover Actor's profile https://github.com/andstatus/andstatus/issues/499#issuecomment-457942709 - this is not supported by #Mastodon yet, but works in #Pleroma.
So, who can I connect to your server now? Any example code for a bootstrap? Could you register an account for me for testing purposes?
@AndStatus you can use the API in read-only mode without authenticating either as an app or a user.
Example code I don't really have except in Go: https://github.com/mariusor/go-littr/blob/master/app/fedbox.go
I'm not prepared to allow other apps write access to the API as it's not ready yet, and I want to be able to make breaking changes without inconveniencing anyone. I'll ping you on github when I'm confident that what I have is ready for general consumption. :)
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!