I'm having ideas for a mod which implements the Mojang API, but needs to be authenticated. In order to make an user requests to the API, I need the access token. Creating an access token cancels out any existing ones, including the current user's session, effectively logging them. Is there any way to simply use the existing one generated on launcher startup? It should be in Minecraft somewhere, I just don't know where.

3 hours ago, diesieben07 said:

Minecraft::session.

Well, my fault for not looking long enough. That's what I'm looking for!

Probably don't know, but is the Session.getToken() an access token or a client token?

2 minutes ago, diesieben07 said:

It's the authentication token.

So... The access token? The access token is used directly with Mojang's API to change things like the skin, while the client token is used to gain access to the access token as well as basic user info.

4 minutes ago, diesieben07 said:

It's the access token, which is called authentication token in the code.

The client token is only used in the launcher to log you in.

Right, that's great then.