Howto add custom profile info in account_data and show to friends?

[Narsiss]

I've add some info about user by this API:
https://matrix.org/docs/api/#put-/_matrix/client/v3/user/-userId-/account_data/-type-

But cannot query by "/_matrix/client/v3/profile/{userId}", only shows the name and avatar, is there any config let users show there infomation?

[DMRobertson]

Note that account data and profiles are separate, unrelated concepts. From your link:

[Account data] is only visible to the user that set the account data.

The /profile endpoint only returns a name and avatar at present (https://spec.matrix.org/v1.4/client-server-api/#get_matrixclientv3profileuserid), though there have been discussions about extending it: see matrix-org/matrix-spec-proposals#1769 .

This isn't something you can do in Synapse at present. The best approximation would be to add extra content to you m.room.member events, but a) this would be a hack and clients wouldn't support it at all; b) this wouldn't scale: you'd have to do this once for every room you're in.