Authentication

Get details about the client and application associated with your access_token.

The JSON Web Key Set (JWKS) is a set of keys containing the public keys used to verify JWTs in webhooks sent by MoneyKit.

The JWKS should be cached, but MoneyKit rotates its webhook keys periodically, so if an
incoming webhook's JWT has a key ID (`kid`) not contained in the cached JWKS, you should fetch
and cache the updated JWKS using this endpoint.