* [fast-jwt v6.3.2](https://github.com/nearform/fast-jwt) – High-performance JWT library for signing and verifying tokens with configurable claims and algorithms. * [Doorkeeper::JWT v0.4.4](https://github.com/doorkeeper-gem/doorkeeper-jwt) – Doorkeeper::JWT adds JWT token support to the Doorkeeper OAuth library, generating and signing access tokens from configurable payloads and secrets.