You don't have to evaluate client requests and implement protocol logic. Forward each incoming request to Authlete; we'll manage the protocol steps and issue tokens on your OAuth/OIDC server's behalf, supplying each response for you to simply return to the client.
Authlete's APIs are carefully crafted to focus on the core of OAuth/OIDC. You can choose to build a complete OAuth/OIDC server with Authlete, or simply integrate Authlete with existing service components such as identity and access management (IAM) and API gateways.
Authlete is an OpenID Certified and Financial-grade API (FAPI) compliant solution, supporting Identity Assurance, Grant Management, and many other OAuth/OIDC extensions.