Securing Multi-Provider APIs with Gateway-Level JWT Validation

Production environments increasingly require APIs to accept tokens from multiple identity providers—such as a tenant's Auth0 instance or Google Workspace. kgateway's JWTPolicy resource simplifies this complexity by validating tokens from multiple issuers in a single policy, eliminating the need for separate gateways per provider. Understanding JWT signature verification and JWKS endpoints is critical for building secure, scalable multi-tenant API architectures.