With PostgreSQL 18 introducing built-in OAuth 2.0 and OpenID Connect (OIDC) authentication, tools like pg_oidc_validator have become an essential part of the ecosystem by enabling server-side verification of OIDC tokens directly inside PostgreSQL. If you’re new to the topic, make sure to read our earlier posts explaining the underlying concepts and the need for external validators:
This is a companion discussion topic for the original entry at https://percona.community/blog/2025/12/17/enhancing-postgresql-oidc-with-pg_oidc_validator