Enhancing security of backend connectivity with OpenID Connect

Vercel introduced support for OpenID Connect (OIDC) Federation, enabling developers to replace long-lived credentials stored in environment variables with short-lived, RSA-signed JSON Web Tokens (JWTs) for external requests in builds and Vercel Functions.

The feature integrates with major cloud providers such as AWS, Azure, Firebase, and GCP, allowing automated token issuance and rotation to reduce security risks.