# Vercel Flags no longer requires SDK Keys for Vercel deployments

**Published:** June 24, 2026 | **Authors:** Luis Meyer

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New projects using Vercel Flags no longer need to configure SDK Keys or the `FLAGS` environment variable when evaluating flags inside a Vercel deployment. At runtime, the Vercel adapter automatically receives a short-lived OIDC token, so authentication is handled for you with zero configuration.

For local development, link your project with `vercel link` and pull credentials with `vercel env pull`. That's it.

Existing projects and all SDK Keys are unaffected. This change only applies to new projects, and SDK Keys remain fully supported and are still required for:

- Cross-project flag access
- Non-Vercel runtimes
- Custom authentication setups

Read the [Vercel Flags documentation](https://vercel.com/docs/flags) to get started.

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