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Sign JWTs from your Functions without managing private keys

PreviewVerifiedAdded Sep 22, 2026

Vercel KMS lets you sign JWTs and arbitrary messages from your Vercel Functions using managed asymmetric signing keys, so private keys never live in your code or environment variables. Your function authenticates with its Vercel OIDC token, and the private key stays inside Vercel's key management service while verifiers use only the public key.

Read Vercel's release notes

https://vercel.com/changelog/sign-jwts-from-your-functions-without-managing-private-keys

Summaries of vendors' own notes. Product names and logos belong to their owners; logos via logo.dev.

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