What shipped? Vercel Connect adds a managed connector for Microsoft, letting apps and agents access Microsoft products without managing client secrets.
What changed? Vercel registers the Microsoft Entra application for you — no manual app registration, no client secret rotation. Authorize the connector for your Microsoft tenant once, then attach it to any project and environment. The @vercel/connect SDK authenticates via the deployment's OIDC identity and returns short-lived, scoped tokens for the Microsoft Graph API. Both app-level tokens (for the deployment itself) and user-delegated tokens (acting as a specific person) are supported. Available via the vc connect create microsoft CLI command.
Why does a builder care? Microsoft integrations are usually an exercise in secret management — app registrations, certificate rotation, expired tokens. This eliminates that entirely. If your app or agent needs to send Teams messages, read OneDrive files, or access SharePoint from a deployment, this turns a multi-day setup into a single CLI command.