Vercel

Identity, authentication, and account management for your users.

Let external developers and integrations interact with your product programmatically via a documented REST API and outbound webhooks.

Charge customers via one-time purchases, subscriptions, or usage-based billing.

Understand how users interact with your product through event tracking, funnels, and retention analysis.

Internal tooling for operations, support, and moderation teams to manage users, content, and configuration.

Alert users about events relevant to them across multiple delivery channels.

Let customers subscribe to events in your product and receive HTTP POSTs when those events occur.

Prevent abuse, contain bursts, and enforce fair use across authenticated APIs, public endpoints, and expensive operations.

An immutable record of who did what, when, and from where — for compliance, security investigation, and customer-facing transparency.

Run work asynchronously outside the request path — emails, exports, integrations, scheduled tasks, and anything slow enough to break a web request.

Send reliable, deliverable emails triggered by product events — verification, password reset, receipts, invitations, and system alerts.