Access Protected Vercel Deployments

Use the caller's existing Vercel authentication. Do not disable Deployment Protection or ask for a long-lived bypass secret as the first solution.

Choose the access path

HTTP requests: use vercel curl

For response bodies, headers, health checks, and API calls, replace raw curl with vercel curl (vc curl). It accepts native curl options and uses Vercel authentication to access protected preview and production deployments.

vc curl https://my-app.vercel.app/api/health
vc curl https://app.example.com/api/health
vc curl my-app.vercel.app/api/users -X POST \
  -H "Content-Type: application/json" \
  -d '{"name":"Ada"}'
vc curl /api/health