Vercel API Emulator

Fully stateful Vercel REST API emulation with Vercel-style JSON responses and cursor-based pagination.

Start

Local listeners bind to 127.0.0.1 by default. For access from containers or other machines, pass --host 0.0.0.0 to the CLI or hostname: '0.0.0.0' to createEmulator. Configure --base-url or baseUrl for advertised URLs reachable by those clients.

# Vercel only
npx emulate --service vercel

# Default port
# http://localhost:4000

Or programmatically: