vercel-labs/emulate

Skill by ara.so — Daily 2026 Skills collection.

emulate provides fully stateful, production-fidelity local HTTP servers that replace Vercel, GitHub, and Google APIs. Designed for CI pipelines and no-network sandboxes — not mocks, real in-memory state with proper pagination, OAuth, webhooks, and cascading deletes.

Installation

# CLI (no install needed)
npx emulate

# Or install as a dev dependency
npm install --save-dev emulate

CLI Usage