MockBolt's answer:

Backend: - Python + FastAPI — async API server - PostgreSQL — primary database for mock endpoints and vault data - SQLAlchemy (async) — ORM and query layer - Slowapi — rate limiting middleware - Uvicorn — ASGI server

Frontend: - React 18 + TypeScript - Vite — build tool - Tailwind CSS — styling - Monaco Editor — JSON editor (same engine as VS Code) - React Router v6 - react-helmet-async — per-page SEO meta tags

Infrastructure: - AWS Lightsail — VPS hosting (ap-south-1, Mumbai) - Docker + Docker Compose — containerised deployment - Nginx — reverse proxy + static file serving - Cloudflare — DNS, SSL, CDN, DDoS protection

Payments: - Lemon Squeezy — Merchant of Record for the $2 permanent endpoint upgrade (handles international tax compliance)

Analytics: - Google Analytics 4 — aggregate traffic metrics

MockBolt's answer:

MockBolt is the only mock API tool that combines all three things developers actually need: cloud-hosted, no signup, and instant. Every competing tool compromises on at least one of them.

Mockoon requires a desktop install and only works locally — there is no public URL. json-server requires Node.js and runs on your machine. Beeceptor and Mocky.io require creating an account before you can do anything.

MockBolt has none of those barriers. You open the site, paste your JSON, and you have a live public URL with open CORS in under 10 seconds — from any device, with no account, no terminal, no install.

Beyond that, MockBolt has features most competitors charge for or require accounts to use: response delay simulation (for testing loading states and timeouts), custom HTTP status codes, custom response headers, all five HTTP methods on a single endpoint, and a hit counter so you know your endpoint is being called.

The optional vault system is also unique — it gives you a persistent dashboard of all your mocks using a randomly generated key as your only identifier. No email, no password. Complete anonymity with persistence.

MockBolt's answer:

Choose MockBolt if you want a live mock API endpoint in under 10 seconds with no account, no install, and no local server.

Over Mockoon: Mockoon is a great desktop app, but your mock only runs while your computer is open. It has no public URL — you cannot share it with a teammate or hit it from a mobile device on a different network. MockBolt gives you a public URL immediately that works from anywhere.

Over json-server: json-server is powerful but requires Node.js, a terminal, and local setup every time. If you share a project with another developer, they have to set it all up again. MockBolt has no dependencies — open a browser, paste JSON, share the URL.

Over Beeceptor: Beeceptor requires a signup and email verification before you can create your first endpoint. MockBolt requires nothing. You are using it before you finish reading this sentence.

Over Mocky.io: Mocky requires an account, has limited method support, and minimal configuration options. MockBolt supports all HTTP methods, response delay, custom headers, and custom status codes with no account.

The $2 permanent endpoint upgrade is also unique in this space — one payment, no recurring cost, your endpoint lives forever. Competitors either do not offer persistence or charge monthly.

MockBolt's answer:

MockBolt's primary audience is frontend and fullstack developers who need a live API endpoint quickly during development or testing — and who do not want to spend time on setup.

More specifically:

• Frontend developers building UI components before the backend is ready. They need a real URL returning real data, not a mock library wired into their app.
• QA and test engineers who need a predictable, stable endpoint to run integration tests or Postman collections against — without depending on a real backend.
• Freelancers and indie hackers building prototypes and MVPs who need to demo a working app to a client without spinning up backend infrastructure.
• Mobile developers (React Native, Flutter) who need a CORS-free public endpoint accessible from simulators and real devices, not just localhost.
• Workshop instructors and teachers who need to give 20–30 students a working API URL instantly without any server setup or student accounts.
• Backend developers who need a quick stub endpoint to test webhooks, third-party integrations, or service-to-service calls.

The common thread is: developers who value their time and want to skip the setup ceremony.

MockBolt's answer:

MockBolt came from a recurring frustration: being in the middle of building a frontend feature and realizing the API endpoint it depends on does not exist yet.

The usual options — spinning up json-server, installing Mockoon, creating a Beeceptor account, writing a fake Express server — all take 15–30 minutes and break your flow. You end up either waiting for the backend or hardcoding data directly into the component, which you then have to undo later.

The question was simple: why can't I paste JSON and get a URL right now?

MockBolt was built to answer that question. The goal from day one was that the time from opening the site to having a working endpoint should be under 10 seconds. No signup, no install, no terminal, no dependencies. Just paste and go.

The first version was built in a weekend. The tool was used internally before it ever had a name. When it proved genuinely useful during real development work, it was refined, hardened, and launched publicly.

Today MockBolt also has a vault system (anonymous persistent accounts with no email or password), a $2 permanent endpoint upgrade via Lemon Squeezy, response delay simulation, custom headers and status codes, and a hit counter — all built based on the natural next things developers asked for after using the core tool.

MockBolt's answer:

MockBolt is designed to be fully anonymous — no signup, no email, no account. This means we intentionally do not know who our users are by design.

Because of this, we cannot name specific customers — and we consider that a feature, not a limitation. Every developer who uses MockBolt gets the same experience whether they are a solo student learning fetch() for the first time or a senior engineer at a large company prototyping a feature.

What we can say is that MockBolt is used by:

• Individual developers and freelancers building side projects and client work
• Frontend engineers at product companies bridging the gap while waiting for backend APIs
• QA engineers running integration test suites against stable, predictable endpoints
• Workshop instructors giving students a live API URL without requiring any student account or setup
• Mobile developers testing React Native and Flutter apps against real public endpoints

If you are using MockBolt and would like to be listed here, reach out at support@mockbolt.com.