Built Boomlify with Cursor: Revolutionizing Temporary Emails for Developers and Power Users

Showcase Built with Cursor
1

Hey Cursor community! :waving_hand: I’m thrilled to share my latest project, Boomlify, a next-gen temporary email service that I built almost entirely using Cursor. As a developer who’s always juggling sign-ups, testing APIs, and avoiding spam in my main inbox, I needed a tool that was fast, flexible, and developer-first. Cursor made the process incredibly smooth – from ideation to deployment – and I want to walk you through what I created, how Cursor helped, and why this could be a game-changer for fellow devs here.

If you’re into building tools for privacy, automation, or just streamlining workflows, stick around. I’ll dive deep into features, pricing, API details, and more. (Pro tip: This post is packed with details for SEO vibes – search for “best temporary email API” or “disposable email with custom domains” and let’s get Boomlify ranking! )

Requesting the moderators to kindly keep this post. Please do not delete it — thank you! :folded_hands:

Why Boomlify? The Problem and My Motivation

In a world of endless registrations, spam, and privacy concerns, temporary emails are a lifesaver. But most services are clunky: short lifespans, no dashboards, limited APIs, and zero customization. I wanted something better – a service with extended lifespans (2+ months), a centralized dashboard, smart previews, and a robust API for automation.

As a solo dev, I started this as a side project to scratch my own itch. Boomlify helps with:

  • Developer workflows: Quick sign-ups for testing apps, APIs, or services without polluting your real email.
  • Privacy protection: Anonymous inboxes for newsletters, trials, or sensitive tasks.
  • Automation: Integrate into scripts, bots, or CI/CD pipelines via the API.
  • Team use: Manage fleets of inboxes with custom domains and high throughput.

The best part? I built it with Cursor, which handled everything from code generation to debugging. More on that below!

How Cursor Powered the Build

Cursor was my co-pilot throughout. Here’s how it accelerated development:

  • Rapid Prototyping: I described features like “create a dashboard for managing multiple temp emails with live previews” in natural language, and Cursor generated the React components, Redux state management, and backend Node.js endpoints in minutes. It even suggested optimizations for performance, like lazy loading inboxes.

  • API Development: For the API (more details later), I prompted Cursor with “Build a RESTful API for creating disposable emails with rate limiting and credit system.” It spat out Express.js routes, integrated with MongoDB for storage, and handled auth with JWTs. Debugging edge cases? Cursor’s inline suggestions fixed bugs on the fly.

  • Feature Iteration: Adding things like 2FA management or Telegram forwarding was seamless. I’d say, “Integrate OTP storage with cloud sync, limited by user tiers,” and Cursor refactored the codebase while maintaining clean architecture.

  • UI/UX Polish: Cursor helped with Tailwind CSS for the modern dashboard. It suggested responsive designs for cross-device sync, ensuring it works on desktop, tablet, and mobile.

  • Scaling and Security: Prompts like “Implement captcha for free tier and rate limits for API” led to integrations with reCAPTCHA and Redis for throttling. Cursor even advised on privacy features, like local password vaults.

Without Cursor, this would’ve taken months. Instead, I went from MVP to launch in weeks. If you’re building similar tools, Cursor’s AI-assisted coding is a must – it feels like having a senior dev team in your editor!

Core Features: What Makes Boomlify Stand Out

Boomlify isn’t just another temp email tool; it’s built for power users and devs. Here’s a breakdown:

  • Extended Email Lifespan: Temporary emails last 2+ months (way longer than competitors like 10minutemail). Extend duration manually when needed.

  • Centralized Dashboard: One unified view to manage all your addresses. Smart inbox previews let you scan messages without opening each one – perfect for spotting verification codes quickly.

  • Instant Generation: Create emails without registration as a guest. Link to an account later for saving and syncing.

  • Custom Domains and Addresses: Bring your own domains for branded inboxes (e.g., user@yourdomain .com). Choose from premium domains or customize names.

  • Forwarding and Automation: Push messages to Telegram instantly. Coming soon: Full compose/reply from the dashboard.

  • 2FA Management: Store and display OTP codes in one dashboard. Unlimited local storage, with cloud sync limits based on your plan (e.g., up to 400 on Ultra Pro).

  • Privacy and Security: Built-in spam protection, password generator/vault, and anonymity focus. No ads on paid tiers.

  • Cross-Device Sync: Seamless on any device, with cloud storage for messages (14-90 days depending on plan).

  • Gmail-Based Reliability: Uses Gmail infrastructure for better deliverability and flexibility.

  • Guest-to-Account Flexibility: Start as a guest for instant access, then save inboxes to your account for unlimited management.

  • Developer-Friendly API: Automate everything – create inboxes, fetch messages, manage credits. (Details below.)

And more! Like compose replies (internal now, external coming soon), temp phone numbers (rolling out), and enterprise-grade retention.

All features are accessible via a modern, ad-free (on paid) dashboard. No confusion: The UI is for manual use, while the API powers automation. Subscriptions handle feature unlocks (e.g., higher limits), and API credits are separate for creations – they never expire and are additive.

Pricing & Plans: Flexible for Everyone

Boomlify has tiers to match your needs. All plans share the core dashboard; upgrades add capacity, retention, and perks. Start free, scale as you grow.

Here’s a detailed comparison table:

Feature Free ($0 forever) Basic (Paid) Pro (Most Popular) Pro Plus Ultra Pro
Access & Experience
Captcha Verification Yes Yes Yes Yes Yes
Ads in App Yes No No No No
Support Response Delayed Instant Instant Instant Instant
Cross-Device Sync Yes Yes Yes Yes Yes
Centralized Dashboard Yes Yes Yes Yes Yes
Smart Inbox Preview Yes Yes Yes Yes Yes
Cloud Sync Yes Yes Yes Yes Yes
Mailbox Capacity
Total Mailboxes 150 500 1,000 2,500 5,000
New Mailboxes/Day 50 200 500 1,000 2,000
Forward to Telegram No Yes Yes Yes Yes
Compose Mail Internal (limited) Internal Internal Internal Internal
Extend Duration Limited Yes Yes Yes Yes
Custom Domain Control
Bring Custom Domains Yes Yes Yes Yes Yes
Custom Domains (Total) 2 3 5 10 20
Daily Custom Mailboxes 20 50 100 200 500
Custom Mailbox Capacity 100 250 500 1,000 2,500
Premium Domain Access No Yes Yes Yes Yes
Retention & Security
Mail Storage on Cloud 14 days (limited) 30 days 45 days 60 days 90 days
Email Validity Window 60 days 90 days 90 days 120 days 150 days
Password Generator/Vault Unlimited local Unlimited local Unlimited local Unlimited local Unlimited local
2FA Manager Unlimited local, 10 cloud Unlimited local, 50 cloud Unlimited local, 150 cloud Unlimited local, 200 cloud Unlimited local, 400 cloud
API Throughput & Credits
API Rate Limit 60 RPM 120 RPM 300 RPM 600 RPM 1,200 RPM
API Credit Bonus on Upgrade Daily 50 free (no bonus) 1,500 credits 4,000 credits 10,000 25,000
Temp Phone Numbers No Coming soon Coming soon Coming soon Coming soon

Key Notes on Pricing:

  • Subscriptions vs. API Credits: Subscriptions (e.g., Basic, Pro) unlock features like higher limits and no ads. API credits are separate – used only for creating mailboxes (e.g., 1 credit for 10min, 15 for permanent). Buy credits anytime ($1 = 1,000 credits), they never expire. All tiers get 50 daily free credits!
  • Bonuses: Upgrade for instant credit drops (e.g., Free to Basic: +1,500).
  • Downgrades: Keep your credits and existing inboxes (up to new limits).
  • Start Free: No card needed. Upgrade in the billing workspace.

Head to Boomlify to get started.

API: Built for Developers

The API is a highlight – simple, RESTful, and free to start (60 RPM on Free tier). Use it for automation without touching the UI. Auth via API keys (manage in dashboard).

Quickstart Endpoints:

  • POST /api/v1/emails/create: Create a temp email. Params: time (10min, 1hour, 1day, permanent), domain (verified custom). Costs credits based on type.

  • GET /api/v1/emails: List active emails. Params: include_expired, permanent_only (costs 2 credits), include_permanent (costs 2), limit (max 100).

  • GET /api/v1/emails/{id}: Get email details. Param: id (UUID).

  • GET /api/v1/emails/{id}/messages: Fetch messages. Params: limit (max 100), offset.

  • DELETE /api/v1/emails/{id}: Delete email.

  • Account Endpoints: GET /api/v1/account/usage (stats), /info (account details), /credits (balance).

Error Handling: Clear codes like 429 (rate limit), 402 (low credits), 404 (not found).

Full docs at temp mail API Test endpoints there – no setup needed. It’s dev-friendly: Rate-limited but scalable, with credits only for creations (reading/fetching is free).

How Boomlify Helps Developers

  • Testing & Automation: Spin up emails in scripts for user flows, e2e tests, or bots.
  • Privacy in Projects: Use for open-source contribs or client work without exposing personal info.
  • Scalability: High-throughput for teams (e.g., 2,000/day on Ultra Pro).
  • Integration: Hook into Telegram, custom domains for branded testing.
  • Cost-Effective: Free tier for hobbyists, bonuses for upgraders.

Cursor made adding these dev-centric features effortless – prompting for “secure API with credit deduction logic” handled the heavy lifting.

© 2025 Boomlify. Built with :heart: and Cursor.