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Developer Tools

1. VirtualSMS

Real-SIM SMS verification for AI agents. Works on WhatsApp, Telegram, Google, and 2500+ other services where VoIP fails.Most SMS-verification APIs hand AI agents VoIP numbers — and WhatsApp, Telegram, Google, Binance, and Uber filter them out before the OTP is ever sent. VirtualSMS runs real physical SIM cards on owned hardware across 145+ countries for 2500+ services, so the code actually arrives.Built for AI agents from day one🤖 MCP server, 18 tools — hosted at mcp.virtualsms.io/mcp or local via npx virtualsms-mcp🔌 10 MCP clients tested: Claude Desktop, Claude Code, Cursor, Windsurf, OpenClaw, Codex, Hermes, Cline, Zed, Continue.dev💸 Account-less x402 USDC on Base, Solana, and BNB Chain — agent settles a deposit, gets an API key + balance back. No signup, no email.📡 REST + WebSocket API for the prepaid-key flow · from $0.05 per code · $2 minimum deposit✅ 95%+ success rate on real-SIM activations · auto-refund if no SMS arrives in 20 min🗺️ Machine-readable surfaces for LLM crawlers: /skill.md, /llms.txt, /.well-known/x402.jsonFor agent stacks that need real-SIM phone numbers to receive OTP codes — sign-up automations, two-factor auth, and account verification across WhatsApp / Telegram / Google / Uber / Binance and 2495 other services. Operating since 2022.→ agents.virtualsms.io · virtualsms.io · github.com/virtualsms-io/mcp-server

Artificial Intelligence APIs & Integrations Developer Tools

118

2. CreepyLink

A simple URL masking and link cloaking tool to safely disguise and customize your links.

Developer Tools Marketing Tools SaaS

3. Mailfab

Fast, disposable temporary email with OpenAPI

APIs & Integrations Developer Tools Testing & QA

4. List Bulb

ListBulb is a curated AI tools and startup discovery platform where founders can showcase products, improve SEO, gain visibility, and reach early adopters. Discover trending AI tools, SaaS products, developer utilities, and innovative startups in one place.

Artificial Intelligence Developer Tools Directory

5. NuxtBase

NuxtBase is a production-ready Nuxt SaaS starter kit designed to help indie founders and small teams launch their SaaS products in days, not months. It provides a comprehensive foundation, eliminating the need to rebuild common infrastructure from scratch. The kit comes with authentication, billing, organizations, admin tools, AI-ready flows, documentation, and SEO capabilities already wired up.

Developer Tools

6. Libretto

An open source CLI to integrate with any website.Libretto is an agent skill and token-efficient CLI that makes it easy for your coding agent to inspect live pages, reverse-engineer network requests, and generate deterministic browser automations.There’s lots of tools that use runtime AI like Browseruse and Stagehand which we tried, but (1) they’re reliant on custom DOM parsing that's unreliable on older and complicated websites (including all of healthcare). Using a website’s internal network calls is faster and more reliable when possible. (2) They can be expensive since they rely on lots of AI calls and for workflows with complicated logic you can’t always rely on caching actions to make sure it will work. (3) They’re at runtime so it’s not interpretable what the agent is going to do. You kind of hope you prompted it correctly to do the right thing, but legacy workflows are often unintuitive and inconsistent across sites so you can’t trust an agent to just figure it out at runtime. (4) They don’t really help you generate new automations or help you debug automation failures.We wanted a way to reliably generate and maintain browser automations in messy, high-stakes environments, without relying on fragile runtime agents.Libretto is different because instead of runtime agents it uses “development-time AI”: scripts are generated ahead of time as actual code you can read and control, not opaque agent behavior at runtime. Instead of a black box, you own the code and can inspect, modify, version, and debug everything.Rather than relying on runtime DOM parsing, Libretto takes a hybrid approach combining Playwright UI automation with direct network/API requests within the browser session for better reliability and bot detection evasion.It records manual user actions to help agents generate and update scripts, supports step-through debugging, has an optional read-only mode to prevent agents from accidentally submitting or modifying data, and generates Typescript code in your repo.

APIs & Integrations Developer Tools Open Source

114

7. DevGlobe

Connect your IDE and watch your coding activity come alive on a real-time 3D globe. DevGlobe delivers powerful, precise tracking of your development time, languages, and workflows, turning raw activity into meaningful insights. Showcase your projects, build a dynamic developer profile, and gain visibility within a global community. Transform your daily coding into a live, interactive presence that helps you stand out and get noticed.

Developer Tools Directory Open Source

106

8. Shotlab

Shotlab is a lightweight screenshot editor built for creators, indie hackers, and marketers who want better engagement without spending hours on design.Key Features:📐 Pre-sized canvases for ProductHunt, Twitter, Reddit & more.🎨 Stunning backgrounds, gradients, cool stickers, frames & more.⚡ Instant styling - spacing, shadows, and layout handled for you.🧩 Minimal, distraction-free UI built for speed & efficiency.What makes Shotlab different?⚡ Focuses on speed + outcomes, not endless customization.⏱️ Go from raw screenshot to polished visual in under 30 seconds.🎯 No design skills required.Real outcomes you can expect:📈 Higher engagement on posts (people actually stop scrolling).✨ More professional-looking content instantly.⚡ Faster screenshot editing without needing any design skills.If you regularly share screenshots online, Shotlab helps you make them impossible to ignore.

Design Tools Developer Tools SaaS

106

9. MarkdownCo

Convert Markdown to PDF, Word & HTML online for free. Fast, accurate converter with GFM, LaTeX math, Mermaid diagrams & code highlighting. No signup required to try.

Developer Tools Productivity SaaS

114

10. MarkFlow

Free online Markdown to Word converter with full GFM support. Preserves tables, LaTeX math, Mermaid diagrams, images, and code blocks perfectly in .docx format.

Developer Tools Productivity SaaS

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