Production-ready APIs and developer tools. Every API includes REST endpoints + MCP server for AI agents.
Point at any repo, get a 0-100 health score. Dependency vulnerabilities, hardcoded secrets, license conflicts, code quality, git health — one command, full report.
Auto-generates documentation from any codebase: architecture overview, dependency graph, API surface, complete README. 100% local, no AI APIs. Reduces LLM context usage by 70%.
Reads git diff, generates semantic commit messages and changelogs automatically. Follows Conventional Commits. Zero external APIs.
Generate mock API servers from OpenAPI specs or natural language descriptions. Describe your API in English, get a running mock server instantly.
Compare costs across 14 AI models (GPT-4, Claude, Gemini, Llama, Mistral). Calculate per-request cost, monthly estimates, find cheapest model for your budget. The only API that does this.
Automated Solidity vulnerability detection. Finds reentrancy, overflow, access control, front-running and 10+ more issues. Professional audits cost $5K-$50K. This is $49.
Calculate startup valuations using 6 professional methods: Revenue Multiple, DCF, Scorecard, Berkus, Comparable Analysis, Rule of 40. Covers 10+ industries.
Calculate crypto capital gains across your portfolio. FIFO, LIFO, and Average Cost basis methods. Short-term vs long-term gains. Tax-season ready.
Real-time BUY/SELL/HOLD signals from Binance. 6 technical indicators: RSI, MACD, EMA, Bollinger Bands, StochRSI, Volume. Market screener for top 50 coins.
Unified Korean data: Seoul weather, KRW exchange rates, holidays, transit, KOSPI/KOSDAQ. No API key needed.
Score any webpage 0-100. Checks title, meta, headings, images, Open Graph, Schema.org, technical SEO. Compare two URLs.
Sentiment analysis, readability scores, keyword extraction, 7-language detection. All algorithmic, no AI API needed.
Extract metadata, links, headlines, images, tables from any URL. Custom CSS selectors. Batch up to 10 URLs.
Hashtag generator, caption templates, best posting times, engagement calculator, content ideas for 8 niches.
JSON/CSV/XML converter. Flatten, filter, sort, pick fields, stats, validate. Zero dependencies.
Generate QR codes: text, URLs, vCards, WiFi configs. PNG, SVG, base64. Custom colors and sizes.
JWT decode, hash (MD5/SHA256), base64, UUID, password generator, timestamps. Node.js built-in crypto.
Test, explain, validate regex. 17 common patterns (email, URL, phone, IP). Benchmark performance.
Lookup IP → country, city, ISP, timezone. Batch up to 100 IPs. Built-in cache.
Convert between timezones, world clock, meeting planner for distributed teams.
Analyze password strength with entropy calculation, crack time estimates, and improvement suggestions.
Validate email addresses — syntax, MX records, disposable domain detection, and more.
Validate JSON against schemas, generate schemas from data, convert between formats.
Dynamic placeholder images with custom sizes, colors, and text. Perfect for mockups and prototypes.
70 battle-tested prompts for developers, marketers, and students. Works with ChatGPT, Claude, and any AI.
5 production-ready n8n workflows: Crypto to Telegram, RSS to Social, AI Email Responder, Web Monitor, Daily Report.
Battle-tested AI coding rules for Cursor, Claude Code, and GitHub Copilot. Get better code generation with proven rule configurations.