Built a collection of free crypto tools:
🐋 Whale Tracker — Real-time BTC wallet balances for major exchanges
📈 Arb Scanner — Cross-exchange price discrepancies for BTC, ETH, SOL, XMR, DOGE
🚰 Faucet Directory — Curated list of working crypto faucets (including XMR mining via MoneroOcean)
📊 Data Store — Free downloadable datasets (crypto fear/greed, arb opportunities)
Everything has JSON APIs too if you want to build on top of them.
No signup, no tracking, no ads. Tips accepted via Lightning (devtoolkit@coinos.io) if you find it useful.
Built by a solo dev running everything on a single VPS. Feedback welcome!