Platform · fintech / crypto markets, analysis tools for traders
ST0NKS
2026 · Platform · TypeScript, NestJS
A free spread and funding terminal covering 24 exchanges, with live order books, alerts and a bilingual textbook
Our own web service with a retro terminal design: four real-time scanners (CEX, DEX, FUNDING, STOCK), a pair page with spread candles, Long/Short order books and a calculator, and threshold alerts in Telegram. Built using the “clean room” method on the exchanges’ public market APIs, without calls to third-party aggregators. The service comes with the Academy — a textbook and a blog in Russian and English with verifiable sources — and an arbitrage knowledge base with 47 articles.
The task
An arbitrage trader has to scroll through dozens of exchanges by hand and work out whether a price gap covers fees, slippage and funding; paid alternatives cost about $150 a month and promise unrealistic returns.
What’s inside
- Four scanners: CEX (spot spread between exchanges), STOCK (tokenised stocks and pre-IPO), DEX (CEX↔DEX, multichain), FUNDING (a matrix of funding rates by period)
- Pair page: Entry/Exit spread candles, a funding chart, live Long/Short order books, a Position Manager with order-book-based PnL, an Arbitrage Calculator
- Coverage: 24 exchanges via ccxt and GeckoTerminal; Telegram alerts on a spread threshold; favourites; dark and light themes; a bilingual interface
- Academy: a textbook and a blog in Russian and English (46 textbook pages and 4 blog posts per language); a page exists in both languages or not at all; an integrity check before publishing
- KB knowledge base: 7 sections, 47 articles, 180 illustrations, 691 verified internal links, 7 automated checks (sources by SHA-256, links, duplicates, quotes, claims about returns, facts)
- Data honesty: stale-data flags on views, per-exchange circuit breakers, a strict CSP, metrics, cross-checking charts against an external reference
Machine translation — being proofread.
