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Measured on six things

CoinBoss aggregates real-time crypto derivatives and on-chain data: liquidations across major exchanges, open interest, funding rates, long-short ratios, spot and derivatives volume, ETF flows, stablecoin issuance and exchange balances.

Usability

Navigation covers every data vertical and 13 languages are supported, but there's no onboarding, glossary, or tooltip for funding rate or OI. New traders are dropped straight into the deep end.

Screenshots

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CoinBoss

About this app

CoinBoss is a crypto derivatives data platform for traders and analysts who need clean, live market structure signals—not another price chart. It consolidates liquidations, open interest, funding rates, long-short ratios, spot and derivatives volume, ETF flows, stablecoin issuance, and exchange balances into one dashboard.

Key features

1Unified derivatives dashboard: liquidations, open interest, funding rates, long/short ratios across major exchanges
2Macro data layer: BTC/ETH ETF net flows, stablecoin market cap, exchange BTC balances, Fear & Greed index
3Free public API with 143 planned endpoints and tiered pricing ($19–$499/mo) coming soon
413-language and 15-currency support for international traders
5Whale alerts, vault tracking, and HYPE burn monitoring for on-chain/DeFi users

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Active crypto derivatives traders (perps/futures)

Pain points

Liquidation and funding data scattered across exchanges

Primary needs

Live liquidation alerts, funding rate comparison, OI heatmaps

Demographic

Quant & algo developers building trading systems

Pain points

No unified, documented real-time data feed

Primary needs

API access, historical series, exchange coverage transparency

Demographic

Crypto research analysts & fund managers

Pain points

Fragmented ETF flows and stablecoin data

Primary needs

Spot ETF net flows, exchange balances, market dashboards

Demographic

Hyperliquid / on-chain DeFi power users

Pain points

Hard to identify whales and smart money on-chain

Primary needs

Whale alerts, vault tracking, HYPE burn and smart-money feeds

Scout Review

Written by AI from measured evidence, scored out of 100.

CoinBoss is a well-executed crypto derivatives dashboard that knows exactly who it's for and mostly delivers. The data breadth — liquidations, OI, funding, ETF flows, stablecoin issuance, exchange balances, whale alerts — is genuinely wider than most peers, and the site loads fast enough to feel professional. The gaps are the on-ramp (no onboarding, no glossary) and the security story (open API, no CSP, no DMARC). For experienced traders it's a credible CoinGlass alternative; for newcomers it's a wall of numbers.

Measure by measure

Usability

Navigation covers every data vertical and 13 languages are supported, but there's no onboarding, glossary, or tooltip for funding rate or OI. New traders are dropped straight into the deep end.

Design

Dense but disciplined trading dashboard: red/green coding is consistent, metric cards have real hierarchy, and the 30-row table stays aligned. Heatmap labels and a headerless table hold it back from excellent.

Speed

Lighthouse desktop 100/100 and mobile 93/100 with 21ms TBT and 0.04 CLS. LCP at 3.1s on mobile is the only soft spot — otherwise genuinely snappy for a data-heavy dashboard.

Security

HTTPS, HSTS, frame protection, and most security headers are in place (9/12 checklist). Missing CSP and DMARC, and the free API requires no authentication — fine for now, risky at scale.

Accessibility

Lighthouse a11y 91/100 with 13 languages and 15 currencies supported. Failing audits on button accessible names, color contrast, and heading order — real issues, but the internationalization effort is above category norm.

Growth

Specific segment (derivatives traders, quant devs), a real wedge (unified liquidations + ETF flows + whale alerts), and a clear API monetization path. Category is crowded but the data-breadth angle is defensible.

Improvement areas

No onboarding, glossary, or tooltips — assumes users already know derivatives terminology
Missing CSP and DMARC headers; API currently requires no authentication
Three failing a11y audits: unnamed buttons, contrast, heading order
Dense 30-row table lacks sticky headers and row striping; heatmap labels too small

Design & Usability

CoinBoss nails the visual language of a serious trading terminal: consistent red/green semantics, metric cards with real hierarchy, and a table that stays readable at 30 rows. The problem is the on-ramp. There's no onboarding, no glossary, no tooltip explaining what OI-weighted funding actually means, and the only CTA is a Log in button. For experienced derivatives traders this is fine — they'll recognize the layout instantly. For anyone else, the site is a wall of numbers with a search bar. The 13-language selector is a genuine strength that most peers skip.

Speed & Security

Speed is the standout: Lighthouse desktop 100/100, mobile 93/100, TBT 21ms, CLS 0.04. LCP at 3.1s on mobile is the only blemish. Security is competent but not exceptional — HTTPS, HSTS, frame protection, and most headers are present (9/12 checklist), but there's no CSP, no DMARC, and the free API requires zero authentication. That's fine for a pre-revenue data product, but the moment paid tiers launch the auth story needs to be real. No SOC 2, no bug bounty, no security page.

Accessibility & Growth

Accessibility lands at 91/100 on Lighthouse with three real failures: unnamed buttons, contrast issues, and broken heading order. The 13-language and 15-currency support is above category norm and worth crediting. Growth is the more interesting story: CoinBoss targets a specific, paying segment (derivatives traders, quant devs, research analysts) with a real wedge — unified liquidations, OI, funding, ETF flows, stablecoin issuance, and whale alerts in one place. The 143-endpoint API roadmap with $19–$499/mo tiers is a clear monetization path. The category is crowded (CoinGlass, CoinAnk, Coinalyze) but the data-breadth angle is defensible.

Conclusion

If you're an active perps trader who already speaks funding rate and OI fluently, CoinBoss is worth a bookmark — the data breadth and speed are real. If you're newer to derivatives, wait for the glossary and onboarding that don't exist yet. The free API is the sleeper feature here; the dashboard is the demo, the 143 endpoints are the product.

Suggestions for improvement

Add an onboarding flow or glossary tooltip for funding rate, OI, and long/short ratio — the current page assumes fluency.
Ship a Content-Security-Policy header and a DMARC record; both are quick wins for the security checklist.
Add authentication to the API before paid tiers launch — the current open access won't survive a $499/mo commercial tier.
Fix the three failing a11y audits: accessible names on buttons, contrast ratios, and sequential heading order.

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	CoinBoss	CoinGlass	CoinAnk	Coinalyze
Liquidation tracking	Yes — 24h liquidations, long/short split, large liquidation stream	Yes — core feature, liquidation heatmaps and alerts	Yes — liquidation heatmaps	Yes — aggregated liquidation data
Open interest & funding rates	Yes — OI, OI 1h/24h %, funding rate per coin	Yes — OI and funding across exchanges	Yes — funding rate tracking	Yes — aggregated funding and OI
ETF flows & stablecoin data	Yes — BTC ETF net flow, stablecoin market cap, exchange balances	Partial — ETF flows available, stablecoin less prominent	Limited — not a core focus	No — derivatives-focused, no ETF/stablecoin layer
Public API	Free, no auth, 143 endpoints planned; paid tiers $19–$499/mo coming	Paid API tiers available	Limited public API	API available on paid plans
Whale / on-chain alerts	Yes — whale alerts, vault tracking, HYPE burn, smart-money feeds	Limited — some whale tracking	Yes — on-chain whale monitoring	No — derivatives analytics only
Multi-language support	13 languages, 15 currencies	Multiple languages (EN, CN, and others)	Limited — primarily EN/CN	English primarily