Free, open-source token safety scanner — 90+ checks · 9 scam patterns · 10+ APIs · zero signup
Live demo · Quick start · What it detects · How it works · Data sources · Contributing
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ChainLens is a client-side-only crypto token safety scanner. Paste any token address and it cross-references 10+ independent data sources to detect scams, honeypots, rug pulls, wash trading and insider manipulation — then returns a single 0–100 trust score with a plain-English verdict.
- No signup. No API keys. No wallet connection. No backend.
- Pure HTML/CSS/JS — clone it, open
index.html, done. - Every API call goes directly from your browser to public data sources. Your scans never touch a server.
Try it now:finland93.github.io/ChainLens — nothing to install, runs entirely in your browser.
Every token is guilty until proven innocent.
| Feature | ChainLens | Typical scanners |
|---|---|---|
| Checks per token | 90+ | 10–25 |
| Independent API sources | 10+ | 1–2 |
| Bot / wash-trade detection | ✅ | ❌ |
| 300-trade pattern analysis | ✅ | ❌ |
| Deployer "serial rugger" detection | ✅ | ❌ |
| LP lock expiry warning | ✅ | ❌ |
| Copycat / clone detection | ✅ | ❌ |
| Scam pattern matching | 9 patterns | 0–2 |
| Price | Free | Freemium |
| API keys required | None | Often |
| Backend / data collection | None | Varies |
Paste any address — ChainLens auto-detects the chain via DexScreener.
| Chain | Security sources |
|---|---|
| Solana | RugCheck + GoPlus + Jupiter + Solscan + Birdeye |
| Ethereum | Honeypot.is + GoPlus + De.Fi |
| BNB Chain | Honeypot.is + GoPlus |
| Base | Honeypot.is + GoPlus |
| Category | Checks | What it catches |
|---|---|---|
| 🤖 Bot Activity | 12 | Buy/buyer ratio, volume/liquidity, zero sells, spam |
| 📊 Trade Patterns | 12 | Identical volumes, same-second trades, buy streaks, size uniformity |
| 🔒 Contract Security | 25+ | Honeypot, hidden owner, mint, freeze, blacklist, proxy, tax |
| 👥 Holder Distribution | 12 | Concentration, clusters, insiders, burn tricks, exchange filtering |
| 💧 Liquidity Health | 8 | LP lock/burn, lock expiry, deployer ownership, FDV ratio |
| 📈 Price Behavior | 7 | Pump & dump, crash, volatility, Jupiter cross-validation |
| 🌐 Social / Meta | 5 | Logo, website, Twitter, Telegram, CoinGecko listing |
| 🕵️ Deployer History | 8 | Previous tokens, dead-token rate, GoPlus wallet flags |
- 🍯 Sell Restriction (Honeypot) — cross-validated by up to 3 sources
- 💧 Unprotected Liquidity — LP lock/burn verification
- 📈 Rapid Rise & Fall — pump & dump detection
- 🔄 Artificial Volume — wash-trading indicators
- 👥 Supply Concentration — sybil / insider clustering
- 🔁 Serial Rugger — deployer track record
- 🎭 Copycat / Minimal Presence — clone detection
- 🕳️ Gradual Liquidity Drain — slow-rug detection
- 🥪 MEV / Sandwich Risk — vulnerability assessment
- DexScreener identifies the chain and finds the most-liquid trading pair.
- GeckoTerminal provides pool data and up to 300 recent trades (with a CORS-proxy fallback).
- Security APIs are queried in parallel — RugCheck, Honeypot.is, four GoPlus endpoints, Jupiter, Solscan, Birdeye, De.Fi and CoinGecko.
- The analysis engine runs all 90+ checks across 8 categories and matches the 9 scam patterns.
- A 0–100 score with a narrative verdict is rendered across 8 result tabs, plus a downloadable share card.
Every scan is resilient: any API can fail and the scan still completes, with an API Transparency tab showing exactly which sources responded.
Fastest way — open the live version → No install, no clone; it runs entirely in your browser at finland93.github.io/ChainLens.
Prefer to run it yourself? It's static — no build tools, no dependencies.
# Clone
git clone https://github.com/Finland93/ChainLens.git
cd ChainLens
# Option A — just open it
open index.html # macOS (use "start index.html" on Windows)# Option B — serve locally (recommended; avoids file:// CORS quirks)
python3 -m http.server 8000
# → http://localhost:8000# Option C — any static server
npx serve .Then paste a token address (try BONK on Solana or PEPE on Ethereum) and hit Scan.
Because it's fully static, you can host it anywhere — GitHub Pages, Netlify, Vercel, Cloudflare Pages — by serving the repository root. No environment variables, no server. (The live demo itself runs on GitHub Pages straight from this repo.)
ChainLens/
├── index.html # Scanner app (single page)
├── css/
│ └── core.css # All styles
├── js/
│ ├── chains.js # Chain config + token-logo fallbacks
│ ├── api.js # API layer — 10+ sources, CORS proxy, retry
│ ├── analysis.js # Analysis engine — 90+ checks, 9 patterns
│ ├── feed.js # Live "new tokens" feed (60s refresh)
│ ├── render.js # UI rendering — 8 tabs + share card
│ ├── storage.js # localStorage history/watchlist (zero-knowledge)
│ └── app.js # App controller — scan flow, rate limiting
├── sw.js # Service worker (offline shell cache)
├── site.webmanifest # PWA manifest
├── robots.txt
└── docs/ # README images
| Score | Verdict | Meaning |
|---|---|---|
| 85–100 | LOW RISK | Few concerns. Standard due diligence applies. |
| 65–84 | MODERATE RISK | Some concerns detected. Research further. |
| 35–64 | ELEVATED RISK | Multiple warning signs. Extreme caution. |
| 15–34 | HIGH RISK | Serious issues. Warning banner shown. |
| 0–14 | EXTREME RISK | Critical issues. Do not interact. |
Critical override — a single critical issue caps the score at 40, two at 25, three or more at 15. When no security data is available, the score is capped at 40 with a warning so a lack of data never reads as "safe."
Zero-knowledge by design:
- No backend server, no database, no accounts, no wallet connection.
- No analytics, no ads, no tracking.
- History and watchlist live in your browser's
localStorage— on your device only. - All API requests go straight from your browser to the public data sources.
Contributions are welcome — see CONTRIBUTING.md.
- 🐛 Report a bug — open an issue
- 💡 Suggest a feature — open an issue
- 🔧 Submit code — fork → branch → PR
- 🌍 Translate — help reach more people
- ⭐ Star the repo — it genuinely helps visibility
Please also read the Code of Conduct and Security Policy.
ChainLens is an independent research tool. It does not constitute financial advice. No score guarantees a token's safety or profitability. Cryptocurrency carries significant risk, including total loss of capital. Always do your own research.
MIT License with Attribution — free to use, modify and distribute, with a request to credit ChainLens and link back to this repository in public-facing derivatives.
Built for traders who'd rather verify than trust. ⭐ the repo if it saved you from a bad trade.