Free smart contract analytics for Avalanche C-Chain.
Paste any contract address — get instant analytics: transaction volume, gas usage, function breakdown, error logs, caller analysis, AI security audits, and live network stats. No signup. No API key. No cost.
Live: avaxlens.vercel.app
- Paste any C-Chain contract address into the search bar
- AvaxLens fetches transaction history from Routescan + contract ABI from Snowtrace
- Server processes up to 10,000 transactions: decodes function calls via viem, computes metrics, groups by day/function/caller
- Dashboard renders pre-computed analytics (~2KB JSON) — charts, tables, and metrics load instantly
All processing happens server-side. The client receives ready-to-display data — no raw transaction parsing in the browser.
User → Next.js API Route → Snowtrace (ABI) + Routescan (txs) → viem decode → Analytics JSON → Dashboard
| Tab | What it shows |
|---|---|
| Overview | Transaction volume charts, success/fail trend, gas metrics, top functions |
| Transactions | Paginated list with decoded function names, status filters, tx hash search |
| Functions | Call count charts, gas usage comparison, per-function success rates |
| Errors | Decoded revert reasons, error distribution, affected function mapping |
| Callers | Top callers ranked by activity, distribution charts, sortable tables |
| AI Audit | Security analysis with risk scoring (A-F grade), findings, recommendations |
- Live Network Stats — AVAX price, gas price, TVL in header (DeFiLlama + C-Chain RPC, auto-refresh 30s)
- Period Selection — 7d / 30d time ranges with instant switching
- CSV Export — download analytics per tab as CSV file
- Shareable Links — share dashboard via URL with period and tab preserved
- Contract Comparison — side-by-side feature comparison with competitors
- Recent Searches — recently viewed contracts saved locally
- Data Coverage — shows actual date range and API limits transparently
- Health Check — live API status indicator in footer
- Mobile Responsive — all tables and charts work on mobile
- 3 independent security audits — score 10/10, 0 open findings
- React Query for client-side caching (dedup, background refetch, stale/fresh)
- Rate limiting (30 req/min per IP), 5 security headers (CSP, HSTS)
- Server-side LRU cache (ABI: 24h, analytics: 5min, transactions: 60s)
- Input/response validation, fetch timeouts on all external API calls
| Layer | Technology |
|---|---|
| Framework | Next.js 16 (App Router, Turbopack) |
| Language | TypeScript 5 |
| Styling | Tailwind CSS 4 |
| Data Fetching | React Query (@tanstack/react-query) |
| Charts | Recharts (lazy-loaded, SSR-safe) |
| ABI Decoding | viem |
| Deployment | Vercel (auto-deploy from GitHub) |
| API | Purpose | Rate Limit |
|---|---|---|
| Snowtrace | Contract ABI, name, verification status | 2 req/sec |
| Routescan | Transaction history (up to 10k txs) | 2 req/sec |
| DeFiLlama | AVAX price, Avalanche TVL | No limit |
| Avalanche RPC | Gas price (eth_gasPrice) | Public |
No API keys required. All APIs are free tier.
Test with these verified contracts:
| Name | Address | Type |
|---|---|---|
| Trader Joe | 0x60aE616a2155Ee3d9A68541Ba4544862310933d4 |
DEX |
| Trader Joe V2 | 0xb4315e873dBcf96Ffd0acd8EA43f689D8c20fB30 |
DEX |
| Aave V3 | 0x794a61358D6845594F94dc1DB02A252b5b4814aD |
Lending |
| WAVAX | 0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7 |
Token |
Or paste any C-Chain contract address at avaxlens.vercel.app.
npm install
npm run dev # Dev server on localhost:3000
npm run build # Production buildsrc/
app/ # Next.js App Router pages + API routes
lib/ # Business logic, APIs, processing, cache, hooks
components/ # React components (layout, dashboard, charts, tables, ui)
data/ # Static data (AI audit results)
Built by Alex Vega (development) and Mark (design & documentation) for Avalanche Build Games 2026.
MIT