Api Lens – Smart Http Ins

API Lens – Smart HTTP Inspector for Developers

API Lens gives developers a clear, real-time view of every HTTP & HTTPS request a webpage makes. Built for API debugging, performance analysis, and modern microservice workflows, API Lens turns complex network traffic into actionable insights through a clean, intuitive UI.

Whether you’re working on frontend apps, backend APIs, or microservices, API Lens helps you identify slow endpoints, retry storms, authentication issues, and noisy requests instantly—without switching tools.

Everything runs locally in your browser.
✅ No tracking
✅ No external servers
✅ No data sharing

🚀 Core Features
🔍 Real-Time Network Inspection

Live capture of HTTP & HTTPS requests

Instant visibility into GET, POST, PUT, DELETE calls

⚙️ Advanced Filtering

Filter by 2xx, 3xx, 4xx, 5xx

Dedicated views for:

Slow APIs

Retries

Noisy endpoints

⏱️ Performance & Latency Insights

Timing breakdowns

Visual endpoint heatmap

Color-coded latency indicators

🔁 Retry & Stability Detection

Automatically detects repeated retries

Helps identify unstable or misconfigured APIs

🔐 Authentication & Security Insights (NEW 🔥)

Detect missing Authorization headers

Identify JWT / API-Key issues

Warns when CSRF tokens are missing

Highlights low-trust endpoints

🧹 Smart Noise Detection (NEW 🔥)

Automatically flags noisy or irrelevant requests

One-click Ignore Noise mode

Focus only on important API traffic

🧪 Request Replay

Replay API calls instantly

Test backend behavior without leaving the browser

📦 Full Request Details

Headers

Payloads

Query parameters

Response data

📤 Export & Save

Export captured requests as JSON

Bookmark important API calls using local storage

🎨 Modern Developer-Friendly UI

Dark mode

Glass mode

Clean, distraction-free layout

🧠 Why Developers Choose API Lens

✔ Debug API failures faster
✔ Understand frontend ↔ backend communication
✔ Detect slow or retrying APIs early
✔ Inspect authentication flows with clarity
✔ Reduce debugging time in microservice systems

API Lens is designed to simplify network debugging without overwhelming developers.

🛠️ How It Works

Install API Lens – Smart HTTP Inspector

Click the API Lens icon and attach it to the active tab

Browse normally—requests are captured automatically

Filter, inspect, replay, or export anytime