M
Metis
Sign in
Try free

Metis

“Find what makes your app expensive before it scales.”

Run a scan and see where your app starts getting expensive.

Start for freeWatch a scan
Product

The cost layer your frontend never had

Metis stays calm on the page and serious in the report. It shows what most profilers miss: what those requests mean in real cost.

Hover-first workflow

Metis stays light on the page, then opens the side panel when you want more context.

Cost and control

It frames waste in plain language: what costs money now, what gets worse as you scale, and what to fix first.

Stack-aware signals

Frameworks, hosts, AI providers, and third-party scripts are detected so the report feels specific, not generic.

Built for real teams

The website handles account and beta access. The extension stays focused on scans, scores, and reports.

The Problem

Your frontend is bleeding money every session

Extra requests, noisy third-party scripts, and AI-heavy interactions add up quietly. Metis makes that cost visible before it turns into cleanup work.

24avg

API calls per page load

3.2MB

avg payload per session

$0.004

avg session cost, unoptimised

86%

of teams don't know their frontend cost

How it fixes it

Here's exactly what to fix

No vague advice. You get ranked fixes, clear explanations, and a report built for how engineering teams actually work.

Duplicate API RequestsFix First
Save ~$8/mo

Root Cause

Multiple components trigger the same fetch independently on mount with no deduplication.

Fix

Add SWR or React Query with a shared cache key. Concurrent callers share one in-flight request.

AI API Call Frequency
Save ~$11/mo

Root Cause

AI completion handler fires on onChange with no debounce. Each keystroke triggers one API call.

Fix

Debounce by 400ms with useDebouncedCallback. Cache identical prompts with a simple Map for 5 min.

Memory Leak Pattern
Save ~$5/mo

Root Cause

useEffect hooks add event listeners but return no cleanup function.

Fix

Return cleanup from each useEffect: return () => window.removeEventListener(...). Use AbortController for fetch.

The result

Start free
Fix in minutes

Start with a scan. Go deeper through Plus Beta and staged features when you need more.

✓
Score any running page in under 2 seconds
✓
See exactly what's costing you, per session
✓
Get ranked code fixes with savings estimates
✓
Keep account settings on the website and extension settings in the extension
24
24Minimal Risk

After applying 3 fixes, $24/mo saved