Apps and tools

The tools we build, and use every day.

We test apps and AI agents for a living. These are the tools that came out of that work: a debugging proxy for the Mac, and two free checks for MCP servers.

Cloak Proxy Free for life

Mac app · Apple silicon and Intel

See every request your Mac makes.

A native macOS debugging proxy with an API client built in. Decrypt HTTPS, pause, mock and rewrite any request, catch the apps that skip the proxy, and let Claude drive it through MCP.

Decrypts HTTPS
per app or per domain
10 debugging tools
breakpoints, mocks, rewrites
API client built in
11 protocols, runner, load tests
82 MCP tools
Claude can drive it

Download free See Cloak Proxy Docs

Coming toiOSWindowsLinuxAndroid

Cloak Proxy · All Traffic

Capturing

GETapi.example.com/v1/users/4220084 ms
GETtiles.example.com/v2/radar/8/181/116.png20044 ms
GETauth.example.com/oauth/userinfo40158 ms
POSTapi.example.com/v1/cart/items201112 ms
GETstatus.example.com/health20412 ms
GETcdn.example.com/assets/app.js20031 ms

GEThttps://api.example.com/v1/users/42200 · 84 ms

{
  "id": 42,
  "name": "Ada Park",
  "plan": "pro",
  "verified": true
}

December 2026

Open-source CLI

Scopegauge

Compares the OAuth scopes an MCP server requests with the ones its tools actually use.

Requested vs used, per tool
Runs in CI
Free and open source

Open Scopegauge

● Live

Web tool

Free MCP server check

Paste an MCP server URL to see what a connected AI agent gets by default, checked against the MCP spec.

Public metadata only
No sign-up
Usually under ten seconds

Open Free MCP server check

Cloak Proxy is free for life on the Mac, with iOS, Windows, Linux and Android on the way.

Want us to look at your agent?

Thirty minutes, no slides. Tell us what your agent or app touches and when you need an answer. You'll have a fixed-price proposal within a working day.

Book a 30-minute call hello@subcloak.com