Cloak Proxy

com.subcloakPublished by subcloak.comv0.7.4Updated Oct 30, 2026

Read, mock, pause and replay HTTPS traffic captured by Cloak Proxy, a free macOS debugging proxy.

VerifiedSTDIODesktop onlyDeveloper ToolsSecurity & Monitoring

Overview

AI-generated overview

Lets an assistant drive Cloak Proxy, a free macOS debugging proxy, to read, mock, pause and replay captured HTTPS traffic.

What you can do
  • Read and inspect captured HTTPS traffic from the proxy, including requests grouped by app
  • Pause, mock, rewrite or replay requests and responses through the proxy's debugging rules
  • Work with the built-in API client's collections, environments, tests and flows
  • Export or share captured sessions in formats such as HAR, CSV, Postman and OpenAPI
  • Run automated or headless proxy sessions, with secrets redacted
When to use it
Useful when debugging web apps, APIs or AI agents on a Mac and you want an assistant to inspect, intercept or replay live HTTPS traffic instead of copying requests by hand. Also relevant for security testing such as replaying traffic as another user.
Requirements
A local macOS install of Cloak Proxy (macOS 14 Sonoma or later; Apple silicon or Intel), distributed as a signed and notarized app or via Homebrew. The MCP server runs locally over stdio as a desktop-only package. No account, license key or API key is required.
Before you install
The proxy decrypts HTTPS traffic and holds the root certificate's key on the Mac, so captured requests can contain tokens, cookies and private hostnames. The README states secrets are redacted in MCP use, but review what is exposed before connecting an assistant. Rules can rewrite, block or replay traffic, which changes what apps and testers see. The app's source is not public, though releases are signed and notarized.

Installation

In SourceWeft

  1. Open Cloak Proxy in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

[Image]

Cloak Proxy

See every request your Mac makes. A free, native macOS debugging proxy with an API client built in.

Download · Docs · Release notes · Report a bug

[Cloak Proxy capturing a Mac app's requests, then pausing one at a breakpoint and editing it]

Cloak Proxy decrypts HTTPS, lets you pause, mock and rewrite any request, catches apps that ignore the system proxy, and lets Claude or any MCP client drive it.

  • Free for life. No trial, no license key, no account, no sign-up. Optional: Personal Cloud ($3 a month or $25 a year) adds end-to-end encrypted sync between your Macs and share links; nothing in the app needs it.
  • Native and universal. Swift, for Apple silicon and Intel, macOS 14 Sonoma or later.
  • Local only. No telemetry. Traffic, collections and the root certificate's key stay on your Mac.

What it does

CaptureHTTPS decryption by host or app, traffic grouped by app with icons, HTTP/2, WebSocket, gRPC and GraphQL, and App Capture, a network extension for apps that ignore the system proxy (Go and Rust tools, curl, many Electron apps)
12 debugging toolsBreakpoints, Map Local, Map Remote, Rewrite (no code), Scripting, Block List, Allow List, Network Conditions, DNS Spoofing, No Caching, Mock Sets and Alerts. Any rule can be limited to chosen apps
DevicesOne-click iOS Simulator and Android setup, a certificate page with a QR code for iPhone, iPad and other devices, and Safari, Chrome and Firefox extensions that tag requests with their tab
API clientCollections, environments, tests, flows and monitors, stored as plain files you can keep in Git
InspectJSON tree, jq and JSONPath, Protobuf, request diffs, copy as cURL or 21 other languages, types from JSON
ShareHAR, Charles sessions, CSV, Postman collections and OpenAPI, with secret redaction
AI and securityLLM Inspector (tokens, cost, time to first token and prompt-cache misses for OpenAI, Anthropic, Gemini and Ollama) and an Authorization Matrix that replays traffic as another user to find IDOR bugs
AutomateAn MCP server with 148 tools for Claude Code, Cursor and Codex, with secrets redacted, and cloakctl for headless runs in CI
[A request paused at a breakpoint, being edited before it continues][The LLM Inspector showing tokens, cost and cache use for an AI API call]
[The Authorization Matrix comparing what each user gets back for each endpoint][Claude Code reading captured traffic through Cloak Proxy's MCP server]

A one-minute tour: youtu.be/ffpkFZRhO5g.

Install

  1. Download Cloak-Proxy.dmg from subcloak.com/apps/cloak-proxy or from Releases.
  2. Optional: check the file with shasum -a 256 ~/Downloads/Cloak-Proxy.dmg and compare it with the SHA-256 on the download page or in the release notes.
  3. Drag Cloak Proxy into Applications and open it. It's signed with a Developer ID and notarized by Apple, so it opens like any other app.

Step by step, with screenshots: Install Cloak Proxy.

Or with Homebrew: brew install --cask subcloak/tap/cloak-proxy.

Linux (beta): a .deb for Debian and Ubuntu, an RPM for Fedora and RHEL 10, or an AppImage or portable .tar.gz for any distribution with WebKitGTK 6.0, on x86_64 and ARM64, from the same download page or Releases. See Install on Linux.

Why it's free, and why the source isn't public

Subcloak is a security testing company: we test web apps, APIs and AI agents for a living, and a debugging proxy is open on our screens all day. We built Cloak Proxy for our own work and give it away. Security testing pays for it, so nothing in the app is held back to upsell and there's no data to sell: the app has no account, no analytics, and update checks are off until you turn them on. The one paid extra, Personal Cloud, is optional, end-to-end encrypted, and only for syncing between your own Macs and sharing links.

The app's source isn't public. The in-app SDK, CloakProxyKit, is MIT. Releases are signed and notarized by Apple, and SECURITY.md explains how to report issues.

This repository

This repository holds the issue tracker, release downloads and the changelog.

  • Bugs and feature requests: open an issue. Please remove tokens, cookies and private hostnames from anything you paste.
  • Security issues: don't open a public issue. See SECURITY.md.
  • Questions: the docs cover every feature, and the FAQ answers the common ones.

Built by Subcloak, an independent security practice for teams that ship.

Source: README.md at commit 513ac83

Tools

0
SourceWeft started this package once in an isolated sandbox, without credentials, to list its tools. That failed: the package type cannot run in the sandbox.

Version history

8
  1. v0.7.4LatestOct 30, 2026
  2. v0.7.2Oct 30, 2026
  3. v0.7.1Oct 29, 2026
  4. v0.5.5Oct 25, 2026
  5. v0.5.4Oct 25, 2026
  6. v0.5.2Oct 24, 2026
  7. v0.5.1Oct 22, 2026
  8. v0.5.0Oct 20, 2026

Score

40% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.