smart-mcp-proxy/mcpproxy-go v0.62.0 on GitHub

This release focuses on security improvements and bug fixes for OAuth authentication and quarantine functionality.

Bug Fixes

Security

Fixed quarantined servers over-reporting available tools in search results
Search index is now properly purged when quarantine is applied via configuration changes
Custom credential header names are now redacted in logs to prevent credential leakage

OAuth Authentication

Loopback callback port now remains stable for static OAuth clients, preventing authentication failures
Callback dispatch now properly routes by state parameter instead of faking success responses
Redirect URI configuration is now validated and more easily diagnosable
Fixed reachability issues with pinned callback ports

Web UI

Fixed incorrect display of quarantined servers as "faults" - quarantine is a security feature, not an error state
Resolved three presentation defects affecting the user interface

Desktop App (Personal Edition)

Eliminated permanent red notification badge that incorrectly persisted on system tray icon
Reduced badge size to a corner dot for less intrusive notifications

Platform Support

Unblocked end-to-end testing on Windows platform

These fixes improve security posture by ensuring quarantined servers cannot expose unauthorized tools and by protecting credential information in logs. OAuth reliability improvements address authentication stability issues that affected some deployment configurations.

Download Installers

Platform	Download	Notes
macOS (Apple Silicon)	Download DMG	Signed & Notarized - Recommended for M1/M2/M3/M4
macOS (Intel)	Download DMG	Signed & Notarized
Windows (64-bit)	Download Setup	Setup wizard
Windows (ARM64)	Download Setup	For ARM Windows devices
Linux Debian/Ubuntu (AMD64)	Download .deb	`sudo apt install ./mcpproxy_*.deb`
Linux Debian/Ubuntu (ARM64)	Download .deb	For ARM64 (Raspberry Pi etc.)
Linux Fedora/RHEL (AMD64)	Download .rpm	`sudo dnf install ./mcpproxy-*.rpm`
Linux Fedora/RHEL (ARM64)	Download .rpm	For ARM64
Linux (AMD64) — tarball	Download tar.gz	Binary only
Linux (ARM64) — tarball	Download tar.gz	Binary only

Homebrew (macOS/Linux):

brew install smart-mcp-proxy/mcpproxy/mcpproxy

Other download options (auto-update URLs, archives)

Auto-update URLs (always points to latest):

Binary archives (this version):

Installation Instructions

Windows

Download the installer for your architecture
Run mcpproxy-setup-*.exe
Follow the installation wizard (requires Administrator privileges)
Launch "MCPProxy" from Start Menu

macOS

Download the signed DMG for your Mac
Double-click the DMG to mount it
Double-click the PKG installer inside
Follow the installation wizard
Launch mcpproxy.app from Applications folder

Linux / Manual Installation

Download the appropriate archive
Extract: tar -xzf mcpproxy-*.tar.gz
Make executable: chmod +x mcpproxy
Run: ./mcpproxy serve

Platform Support & Usage

Platform Support

macOS: Full system tray support with menu and icons
Windows: Full system tray support with menu and icons
Linux: Headless mode only (CLI)

Usage

GUI (Recommended):

Launch mcpproxy.app from Applications (auto-starts core server)
Manages server via system tray menu

CLI:

mcpproxy serve                           # Start server
mcpproxy serve --listen 127.0.0.1:8081  # Custom port
export MCPPROXY_API_KEY=your-secret-key  # Set API key