mcpproxy-go

The demo above shows theembedded web UI. The MCPProxycore is a single binary for macOS, Linux, and Windows— the web UI ships inside it, with no extra service to run. OnmacOS, an optionalmenu‑bar appadds one‑click convenience (start/stop, server health, quarantine, logs).

Download the latest DMG installer for your architecture:

Download the latest Windows installer for your architecture:

- Installs bothmcpproxy.exe(core server) andmcpproxy-tray.exe(system tray app) to Program Files
- Adds MCPProxy to your system PATH for command-line access
- Creates Start Menu shortcuts
- Supports silent installation:.\mcpproxy-setup.exe /VERYSILENT

# macOS — GUI tray app (recommended): brew install --cask smart-mcp-proxy/mcpproxy/mcpproxy # macOS / Linux — headless CLI only: brew install smart-mcp-proxy/mcpproxy/mcpproxy

The cask installs the menu-bar app (bundles the CLI); the formula is the CLI binary only. Both update viabrew upgrade.

Linux (Debian/Ubuntu) — apt repository, auto-updates viaapt upgrade:

- dmg-darwin-arm64(Apple Silicon Macs)
- dmg-darwin-amd64(Intel Macs)
- versioned-linux-amd64,versioned-windows-amd64(other platforms)

Note: Prerelease builds are signed and notarized for macOS but contain cutting-edge features that may be unstable.

go install github.com/smart-mcp-proxy/mcpproxy-go/cmd/mcpproxy@latest

mcpproxy serve # starts HTTP server on :8080 and shows tray

Create or edit~/.mcpproxy/mcp_config.json:

"MCPProxy": { "type": "http", "url": "http://localhost:8080/mcp/" }

Once connected, your agent sees a handful of built-in MCPProxy tools instead of hundreds of upstream schemas. A typical session has three beats — discover, call, audit — plus an optional preflight gate for unattended automations.

1. Discover — spend one query, not your context window

The agent asks for what it needs in plain keywords viaretrieve_tools:

{ "query": "create github issue", "limit": 5 }

MCPProxy runs a BM25 search across every connected server and returns only the top-ranked matches — each with acall_withhint recommending the right call variant for its annotations:

mcpproxy activity list # everything, newest first mcpproxy activity list --request-id <id> # one workflow, correlated

Gate automations before they burn tokens

For recurring headless jobs (cron, CI, n8n), don't let the agent discover a missing tool the expensive way. One preflight command checks that every required tool is ready — without contacting any upstream server — and reports exactly why when it isn't (server quarantined, tool changed since approval, OAuth expired, typo'd id):

mcpproxy tools preflight gh-ops:sync_issues slack:post_message --wait 10s case $? in 0) run-agent-session ;; # all ready — go 10) exit 75 ;; # transient (server starting) — let the next cron tick retry 11) page-operator ;; # blocked — someone must approve / enable / log in 12) fail-pipeline ;; # unknown tool id — the automation itself is misconfigured esac

MCPProxy works with HTTP by default for easy setup. HTTPS is optional and primarily useful for production environments or when stricter security is required.

💡 Note: Most users can stick with HTTP (the default) as it works perfectly with all supported clients including Claude Desktop, Cursor, and VS Code.

# Method 1: Environment variable export MCPPROXY_TLS_ENABLED=true mcpproxy serve # Method 2: Config file # Edit ~/.mcpproxy/mcp_config.json and set "tls.enabled": true

2. Trust the certificate(one-time setup):

- MCP endpoint:https://localhost:8080/mcp
- Web UI:https://localhost:8080/ui/

For Claude Desktop, add this to yourclaude_desktop_config.json:

We welcome issues, feature ideas, and PRs!

make dev-setup # Install swag, frontend deps, Playwright brew install prek # Install pre-commit hook runner (or: uv tool install prek) prek install # Install pre-commit hooks prek install --hook-type pre-push # Install pre-push hooks

Run hooks manually:prek run --all-files

make build # Build frontend + backend make swagger # Regenerate OpenAPI spec make test # Unit tests make test-e2e # E2E tests make lint # Run linters

This is a web browser that enables your coding agent, such as Claude Code, to visit websites on your behalf and assist you in identifying bugs or creating UI test cases.

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