Open-source and source-available CLI / MCP tools.
I build these mostly for the fun of it: small, sharp tools for my own agent workflows, released when they are useful enough that someone else might want them too.
brew tap MikkoParkkola/tap && brew install trvl mcp-gateway nab nowifiaxterminator is macOS-only:
brew install axterminator- One MCP endpoint for many backends: mcp-gateway
- Travel search and trip planning: trvl
- Authenticated web fetch, local ASR, or URL watching: nab
- macOS GUI automation: axterminator
- Captive portal bypass: nowifi
- Cut your Claude Code token bill: glyphdown
- Translate any web page, offline if you want: translate-browser-extension
- Stop your prose reading like a bot wrote it: anti-ai-tell
| Tool | License | Platform | What it does |
|---|---|---|---|
| trvl | Source-available (PolyForm-Noncommercial-1.0.0) |
macOS, Linux | AI travel agent -- flights, hotels, ferries, 57 MCP tools. Free, no API keys. |
| axterminator | Source-available (PolyForm-Noncommercial-1.0.0) |
macOS | macOS GUI automation -- 30 MCP tools, background interaction, audio/camera capture. |
| mcp-gateway | Dual-license (MIT + PolyForm NC EE modules) |
macOS, Linux | Universal MCP gateway -- single endpoint, fixed small tool surface, many backends. |
| nab | Mixed per-file (MIT + PolyForm-NC) |
macOS, Linux | Token-optimized HTTP client for LLMs -- cookies, anti-bot, ASR, URL watching. |
| nowifi | Open source (AGPL-3.0-only) |
macOS, Linux | Captive portal bypass -- one command, 27 techniques, auto-restores on Ctrl+C. |
| glyphdown | Source-available (PolyForm-Noncommercial-1.0.0) |
macOS, Linux | Token-cost reduction for Claude Code -- lossless output compression, context dedup, stacks on prompt caching. |
| translate-browser-extension | Open source (GPL-3.0-or-later) |
Chrome, Firefox | Full-page translation -- 10+ providers, including local offline models via WebAssembly. |
| anti-ai-tell | Open source (MIT) |
Any AI client | Writing discipline for AI-assisted prose -- prompt constraints, linter, judgment checklist. |
There are two good setup paths:
-
Install tools directly into your MCP client when you only need one or two servers:
trvl mcp install --client claude-code nab mcp install --client claude-code axterminator mcp install --client claude-code # macOS only -
Use
mcp-gatewayas the front door when you want one endpoint for many tools:mcp-gateway setup wizard --configure-client mcp-gateway serve
If you prefer to edit config by hand, the gateway entry is:
{
"mcpServers": {
"gateway": { "type": "http", "url": "http://localhost:39400/mcp" }
}
}Replace claude-code with your client where needed (cursor, vscode, zed, and others are supported in the individual repos).
- Homebrew Tap
- trvl -- axterminator -- mcp-gateway -- nab -- nowifi -- glyphdown -- translate-browser-extension -- anti-ai-tell