activeing123/mcptoon
★ 422 stars
Covered in week 2026-W34 · the 2026-08 report
One zero-dependency MCP gateway CLI for every server and agent skill. Token optimization, tool discovery and context compression: 71,929 -> 581 tokens (-99.2%, measured), schemas stay out of context. One config for Claude Code, Codex, Cursor, every agent. 561KB, pure Python. | 零依赖 CLI：管所有 MCP 工具与技能，工具发现省 99.2% token。
What mcptoon is
Tools and skills configured in any single agent just work across Cursor, Claude Code, Codex, and 103+ desktop & terminal agents. Pioneering on-demand schema retrieval out of the box — no more stuffing context windows, saving 99% context tokens . Zero dependencies, pure local, offline-first.
From the repository README · read it on GitHub →
Transcript
mcptoon turns verbose MCP tool discovery from 10,000 tokens down to 350. This pure Python CLI replaces JSON with TOON format, cutting tool listings by 97% and structured results by more than half. It connects to any MCP server via stdio or HTTP, supports stdin, doctor commands, fuzzy matching, and slim mode. Works with Claude Code, Cursor, CatPaw, and other AI agents across every platform.