head to head · open source
loopx vs vibe-check-mcp-server
loopx has 6,548 GitHub stars, 619 forks, 102 open issues and last shipped yesterday. vibe-check-mcp-server has 504 stars, 67 forks, 5 open issues and last shipped 4 days ago. loopx leads on adoption by 1,199% (6,548 vs 504 stars). loopx is written in Python under Apache-2.0; vibe-check-mcp-server is written in TypeScript under MIT. loopx has attracted 9% as many forks as stars, vibe-check-mcp-server 13%. loopx was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| loopx | vibe-check-mcp-server | |
|---|---|---|
| GitHub stars | ★ 6.5K | ★ 504 |
| License | Apache-2.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-04 | 2026-11-01 |
| Forks | ⑂ 619 | ⑂ 67 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick loopx if
- You weight community size — 6.5K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick vibe-check-mcp-server if
- You want the vibe-check-mcp-server feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and vibe-check-mcp-server fits your workflow better
About loopx
LoopX The open, provider neutral, stateful control plane for long horizon agents. Runs on top of Codex, Claude Code, Cursor, and other agent harnesses. LoopX preserves objectives, gates, todos, evidence, quota, and handoffs across turns; the harness executes bounded work. Public website · Blog · Docs · Developer Book · Try LoopX · See real loops · How it works · 简体中文 Open and provider neutral, LoopX is a lightweight state kernel and local first control plane for loop engineering. It runs on top of different agent harnesses rather than replacing them, providing the long horizon state, semantic decisions about…
read the full loopx overview →
About vibe-check-mcp-server
Vibe Check MCP This project is in maintenance mode. Active feature development has ended; only maintenance patches (security and bug fixes) are published. v2.9.0 is the latest maintenance release. The server remains fully functional. Community forks and contributions are welcome under the MIT license. KISS overzealous agents goodbye. Plug & play agent oversight tool. Based on research: In our study agents calling Vibe Check improved success +27% and halved harmful actions 41% Featured on PulseMCP “Most Popular (This Week)” • 5k+ monthly calls on Smithery.ai • research backed oversight • STDIO + streamable HTTP…
read the full vibe-check-mcp-server overview →
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Frequently asked questions
Is loopx or vibe-check-mcp-server more popular?
loopx has 6,548 GitHub stars and vibe-check-mcp-server has 504. loopx has the larger community by that measure.
Are loopx and vibe-check-mcp-server free?
Both are open source. loopx is licensed under Apache-2.0 and vibe-check-mcp-server under MIT. Neither carries a licence fee.
What is the difference between loopx and vibe-check-mcp-server?
loopx is written in Python and vibe-check-mcp-server in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, loopx or vibe-check-mcp-server?
Choose loopx if you want the larger community (6,548 stars) or its Apache-2.0 licence terms. Choose vibe-check-mcp-server if its feature set, stack or MIT licence fits better. Both are self-hostable.