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Citadel vs Living Brain
Two Memory & Context tools whose own descriptions overlap (shared terms: layer, persistent, memory). Here's what each project says it does and the public numbers, side by side, so you can pick one in a minute instead of reading two READMEs.
| Citadel | Living Brain | |
|---|---|---|
| What it says it does | Operating layer for Claude Code and Codex: persistent project memory, intent routing and orchestration, installable as a Codex plugin. | A shared, persistent memory layer for AI: carry the same context across ChatGPT, Claude, Gemini, Codex, Claude Code and Cursor through MCP or an API. |
| Maker | SethGammon | ChatAndBuild (Christel Buchanan) |
| GitHub stars | 931 | 6 |
| Last push | pushed 2026-11-12 (this week) | pushed 2026-10-27 (last 30 days) |
| License | MIT | No license file |
| Language | JavaScript | n/a |
| Packaged as | plugin | MCP server |
| Works with | Codex, Claude Code | Codex, Claude Code, ChatGPT, Cursor |
| Install | codex plugin marketplace add SethGammon/Citadel --ref v1.4.5 | No copyable command in the README |
| Editor's pick | No | No |
| In our catalog since | 2026-10-28 | 2026-11-10 |
| Source | github.com/SethGammon/Citadel | github.com/ChatAndBuild/livingbrain |
| Our page | Citadel → | Living Brain → |
The differences that matter
- Attention: Citadel has 931 GitHub stars to Living Brain's 6 (about 155×).
- Activity: Citadel was pushed more recently (2026-11-12 vs 2026-10-27).
- License: Citadel is MIT, Living Brain is No license file.
- Packaging: Citadel ships as plugin; Living Brain as MCP server.
Who each one suits
Citadel, if…
- You use Codex or Claude Code: the project's own description or install command targets it.
- You want something you install yourself; the install command doesn't point at a hosted endpoint.
- You need a permissive license (MIT) for work or commercial use.
- You want a project that's actively being worked on right now.
- You'd rather go with a widely watched project (931 stars).
Living Brain, if…
- You use Codex or Claude Code or ChatGPT or Cursor: the project's own description or install command targets it.
- You're only trying it out: there's no recognized license file, so reuse rights are unclear.
- You're happy to be an early user of a small project.
So which one?
We haven't run both, so we won't crown a winner. Use the list above to rule one out, then read its README and recent commits before installing. Anything that runs commands on your machine deserves a look at the code.
Related
Citadel alternatives · Living Brain alternatives · Citadel vs AgentOps · AgentOps vs Living Brain · Living Brain vs Ether
More: Memory & Context plugins · best Memory & Context plugins, ranked · all comparisons
Data from GitHub and each project's README, checked 2026-11-15. We haven't installed or audited these, and stars measure attention, not quality. Paid placements never change this page. Spot a mistake? hello@pickaplugin.com
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