AI Plugin IndexJacobian vs Jay Code
Jacobian and Jay Code are both science and health MCP servers. Jay Code scores higher (94 vs 83 out of 100). Jay Code has more GitHub stars (78k), and Jay Code was updated more recently (yesterday). The table compares them side by side.
| Jacobian | Jay Code | |
|---|---|---|
| Score | 83 / 100 | 94 / 100 |
| What it does | Executable mathematics and independent verification for AI agents. | Streamlined AI CLI orchestration engine with mathematical rigor and enterprise-grade reliability |
| Publisher | Community: morluto | Verified: npm:jay-code |
| Grades | Maintenance A, Licence A, Quality B | Maintenance A, Licence A, Quality A |
| npm downloads a week | Not on npm | 229 |
| Runs | Local | Local |
| Works with | Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, VS Code, Windsurf | Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, VS Code, Windsurf |
| GitHub stars | 306 | 77,500 |
| Last commit | 19 Oct 2026 | 20 Oct 2026 |
| Licence | MIT | MIT |
| Listed since | 19 Oct 2026 | 20 Oct 2026 |
| Install Jacobian | Install Jay Code |
Questions
Is Jacobian or Jay Code more popular?
Jay Code has more GitHub stars: 77,500.
Can I use Jacobian and Jay Code together?
Yes. AI assistants can load several MCP servers at once. Install both and the assistant picks the right one for each task.