Head to head
rigor-mcp vs Semiotic
Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.
rigor-mcp
Aio.github.mrnh/rigor-mcpNo reviews yet
Verified statistical inference for AI agents: hypothesis tests, sequential testing, power.
Full listing
No reviews yet
Verified React chart generation: select, validate, repair, render, and inspect charts through MCP.
Full listingThe short version
Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. The safety scan favours rigor-mcp (92/100 against 82). Semiotic is hosted and callable through the gateway; rigor-mcp runs on your own machine. Semiotic has noticeably more public adoption.
| rigor-mcp | Semiotic | |
|---|---|---|
| User rating | No reviews yet | No reviews yet |
| Safety grade | A92/100 | B82/100 |
| Adoption | New | Widely used |
| GitHub stars | 1 | 2.7k |
| Downloads / week | – | 5.8k |
| Runs where | Your machine (local) | Hosted (remote) |
| Gateway-ready | No | Yes |
| Tools | — | 5 |
| Write actions | — | 1 |
| Price per call | Free | Free |
| Licence | MIT | Apache-2.0 |
| Last release | 2026-09-17 | 2026-09-19 |
| Category | Everything else | Everything else |