Head to head
Pubchem vs Index
Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.
No reviews yet
Search PubChem compounds, properties, safety data, bioactivity, and cross-references.
Full listing
No reviews yet
MCP instruction indexing server with search, CRUD, validation, and cross-repo knowledge promotion.
Full listingThe short version
Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. Both score close on the safety scan (93 and 86 out of 100). Pubchem is hosted and callable through the gateway; Index runs on your own machine. Pubchem has noticeably more public adoption.
| Pubchem | Index | |
|---|---|---|
| User rating | No reviews yet | No reviews yet |
| Safety grade | A93/100 | A86/100 |
| Adoption | Growing | Growing |
| GitHub stars | 9 | 0 |
| Downloads / week | 868 | 78 |
| Runs where | Hosted (remote) | Your machine (local) |
| Gateway-ready | Yes | No |
| Tools | 10 | — |
| Write actions | — | — |
| Price per call | Free | Free |
| Licence | Apache-2.0 | MIT |
| Last release | 2026-09-19 | 2026-09-15 |
| Category | Web search | Web search |