Free
Public access
Browse QDB, search species and reactions, and download a limited number of reaction cross-section files after signing in.
20
reaction files per 30 days
Membership
Choose the right QDB access
Search and browse public data for free, use Gold for full chemistry downloads and modelling tools, or add Platinum support for bespoke cross-section calculation work.
Gold
Full membership
Gold membership unlocks the full data workflow, including unrestricted API use, reaction downloads, chemistry set downloads, and Quantemol Global Model access.
Unlimited
membership downloads and API requests
Platinum
Bespoke data support
Platinum includes Gold access and supports teams that need new calculated cross-section datasets delivered with reporting and flexible formats.
Gold+
membership access plus bespoke calculation support
Comparison
Feature comparison
Contributors keep their existing dataset download privileges as a non-expiring status. Staff and superusers are unrestricted for all downloads and features.
| Feature | Free | Gold | Platinum |
|---|---|---|---|
| Browse public species, reactions, references, and chemistry pages | Included | Included | Included |
| Direct reaction cross-section downloads | 20 / 30 days | Unlimited | Unlimited |
| API key | Not included | Included | Included |
| Reaction cross-section API requests | Not included | Unlimited | Unlimited |
| Chemistry API bundle requests | Not included | Unlimited | Unlimited |
| Pre-assembled chemistry set downloads | Not included | Unlimited | Unlimited |
| Dataset comparison, chemistry details, and estimator tools | Not included | Included | Included |
| Bespoke calculated cross-section datasets | Not included | Not included | Included |
Quantemol Global Model
| Feature | Free | Gold | Platinum |
|---|---|---|---|
| Dynamic chemistry set generation | Not included | Included | Included |
| Boltzmann solver | Not included | Included | Included |
| Species density and fluxes calculation | Not included | Included | Included |
| Time-resolved reaction rates | Not included | Included | Included |
| Configurable process parameters and reactor geometries | Not included | Included | Included |
Machine Learning Tools
| Feature | Free | Gold | Platinum |
|---|---|---|---|
| Rate coefficient calculator for heavy-particle reactions | Included | Included | Included |
| Diffusion coefficient estimator | Not included | Included | Included |
| Mass spectrum estimator | Not included | Included | Included |
| Polarizability estimator API | Not included | Included | Included |
| Sputtering yield estimator API | Not included | Included | Included |