PQAI
7.8#2 in ai patent search softwareFrom $216 a yearFree planWebAPILinuxSelf-hosted
VisitPQAI vs Stiltn
What both publish
| Fact | PQAI | Stiltn |
|---|---|---|
| Patent coverage | The free plan includes search across 100M+ patents. | Stiltn says it covers more than 50 patent offices, including USPTO, EPO, WIPO, JPO, KIPO, and CNIPA. |
| Security | PQAI says API requests use token-based authentication and HTTPS, with rate limiting and access controls. | The security page lists SOC 2 Type II, GDPR, and EU AI Act compliance; ISO 27001 is undergoing external audit. |
PQAI plans
- FreeFree
- API Starter$20 a month
- Starter$20 a month
- PQAI+ Monthly$20 a month
- API Developer$199 a month
- Developer$199 a month
Stiltn plans
- EvaluationFree
Pick PQAI if…
PQAI suits individual inventors, patent examiners, law firms, enterprises, and R&D teams looking for relevant prior art. Its API and embedding options also suit developers adding patent search to a product or website, though commercial integration requires a commercial API or Enterprise plan.
Pick Stiltn if…
Stiltn is intended for patent attorneys, law firms, corporate IP departments, R&D organisations, licensing teams, universities, and patent offices. It may also suit teams that need patent search, drafting, monitoring, and portfolio review in one platform.