Free Patent APIs
2 free APIs in Patent that require no authentication. Start building immediately — no API key needed. 4 total Patent APIs available.
PatentsView
⭐ Beginner's Pick 52
PatentsView is a free US patent data API from the USPTO that lets you search, filter, and analyze millions of US patents and inventor records without an API key.
No Auth Beginner HTTPS 216ms
USPTO
82
The USPTO API provides access to US patent data including full-text patents, patent grants, and trademark records.
No Auth Beginner HTTPS 276ms
Need more Patent APIs?
There are 2 more Patent APIs that require authentication (API key or OAuth).
Browse all 4 Patent APIs →