USPTO API alternatives

Explore data and statistics on patents and trademarks. If it doesn't fit your project, here are the 3 best free Patent APIs to use instead in 2026, out of 3 in the directory.

For reference, USPTO API: No API key needed · HTTPS.

1
PatentsView API
Online · 2284 ms
API is intended to explore and visualize trends/patterns across the US innovation landscape.
- No API key needed
- HTTPS
No authHTTPSCORS ?
2
EPO API
Online · 246 ms
European patent search system api.
- Fast: 246 ms response
- HTTPS
OAuthHTTPSCORS ?
3
TIPO API
Online · 1835 ms
Taiwan patent search system api.
- HTTPS
apiKeyHTTPSCORS ?

USPTO API vs alternatives

USPTO API compared with its alternatives
API	API key	HTTPS	CORS	Uptime	Response	Rating
USPTO	No	Yes	Unknown	Up	1300 ms	Not rated
PatentsView	No	Yes	Unknown	Up	2284 ms	Not rated
EPO	OAuth	Yes	Unknown	Up	246 ms	Not rated
TIPO	Required	Yes	Unknown	Up	1835 ms	Not rated

Head-to-head comparisons

See also: best Patent APIs · all Patent APIs

USPTO API alternatives FAQ

What is the best free alternative to the USPTO API in 2026?

The top-ranked free alternatives to the USPTO API are PatentsView API, EPO API and TIPO API, all in the Patent category. Rankings combine access (API key, HTTPS, CORS), daily uptime checks and developer ratings.

How many Patent APIs are similar to the USPTO API?

The directory lists 3 other free Patent APIs. This page compares the top ones side by side.