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EPO API alternatives

European patent search system api. 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, EPO API: Fast: 246 ms response · HTTPS.

  1. 1USPTO logo

    USPTO API

    Online · 1300 ms

    Explore data and statistics on patents and trademarks.

    • No API key needed
    • HTTPS
    No authHTTPSCORS ?
  2. 2PatentsView logo

    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 ?
  3. 3TIPO logo

    TIPO API

    Online · 1835 ms

    Taiwan patent search system api.

    • HTTPS
    apiKeyHTTPSCORS ?

EPO API vs alternatives

EPO API compared with its alternatives
APIAPI keyHTTPSCORSUptimeResponseRating
EPO logoEPOOAuthYesUnknownUp246 msNot rated
USPTO logoUSPTONoYesUnknownUp1300 msNot rated
PatentsView logoPatentsViewNoYesUnknownUp2284 msNot rated
TIPO logoTIPORequiredYesUnknownUp1835 msNot rated

Head-to-head comparisons

See also: best Patent APIs · all Patent APIs

EPO API alternatives FAQ

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

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

Is there a EPO API alternative that doesn't need an API key?

Yes: USPTO API and PatentsView API work without an API key, unlike the EPO API, which uses OAuth authentication.

How many Patent APIs are similar to the EPO API?

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