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Is EPO API down?

Current status, daily uptime history and troubleshooting for the EPO API (Patent).

No, EPO is up

EPO answered our last daily check (Oct 24, 2026, 12:25 UTC) in 246 ms with HTTP 200.

Checking EPO now…

Sending a request from our server.

EPO API uptime history

30 days agoLatest check
Uptime
2 checks so far
Last check
Oct 24, 2026, 12:25 UTC
Response
246 ms · HTTP 200
Last up
Now

We check EPO's listed URL (https://developers.epo.org/) once a day. History started when EPO was first checked, so new entries show fewer than 30 days.

EPO API not working for you?

  1. EPO needs OAuth. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string.
  2. A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
  3. If calls fail only in the browser with a CORS error, EPO may not allow cross-origin requests. Call it from your server instead.
  4. If it works from one network but not another, check firewalls, VPNs and regional blocks.
  5. Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.

Patent APIs up at their last check

  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 ?

Compare all EPO alternatives · APIs down right now

EPO API status FAQ

Is EPO API down right now?

EPO answered our last daily check (Oct 24, 2026, 12:25 UTC) in 246 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether EPO is responding at this moment.

How do you check whether EPO API is up?

Once a day our checker requests EPO's listed URL (https://developers.epo.org/) and records whether it answers within 15 seconds. Answers like 401 (needs a key), 403 (blocks bots) or 429 (rate-limited) count as up, because the server responded. The listed URL is often the documentation page, so an API endpoint can occasionally fail while its docs stay up.

What can I use if EPO API is down?

Free Patent APIs that were up at their last check include USPTO, PatentsView, TIPO. See the full list of EPO alternatives for a comparison.

Why does EPO API work for others but not for me?

EPO needs OAuth. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string. A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. If calls fail only in the browser with a CORS error, EPO may not allow cross-origin requests. Call it from your server instead.