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Is Open Library API down?

Current status, daily uptime history and troubleshooting for the Open Library API (Books).

No, Open Library is up

Open Library answered our last daily check (Oct 24, 2026, 12:25 UTC) in 1547 ms with HTTP 200.

Checking Open Library now…

Sending a request from our server.

Open Library API uptime history

30 days agoLatest check
Uptime
2 checks so far
Last check
Oct 24, 2026, 12:25 UTC
Response
1547 ms · HTTP 200
Last up
Now

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

Open Library API not working for you?

  1. A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
  2. Open Library doesn't send CORS headers, so browsers block calls made directly from a web page. Call it from your server instead.
  3. If it works from one network but not another, check firewalls, VPNs and regional blocks.
  4. Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.

Books APIs up at their last check

  1. 1Greenlit Books logo

    Greenlit Books API

    Online · 1178 ms

    Catalog of practical AI books with search, series, glossary and a claim ledger.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  2. 2KDP Intelligence logo

    KDP Intelligence API

    Online · 1181 ms

    KDP niche demand scores, competition analysis and revenue estimates.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  3. 3PoetryDB logo

    PoetryDB API

    Online · 623 ms

    Enables you to get instant data from our vast poetry collection.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  4. 4

    Runyankole Bible API

    Online · 1069 ms

    Free REST API for the Runyankore-Rukiga Bible — 66 books, 31106 verses.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  5. 5

    Thirukkural API

    Online · 814 ms

    1330 Thirukkural poems and explanation in Tamil and English.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS

Compare all Open Library alternatives · APIs down right now

Open Library API status FAQ

Is Open Library API down right now?

Open Library answered our last daily check (Oct 24, 2026, 12:25 UTC) in 1547 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether Open Library is responding at this moment.

How do you check whether Open Library API is up?

Once a day our checker requests Open Library's listed URL (https://openlibrary.org/developers/api) 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 Open Library API is down?

Free Books APIs that were up at their last check include Greenlit Books, KDP Intelligence, PoetryDB. See the full list of Open Library alternatives for a comparison.

Why does Open Library API work for others but not for me?

A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. Open Library doesn't send CORS headers, so browsers block calls made directly from a web page. Call it from your server instead. If it works from one network but not another, check firewalls, VPNs and regional blocks.