← Catalog

CORE — API status & change history

Access the world's Open Access research papers

Last checked 2026-11-02 10:14 UTC — HTTP 200, 814 ms. Availability over 30 days of data: 100.00%.

73 ms · 2026-10-04 08:51 UTC79 ms · 2026-10-05 08:54 UTC79 ms · 2026-10-06 08:56 UTC75 ms · 2026-10-07 08:58 UTC79 ms · 2026-10-08 09:02 UTC77 ms · 2026-10-09 09:04 UTC63 ms · 2026-10-10 09:08 UTC88 ms · 2026-10-11 09:12 UTC70 ms · 2026-10-12 09:15 UTC93 ms · 2026-10-13 09:17 UTC85 ms · 2026-10-14 09:21 UTC85 ms · 2026-10-15 09:23 UTC86 ms · 2026-10-16 09:26 UTC298 ms · 2026-10-17 09:30 UTC954 ms · 2026-10-18 09:31 UTC975 ms · 2026-10-19 09:34 UTC196 ms · 2026-10-20 09:36 UTC194 ms · 2026-10-21 09:39 UTC193 ms · 2026-10-22 09:41 UTC216 ms · 2026-10-23 09:44 UTC220 ms · 2026-10-24 09:48 UTC180 ms · 2026-10-25 09:52 UTC336 ms · 2026-10-26 09:54 UTC209 ms · 2026-10-27 09:58 UTC194 ms · 2026-10-28 10:02 UTC217 ms · 2026-10-29 10:04 UTC212 ms · 2026-10-30 10:07 UTC525 ms · 2026-10-31 10:10 UTC628 ms · 2026-11-01 10:11 UTC814 ms · 2026-11-02 10:14 UTC
latency · last 30 checks

Auth: apiKey · HTTPS: yes · Docs

Monitor this API — free, unlimited catalog subscriptions.

Shape history

4 confirmed · 10 signals on record. A change confirms after it survives three consecutive polls.

Related

Science & Math APIs · NASA · ISRO · Newton · Latest graveyard