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Transport for Chicago, US — API status & change history

Chicago Transit Authority (CTA)

Last checked 2026-09-18 00:20 UTC — HTTP 200, 941 ms. Availability over 30 days of data: 98.15%.

153 ms · 2026-07-27 11:26 UTC357 ms · 2026-07-28 17:55 UTC144 ms · 2026-07-29 21:49 UTC135 ms · 2026-07-30 23:59 UTC133 ms · 2026-08-01 22:08 UTC118 ms · 2026-08-03 04:20 UTC120 ms · 2026-08-04 08:31 UTC164 ms · 2026-08-05 21:01 UTC184 ms · 2026-08-06 21:28 UTC134 ms · 2026-08-08 02:23 UTC126 ms · 2026-08-10 18:56 UTC141 ms · 2026-08-11 23:33 UTC112 ms · 2026-08-13 06:51 UTC112 ms · 2026-08-14 06:59 UTC149 ms · 2026-08-15 11:01 UTC110 ms · 2026-08-18 13:30 UTC115 ms · 2026-08-19 19:37 UTC75 ms · 2026-08-21 08:32 UTC54 ms · 2026-08-22 14:30 UTC74 ms · 2026-08-24 14:05 UTC81 ms · 2026-08-25 17:13 UTC95 ms · 2026-08-26 22:47 UTC69 ms · 2026-08-28 08:22 UTC239 ms · 2026-08-31 12:22 UTC520 ms · 2026-09-02 00:06 UTC982 ms · 2026-09-03 03:24 UTC925 ms · 2026-09-10 00:16 UTC1047 ms · 2026-09-12 00:02 UTC1905 ms · 2026-09-15 03:14 UTC941 ms · 2026-09-18 00:20 UTC
latency · last 30 checks

Auth: apiKey · HTTPS: no · Docs

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Shape history

1 confirmed · 2 signals on record. A change confirms after it survives three consecutive polls.

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