# HTTP error \[503 Service Unavailable\]

**URL:** <https://forum.ecmwf.int/t/http-error-503-service-unavailable/12577>\
**Category:** CAMS - Access and Login\
**Tags:** api\
**Created:** [9 April 2025 17:07 UTC](https://forum.ecmwf.int/t/http-error-503-service-unavailable/12577 "2025-04-09T17:07:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Angela\_Mynard](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/a/4491bb/32.png) [@Angela\_Mynard](https://forum.ecmwf.int/u/Angela_Mynard)\
**Post date:** [9 April 2025 17:07 UTC](https://forum.ecmwf.int/t/http-error-503-service-unavailable/12577/1 "2025-04-09T17:07:31Z")

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The above error is being received when trying to download CAMS Forecast data via api. The same script was downloading data OK earlier on today. Are there issues anywhere? Nothing in Announcements. Thanks!

Error message below:  
2025-04-09 15:25:26,264 INFO [2024-09-26T00:00:00] Watch our [Forum](https://prod.ecmwf-forum-prod.compute.cci2.ecmwf.int/) for Announcements, news and other discussed topics.  
2025-04-09 15:25:27,138 INFO Request ID is d1a4a173-9379-428d-bf5b-2a63e7841acb  
2025-04-09 15:25:27,438 INFO status has been updated to accepted  
Recovering from HTTP error [503 Service Unavailable], attemps 1 of 500  
Retrying in 120 seconds

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<div class="post-metadata">

**Author:** ![Angela\_Mynard](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/a/4491bb/32.png) [@Angela\_Mynard](https://forum.ecmwf.int/u/Angela_Mynard)\
**Post date:** [10 April 2025 07:41 UTC](https://forum.ecmwf.int/t/http-error-503-service-unavailable/12577/2 "2025-04-10T07:41:21Z")

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These seems to have fixed itself overnight. I can only assume the server at ECMWF end was down temporarily.