# Encountering Persistent 404 Client Error with CDS API **URL:** \ **Category:** Other - Access and Login\ **Tags:** era5\ **Created:** [31 January 2025 10:02 UTC](https://forum.ecmwf.int/t/encountering-persistent-404-client-error-with-cds-api/11112 "2025-01-31T10:02:54Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![HR\_SM](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/h/e9a140/32.png) [@HR\_SM](https://forum.ecmwf.int/u/HR_SM)\ **Post date:** [31 January 2025 10:02 UTC](https://forum.ecmwf.int/t/encountering-persistent-404-client-error-with-cds-api/11112/1 "2025-01-31T10:02:54Z")
Dear CDS Support Team, I am experiencing a persistent `404 Client Error` when attempting to retrieve data using the CDS API. Despite ensuring that my configuration aligns with the guidelines provided, the issue remains unresolved. Steps Taken: 1. .cdsapirc Configuration: Verified that the `.cdsapirc` file in my home directory contains the correct URL and API key, formatted as follows: 2. License Agreement: Confirmed acceptance of the terms of use for the specific dataset by logging into the CDS portal and agreeing to the dataset-specific license. 3. CDS API Client Version: Ensured that the `cdsapi` client is updated to the latest version (0.7.4 or higher) using the command: Despite these measures, the `404 Client Error` persists. I would appreciate any guidance or suggestions to resolve this issue. Thank you for your assistance. Best regards, Hamid ---
**Author:** ![gael\_kermarrec1](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/g/7ea924/32.png) [@gael\_kermarrec1](https://forum.ecmwf.int/u/gael_kermarrec1)\ **Post date:** [12 August 2025 16:45 UTC](https://forum.ecmwf.int/t/encountering-persistent-404-client-error-with-cds-api/11112/2 "2025-08-12T16:45:57Z")
Hi, I also have a persistent error, did you find a solution? thanks for your answer, gael.