[SOLVED] API Access Denied (403) After Upgrading to Supporter

1

Hi Intervals.icu Team,

I recently upgraded to Supporter to access the API, but I’m getting a 403 error when trying to use it.

Details:

  • Athlete ID: i256066
  • API Key: 1puezkan06zdf895zb1yykkxm (generated after upgrading)
  • Error: HTTP 403 {“status”:403,“error”:“Access denied”}
  • Endpoint: /api/v1/athlete/i256066/activities
  • Time of error: 2026-02-23 17:14 UTC+8

Could you please help check if my Supporter status is properly activated for API access?

Thank you!

2

You need to keep your API key secret! I have just regenerated yours.

You can use 0 in place of the athlete ID. Try with curl with your API key in place of xxx below:

curl -u API_KEY:xxx 'http://localhost:8044/api/v1/athlete/0'

You do not need to be a supporter for API access, but thanks for subscribing.

3

Thanks much David!

4

That said I’m still getting 401 Unauthorized error with:
curl -u API_KEY: ‘https://intervals.icu/api/v1/athlete/0/activities’ - may i please check if the key is fully activated?

5

API_KEY in bold above is NOT your API-key. API_KEY is the user and it is the same for EVERYONE, it is this exact string!

So modify that by
curl -u API_KEY: “YOUR personal API-key” ‘https://intervals.icu/api/v1/athlete/0/activities’

1 Like
6

Gotcha! Much appreciated the help!

7

Hi David, I’m a new Supporter (ID: 20934) and I still get 403 on the API wellness endpoint

8

Did you read any answers above? You can search the forum, for that error, it’s always the same errors… Don’t ask your chatbot of your choice, it tells you that this has to be activated, but that’s not true.

Or read the FAQ: