Intervals.icu FAQ

Guide
4

FAQ: API Access

Why do I get API access denied? (401 Unauthorized / 403 Access denied)

Most cases are authentication format issues.

Check these points:

  • Username must be literally API_KEY (NOT your actual key string).
  • Use the correct auth type from the API example (Basic, not Bearer).
  • Verify token string formatting (no extra spaces/characters).
  • Verify athlete id/path (0 for own account endpoints; i... ids where required).

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