Tagged: #401-unauthorized

Tutorials, deep-dives, and privacy-first thinking about developer tools.

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tutorial May 28, 2026 · 10 min

How to Debug a 401 Unauthorized by Decoding the JWT (2026)

When an API returns 401 Unauthorized in 2026, the JWT is usually the smoking gun. Decode the token, read exp, aud, iss — and fix the bug in 90 seconds.