Please use JWT authentication if possible. More details in the online documentation.

Dein API-Schlüssel
Du hast noch keinen API-Schlüssel

Pass "Token 1234567890abcde..." in the Authorization header to use it

Example with curl:

curl -X GET https://wger.de/api/v2/routine/ \
     -H 'Authorization: Token 1234567890abcde...'