Users can issue long-lived tokens, as described in the API documentation.
To invalidate a token, call the API endpoint for deleting tokens using that token as the authorization header.
It takes up to a minute for an invalidated token to start getting rejected by the API.
export TEMBO_TOKEN="The token you want to invalidate"
curl -X DELETE \
-H "Authorization: Bearer ${TEMBO_TOKEN}" \
"https://api.tembo.io/api/v1/tokens/invalidate"