This maintenance was incorrectly left open. Coinbase’s scheduled maintenance ended on January 26 at 14:00 PST. We apologize for any inconvenience caused.
Coinbase exchange will perform scheduled maintenance affecting their API starting on January 26th at 13:00PST-14:00PST. There may be an interruption in the flow of Coinbase data in our products during their maintenance interval.
Check here for updates - https://status.coinbase.com/incidents/l05zv85bcc3g