Connecting Mercari
Connect your Mercari account to start using Nifty's automation and crosslisting features. You can connect using either our Chrome extension or your Mercari username and password.
How to connect
Option 1: Chrome extension
Recommended if you have a computer. See Passwordless Chrome Extension for more details.
Using Google Chrome, open our Chrome extension and click Add to Chrome.
From the same computer, log into your Mercari account.
Go back to Account — you'll see a Connect button instead of a password field.
Option 2: Username + password
Best if you don't have access to a computer.
Go to Account.
Find Mercari.
Enter your username and password.
Important: We do not store your Mercari password. When you connect via username and password, we use your credentials once to establish a session, then discard them.
Troubleshooting
Have a computer? We recommend the Chrome extension — it's quick, easy, and generally the most reliable.
No computer? Try these steps from the Mercari app before re-entering your credentials:
Go to Settings > Account Security — make sure SMS or Email is selected.
Go to Settings > Phone Verification — verify this process is complete.
Sign out of Mercari and sign back in — ensure you receive a verification code.
Still stuck? Reset your Mercari password and repeat step 3.
Reconnecting
Mercari connections last about 1 month. When your connection expires, you'll get an email from Nifty — just follow the same steps above to reconnect.
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