> For the complete documentation index, see [llms.txt](https://docs.nifty.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nifty.ai/connections/connecting-mercari.md).

# 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](/connections/passwordless-chrome-extension.md) for more details.

1. Using Google Chrome, open our [Chrome extension](https://chromewebstore.google.com/detail/nifty/ggcfdkgmekpddencdddinlmpekbcohoa) and click **Add to Chrome**.
2. From the same computer, log into your Mercari account.
3. Go back to Settings → [**Connections**](https://app.nifty.ai/settings/connections) — you'll see a **Connect** button instead of a password field.

<figure><img src="https://2533981788-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEm5xU5ktwTTfKBpX6qpY%2Fuploads%2Fgit-blob-c0cfad0f3f3432817921f0218082273cb5b48d89%2Fmercari.png?alt=media" alt="" width="375"><figcaption></figcaption></figure>

#### Option 2: Username + password

Best if you don't have access to a computer.

1. Go to Settings → [**Connections**](https://app.nifty.ai/settings/connections).
2. Find Mercari.
3. Enter your username and password.

{% hint style="success" %}
**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.
{% endhint %}

### 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:

1. Go to [Settings > Account Security](https://www.mercari.com/mypage/security/) — make sure SMS or Email is selected.
2. Go to [Settings > Phone Verification](https://www.mercari.com/mypage/sms_confirmation/) — verify this process is complete.
3. Sign out of Mercari and sign back in — ensure you receive a verification code.

**Still stuck?** [Reset your Mercari password](https://www.mercari.com/us/help_center/article/167/) 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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