Connecting MAILsimple to Claude

MAILsimple lets Claude work with your mailboxes. Setup takes a couple of minutes.

1. Subscribe

From Shop, choose a MAILsimple plan and complete checkout. Your subscription appears on your dashboard immediately.

2. Create an API key

Open API Keys, choose MAILsimple, and click Generate key. Copy the key shown — it starts with csk_ and is only displayed once.

3. Add the connector in Claude

1. Install the MAILsimple connector from the Claude plugin marketplace.
2. When prompted, paste your API key as the connector key / bearer token.
3. Ask Claude to list your mail accounts to confirm the connection.

Troubleshooting

If Claude reports an authentication error, confirm the key is active in API Keys and that your MAILsimple subscription is current on the dashboard.