MCP servers · Mailchimp · custom connector
Connect Grok Bot (xAI) to Mailchimp
One line gives Grok Bot (xAI) your Mailchimp account as tools: 12 endpoints, audiences, members, campaigns, called with your own connection. No key in the prompt, a receipt for every call, revoke Grok Bot (xAI)'s access alone any time.
Three steps
- Create a free 0n3 account and connect Mailchimp. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Grok Bot (xAI). xAI's always-on Grok Bot. Add 0n3 as a custom connector once, and your Bot can use every app you added, around the clock.
- Ask Grok Bot (xAI): whoami. Then: "List audiences in Mailchimp".
Add 0n3 to Grok Bot (desktop app)
- Open Grok Bot on your computer. In the sidebar, click Connect apps.
- At the bottom, click Add a custom connector.
- For Name, type 0n3. For Type, pick Remote HTTPS. For Server URL, type https://0n3.app/mcp.
- Under HTTP headers, add Authorization with the value Bearer <your 0n token>
- Click Add plugin.
Then try it: send your Bot this
- "Use 0n3: who am I, and which apps can you reach?"
- "Every weekday at 8, use 0n3 to list today's CRM appointments and new Stripe payments, and post a summary to me."
The line above carries a placeholder; 0n3.app/install mints a real key named for Grok Bot (xAI) and fills it in.
What Grok Bot (xAI) can then do in Mailchimp
Audiences · View and manage audiences/lists2
List audiences
GET /listsGet an audience
GET /lists/{listId}Members · Add and manage subscribers4
Add a member
POST /lists/{listId}/membersUpdate a member
PATCH /lists/{listId}/members/{subscriberHash}List members
GET /lists/{listId}/membersSearch members
GET /search-membersCampaigns · Create and send email campaigns4
List campaigns
GET /campaignsCreate a campaign
POST /campaignsSend a campaign
POST /campaigns/{campaignId}/actions/sendGet a campaign report
GET /reports/{campaignId}Templates · View email templates1
List templates
GET /templatesMore · Everything else this app exposes.1
List automations
GET /automationsMailchimp in other AI clients
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