# Your Mailchimp. In your agent. Source: https://corespeed.io/integrations/mailchimp Connect Mailchimp to Claude Code, Codex, Cursor or any MCP agent through CoreSpeed. Your agent lists your audiences and their members, reads your campaigns, and pulls a sent campaign's report of opens, clicks, bounces and unsubscribes. It uses your own Mailchimp account. Adding a contact to an audience is a separate call that approvals can hold. ## Set up an agent Give your agent this line: `set up https://corespeed.io/SKILL.md (read it raw, e.g. with curl)` It fetches the skill at https://corespeed.io/SKILL.md, adds the CoreSpeed MCP server, signs you in (or up), and keeps the skill for next time. Connect Mailchimp after setup. Access follows the connected account and its permissions. Create an account: https://app.corespeed.io/sign-up ## Know how each send did. Without the report tabs Let your agent read your campaign reports and compare them in plain words: opens, clicks, bounces, and unsubscribes. You ask your agent: "Find our last three sent Mailchimp campaigns. Compare their open and click rates and name the audience each went to. Do not add or change any contacts." It calls CoreSpeed: - `mailchimp__list_campaigns`: ok, 384 ms - `mailchimp__get_campaign_report`: ok, 512 ms - `mailchimp__list_audiences`: ok, 297 ms It reads from: Mailchimp. ### Campaign brief: Three sends, side by side. The October product update had the best click rate. The Black Friday preview lost the most subscribers. **By the numbers** - October product update: 41% opens, 6.2% clicks. - Webinar invite: 37% opens, 3.1% clicks. - Black Friday preview: 44% opens, 4.0% clicks, 52 unsubscribes. **Worth a look** - The Black Friday preview had about three times the usual unsubscribes. _Illustrative reports · Fictional data · No contact changed_ All connectors: https://corespeed.io/docs/connectors ## Fewer report tabs. Clearer campaign numbers Requests you can make once Mailchimp is connected. The data is fictional. ### Read a campaign report October product update · Campaign report - Open rate: 41% - Click rate: 6.2% - From the reports you can access ### Check an audience Newsletter · newest members · Audience members - Subscribed: 126 this week - Pending: 9 awaiting confirmation - Read only · No contact changed ### Add a contact, with a yes A signup from the meetup · Write held for a person - Audience: Newsletter - Status: Pending, so they confirm first - The write waits for a person ## Keep your agent. Bring your work One CoreSpeed account, across compatible agents. 1. **Set up CoreSpeed**: Give your agent the setup line. It adds CoreSpeed and signs you in. 2. **Connect Mailchimp**: Authorize the account and the content you need. 3. **Start with one task**: Ask for a summary, a brief, or a draft. Review the answer. Setup guides: Claude Code https://corespeed.io/docs/mcp#claude-code · Codex https://corespeed.io/docs/mcp#codex · Cursor https://corespeed.io/docs/mcp#cursor ## Questions ### Can my agent send a Mailchimp campaign? No. The Mailchimp tools read campaigns and their reports. Sending or scheduling a campaign stays in Mailchimp. ### Can it add contacts to an audience? Yes, as a separate tool call that approvals can hold for a person. A pending status sends the contact a confirmation email first. How approvals work: https://corespeed.io/docs/approvals ### Does my agent see my Mailchimp credentials? No. You connect Mailchimp once in CoreSpeed, which keeps the credential. Your agent only calls the tools. ### Do I have to switch agents? No. CoreSpeed adds tools to the agent you already use: Claude Code, Codex, Cursor, or another MCP client. Each one signs in once. ### Can my agent access every account in our organization? No. Access follows your CoreSpeed identity, each connection's visibility, and the app's own permissions. Personal connections stay private. ### Does this work without connecting an account? No. Connect the app's account first; your CoreSpeed workspace shows what each app needs. The examples on this page use fictional data. All connectors: https://corespeed.io/docs/connectors Every tool and price: https://corespeed.io/catalog/mailchimp ## Related pages - [Approval gates for AI agent tool actions](https://corespeed.io/solutions/agent-approvals): Set approval policies for writes through CoreSpeed. Review held tool actions while your team keeps using its preferred agents. - [Kit (ConvertKit) for Claude Code, Codex, and Cursor](https://corespeed.io/integrations/kit): Read Kit (formerly ConvertKit) subscribers, tags, and broadcast stats, and draft broadcasts from Claude Code, Codex, or Cursor. - [Klaviyo for Claude Code, Codex, and Cursor](https://corespeed.io/integrations/klaviyo): See Klaviyo lists, segments, profiles, campaigns, and flows from Claude Code, Codex, or Cursor. Check what is live before you change anything. - [Omnisend for Claude Code, Codex, and Cursor](https://corespeed.io/integrations/omnisend): Read Omnisend contacts, segments, and automations, and draft campaigns from Claude Code, Codex, or Cursor. Sending is a separate call. - [Typeform for Claude Code, Codex, and Cursor](https://corespeed.io/integrations/typeform): Summarize Typeform responses and create new forms from Claude Code, Codex, or Cursor, with your own Typeform account. ## Sources - Connectors: https://corespeed.io/docs/connectors - Mailchimp Marketing API: List members: https://mailchimp.com/developer/marketing/api/list-members/ - Mailchimp Marketing API: Reports: https://mailchimp.com/developer/marketing/api/reports/ Reviewed 2026-11-10. ## Links - Product overview: https://corespeed.io/ (Markdown: https://corespeed.io/index.md) - All integrations: https://corespeed.io/integrations (Markdown: https://corespeed.io/integrations.md) - Documentation: https://corespeed.io/docs - Pricing: https://corespeed.io/pricing (Markdown: https://corespeed.io/pricing.md)