Iterable announced a hosted MCP server on November 12, 2026, as part of its Winter Product Launch. Marketers can now connect Claude, ChatGPT or Cursor to Iterable with their own Iterable login, no API key and no local install required, and build, preview and stage journeys without leaving the chat. Here is what shipped, how to connect each tool, and the guardrails worth setting before the whole team plugs in.
What did Iterable actually launch?
The announcement covers a Winter Product Launch in three parts: the hosted MCP server, AI-assisted SDK integrations for mobile developers, and a tripled Integrations Hub with new connections to HubSpot, Chargebee, Recurly, BigCommerce, Typeform, Contentful and Google Sheets, plus audience syncs for Reddit Ads, ChatGPT Ads, Snapchat and Microsoft Advertising.
The hosted MCP server is the headline. Requests from Claude, ChatGPT, Cursor and other MCP-compatible tools run through Nova Agent, Iterable's AI marketing assistant, so the agent can carry out multi-step work like building a journey and proofing its email instead of waiting for direction at every step. Journey canvases and email previews render right inside the chat, and Iterable says the design limits how much customer data is shared with your LLM.
One thing to keep straight: Iterable already shipped a self-hosted, open source MCP server in September 2026. That one runs on your own machine with a personal API key. The new hosted server is managed by Iterable, installs from each AI tool's directory, uses per-user sign-in including corporate SSO, and limits every agent to that user's existing role permissions. The self-hosted server stays available and free for teams that prefer to run their own.
How do you connect Claude to Iterable?
The hosted server installs from each tool's connector directory rather than through a pasted server URL. In Claude, open Settings, then Connectors, find Iterable in the directory, and sign in with your own Iterable login when prompted. Corporate SSO works, there is no shared API key to manage, and the agent can only do what your Iterable role already allows. As of November 2026, Iterable points customers to its What's New and release notes pages for availability details, so check there if the connector has not reached your directory yet.
How do you connect ChatGPT and Cursor?
Same pattern. In ChatGPT, install Iterable from the apps and connectors directory in settings, with each person signing in on their own Iterable account. In Cursor, add it from the tools directory. Any other MCP-compatible client can use a custom connection instead. Whichever tool you pick, access is tied to the individual's Iterable account, which is the part security teams will like: nothing shared, nothing to rotate.
What should you run first?
Start with reads, then move to staged work:
- Performance pulls. Ask for a summary of active campaigns and the underperformers. It is a read, it touches nothing, and it shows you how Nova Agent reasons about your account.
- Email proofing. Have it preview and proof an existing email. The preview renders in the chat, so you can judge output quality without opening Iterable.
- A staged journey. Ask it to build a journey draft and stage it, not launch it. Review the canvas in Iterable before anything goes live.
Guardrails before the whole team connects
Per-user permissions are the control surface here, so audit roles before you invite the team: whatever a marketer can do in Iterable, their agent can now do faster. Keep launch and send rights narrow, let agents stage work for human review, and treat the first two weeks as a sandbox period, the same posture we recommended for Attentive's MCP server and lemlist's MCP.
Hosted or self-hosted: which one?
| Hosted MCP server | Self-hosted MCP server |
|---|
| Sign-in | Your Iterable login, SSO supported | Personal API key |
| Runs where | Managed by Iterable | Your machine, installed from GitHub |
| Intelligence | Requests run through Nova Agent | Direct calls to Iterable's API |
| Cost | No separate pricing announced | Free, open source |
| Best for | Marketing teams | Developers who want raw API control |
For most marketing teams the hosted server is the right default: nothing to install, SSO, and Nova Agent guidance built in. The self-hosted open source server still makes sense for developers who want direct API access under their own key. If you are weighing a connector for a platform that does not have one yet, start with when to build versus buy a custom MCP connector.
Frequently asked questions
What is Iterable's hosted MCP server?
A managed MCP server, announced November 12, 2026, that connects AI tools like Claude, ChatGPT and Cursor to Iterable. Requests run through Nova Agent, each person signs in with their own Iterable login, and agents are limited to that user's existing permissions.
What is the difference between Iterable's hosted and self-hosted MCP servers?
The self-hosted server, released in September 2026, runs on your machine with a personal API key and passes requests straight to Iterable's API. The hosted server is managed by Iterable, uses per-user sign-in with SSO, and routes requests through Nova Agent so multi-step work like building and proofing a journey happens in one ask. The self-hosted version remains free.
Which AI tools work with Iterable's hosted MCP server?
Claude, ChatGPT and Cursor install it from their own connector directories, and other MCP-compatible tools can use a custom connection, as of November 2026.
Does the hosted MCP server cost extra?
Iterable's announcement does not list separate pricing. Capabilities follow your existing Iterable plan and each user's permissions, and the self-hosted server remains free. Confirm specifics with your Iterable account team.
Want agents wired into your own stack, on Iterable or anything else, with the credentials, guardrails and governance handled? See our custom MCP connector builds.
