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Best Marketing MCPs
Vendor-maintainedDocumentation reviewed

For email and SMS performance and campaign drafts in Klaviyo

Klaviyo MCP server

By Klaviyo. Official server from Klaviyo, hosted (recommended) or local.

The most thoughtfully configurable server here: a read-only mode, a switch to block tools that read customer-written content, and scope filters, all set in the URL. Ecommerce teams on Klaviyo get performance answers and first-draft campaigns without leaving the chat.

Klaviyo MCP docs (opens in a new tab)Setup instructions (opens in a new tab)

Disclosure: the publisher of this site has commercial relationships with some of the companies whose products we rank. Read our full disclosure.

Reads data
Yes
Makes changes
Yes
Runs
Hosted or local
Cost
No MCP fee / free to start

What it does

  • Performance reporting for email campaigns and flows.
  • Creates email campaigns and works with templates, profiles, segments and lists.
  • URL options: read-only mode, disabling tools that read user-generated content, a ~40-tool core set and scope-based toolsets.

Reads

Campaign and flow performance, profiles, lists, segments, catalogs, metrics and templates.

Makes changes: Yes

Can create campaigns and change profiles, segments, templates and more. Add read-only=true to the URL to disable every write tool. We did not confirm whether it can send or schedule.

Marketing tasks it helps with

  • See which flows earn the most

    Klaviyo’s own example prompt.

    Try: “Which flows are performing the best in terms of conversions?”

  • Draft a promotional campaign

    Creates the campaign in Klaviyo for review.

    Try: “Create an email campaign promoting our Memorial Day sale.”

Who it’s for

A good fit if

  • Ecommerce brands on Klaviyo.
  • Agencies managing several Klaviyo accounts (custom connectors per account).

Look elsewhere if

Requirements and setup

  • An Owner, Admin or Manager role on the Klaviyo account (hosted server).
  • For local use: uv and a private API key with the listed scopes.
  1. In Claude, browse connectors for Klaviyo, or add https://mcp.klaviyo.com/mcp as a custom connector.
  2. Optional: append ?read-only=true to start without write access.
  3. Approve access in Klaviyo.

Step-by-step for each assistant: How to connect an MCP.

Limitations

  • The hosted server requires Owner, Admin or Manager role.
  • Tools that read customer-written content can carry prompt-injection risk; Klaviyo offers a switch to disable them.

Sources and evidence

Documentation reviewed. We read the maker’s current documentation and linked sources. We have not installed it or run a workflow, so this page says nothing about speed, reliability or output quality.

Facts checked against these sources on .