Klaviyovf.sr

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Work with Klaviyo campaigns, flows, segments, profiles and performance reports from your AI assistant.

state.auth.long (state.auth.title)Streamable HTTP

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https://mcp.klaviyo.com/mcp

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mcp.tc/i/klaviyo

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Connects an AI assistant to your Klaviyo account so it can work with marketing data such as campaigns, flows, segments, profiles and performance reports.

Runs as a hosted streamable HTTP endpoint at mcp.klaviyo.com and users sign in with OAuth. A local alternative exists, started with uvx klaviyo-mcp-server@latest, which uses a private API key.

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  • Work with email and SMS campaigns
  • Inspect flows
  • Look up and manage segments
  • Find customer profiles
  • Pull performance reports

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  • Show how my last email campaign performed in Klaviyo

  • List the segments in my Klaviyo account

  • Find the Klaviyo profile for jane@example.com

  • Summarize the performance of my welcome flow

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Claude Code

  1. Run this in a terminal, in your project folder:
claude mcp add --transport http klaviyo https://mcp.klaviyo.com/mcp
  1. Start Claude Code, type /mcp, pick klaviyo and choose Authenticate. A browser window opens for the Klaviyo sign-in.

Add --scope user to make it available in every project, not just this one.

Claude Desktop

  1. Open Settings → Connectors and click Add custom connector.
  2. Name it Klaviyo and paste this URL:
https://mcp.klaviyo.com/mcp
  1. Click Add, then Connect, and sign in when Klaviyo asks.

Claude Desktop's JSON config file only starts local servers. Remote servers go through Connectors, and connectors you add on claude.ai show up here too.

claude.ai

  1. Open the connector form on claude.ai. This button fills in the name and URL for you:

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  1. Check that the URL reads https://mcp.klaviyo.com/mcp and click Add.
  2. Click Connect and sign in when Klaviyo asks.

Free plans allow one custom connector. On Team and Enterprise plans an owner adds it under Organization settings → Connectors.

ChatGPT

  1. On chatgpt.com, open Settings → Security and login and turn on Developer mode.
  2. Go to chatgpt.com/plugins and click + to create an app for a remote MCP server.
  3. Paste https://mcp.klaviyo.com/mcp as the server URL and choose OAuth. ChatGPT sends you to Klaviyo to sign in.

Developer mode is available on the web for Plus, Pro, Business, Enterprise and Education accounts.

Cursor

Add to Cursor a11y.new_tab

Or add it by hand to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project):

mcp.json
{
  "mcpServers": {
    "klaviyo": {
      "url": "https://mcp.klaviyo.com/mcp"
    }
  }
}

Cursor shows Needs login next to the server. Click it to sign in.

VS Code

Install in VS Code a11y.new_tab

Or from a terminal:

code --add-mcp '{"name":"klaviyo","type":"http","url":"https://mcp.klaviyo.com/mcp"}'

Or commit it to the repo in .vscode/mcp.json:

.vscode/mcp.json
{
  "servers": {
    "klaviyo": {
      "type": "http",
      "url": "https://mcp.klaviyo.com/mcp"
    }
  }
}

VS Code asks you to sign in the first time the server starts.

Devin Desktop

  1. Add it to ~/.config/devin/mcp_config.json (macOS and Linux) or %APPDATA%\devin\mcp_config.json (Windows):
mcp_config.json
{
  "mcpServers": {
    "klaviyo": {
      "serverUrl": "https://mcp.klaviyo.com/mcp"
    }
  }
}
  1. Refresh the MCP server list in Cascade and sign in when asked.

Devin Desktop is the new name for Windsurf. It reads serverUrl (or url) for remote servers.

Codex

codex mcp add klaviyo --url https://mcp.klaviyo.com/mcp
codex mcp login klaviyo

Or edit ~/.codex/config.toml directly:

config.toml
[mcp_servers.klaviyo]
url = "https://mcp.klaviyo.com/mcp"

Gemini CLI

gemini mcp add --transport http klaviyo https://mcp.klaviyo.com/mcp

Then, inside Gemini CLI, run /mcp auth klaviyo to sign in.

This adds it to the current project. Add -s user to use it everywhere.

Any client

Most clients accept this shape. Some name the URL field differently: serverUrl in Devin Desktop, httpUrl in Gemini CLI's settings file.

{
  "mcpServers": {
    "klaviyo": {
      "type": "http",
      "url": "https://mcp.klaviyo.com/mcp"
    }
  }
}

Zed puts servers under context_servers in its settings. Cline needs "type": "streamableHttp", or it assumes SSE.

Client only starts local servers? Bridge it with npx -y mcp-remote https://mcp.klaviyo.com/mcp.

listing.faq

Can I paste mcp.tc/i/klaviyo into my MCP client?

No. mcp.tc links are pages, not server addresses. Connect with https://mcp.klaviyo.com/mcp, so your client talks to Klaviyo directly. The sign-in token only works there anyway. The quick link is for sharing: it opens this page, with setup steps for every client.

Does Klaviyo need an API key or a sign-in?

Yes, you need a Klaviyo account. The first time your client connects, it opens Klaviyo's sign-in page. The token goes straight to the server's own URL, never through mcp.tc.

Is Klaviyo a remote or a local server?

Remote. Klaviyo hosts it at https://mcp.klaviyo.com/mcp, and it speaks Streamable HTTP. There's nothing to install.

What can Klaviyo do?

You can work with email and SMS campaigns, inspect flows and look up and manage segments.

Which clients can use it?

Any client that supports remote MCP servers: Claude Code, Claude Desktop, claude.ai, ChatGPT in developer mode, Cursor, VS Code, Devin Desktop, Codex, Gemini CLI, Zed and others. The setup steps cover each one.

Who wrote this page?

mcp.tc's robot read Klaviyo's own metadata (its MCP handshake, tool list and public pages), and an AI model drafted the text from it. A person reviews anything the checks can't confirm. The text can still be wrong, so if you spot a mistake, use Report this listing on this page.

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Markdown
[![Klaviyo on mcp.tc](https://mcp.tc/i/klaviyo/badge.svg)](https://mcp.tc/i/klaviyo)
HTML
<a href="https://mcp.tc/i/klaviyo"><img src="https://mcp.tc/i/klaviyo/badge.svg" alt="Klaviyo on mcp.tc" height="20"></a>

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HTML
<script src="https://mcp.tc/w/klaviyo.js" async></script>

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iframe

HTML
<iframe src="https://mcp.tc/embed/klaviyo" title="Klaviyo on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>

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JSON

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https://mcp.tc/i/klaviyo.json

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