Klaviyo MCP Server

by scalably-ioio.scalably/klaviyo-mcpv1.0.0

Klaviyo MCP: campaigns, flows, segments, metrics, reports, profiles across many accounts. 24 tools.

0Node.jsstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Active31d ago

Install Klaviyo MCP server

claude mcp add klaviyo-scalably-io -e KLAVIYO_KEY_MAIN='<klaviyo-key-main>' -- npx -y @scalably-io/klaviyo-mcp

{
  "mcpServers": {
    "klaviyo-scalably-io": {
      "command": "npx",
      "args": [
        "-y",
        "@scalably-io/klaviyo-mcp"
      ],
      "env": {
        "KLAVIYO_KEY_MAIN": "<klaviyo-key-main>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "klaviyo-scalably-io": {
      "command": "npx",
      "args": [
        "-y",
        "@scalably-io/klaviyo-mcp"
      ],
      "env": {
        "KLAVIYO_KEY_MAIN": "<klaviyo-key-main>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "klaviyo-scalably-io": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@scalably-io/klaviyo-mcp"
      ],
      "env": {
        "KLAVIYO_KEY_MAIN": "<klaviyo-key-main>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "klaviyo-scalably-io": {
      "command": "npx",
      "args": [
        "-y",
        "@scalably-io/klaviyo-mcp"
      ],
      "env": {
        "KLAVIYO_KEY_MAIN": "<klaviyo-key-main>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
KLAVIYO_KEY_MAIN	yes	yes	Private API key for your main Klaviyo account. Add more accounts with extra KLAVIYO_KEY_<name> variables.
KLAVIYO_API_BASE	—	—	Klaviyo API base URL, default https://a.klaviyo.com/api
KLAVIYO_RETRY_BASE_MS	—	—	Base delay in milliseconds for the retry backoff, default 1000

Freshness

Active — last maintenance signal 31d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-09-09 · 31d ago · GitHub
Latest release
2026-09-09 · 31d ago · GitHub · v1.0.0
Package published
no data · npm/PyPI
Registry entry updated
2026-09-09 · 31d ago · official registry · v1.0.0

FAQ

›How do I install the Klaviyo MCP server in Claude Code?

Run: claude mcp add klaviyo-scalably-io -e KLAVIYO_KEY_MAIN='<klaviyo-key-main>' -- npx -y @scalably-io/klaviyo-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Klaviyo require an API key?

Yes. It expects KLAVIYO_KEY_MAIN, of which 1 is a secret.

›Can I use Klaviyo as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Klaviyo in the official MCP registry?

Yes, as io.scalably/klaviyo-mcp.