How to connect Klaviyo MCP to Claude Desktop
Add this block to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows), then restart Claude Desktop. Cursor and Codex use a similar schema.
{
"mcpServers": {
"klaviyo": {
"command": "npx",
"args": ["mcp-remote", "<YOUR_MCP_URL>"]
}
}
}
// HTTP-transport MCP. Get your <YOUR_MCP_URL> from the vendor dashboard.
// Server source: https://developers.klaviyo.com/mcp
// Claude Code (one-liner): claude mcp add klaviyo <YOUR_MCP_URL> --transport httpSome MCP servers require an API key. Check the source page for setup: developers.klaviyo.com/mcp.
Does Klaviyo MCP cost extra?
Klaviyo ships an official MCP server that uses your existing subscription credentials.
- No separate MCP licence to buy. You pay for your Klaviyo plan, the MCP server queries that account.
- Whether it's gated to a specific tier wasn't extracted automatically — verify the access requirements on the MCP page or pricing docs.
Klaviyo subscription pricing
| Plan | Monthly | Annual / mo |
|---|---|---|
| Free | — | — |
| Marketing - Paid | $45 | — |
| Marketing Analytics | $100 | — |
| Advanced Klaviyo Data Platform | $500 | — |
| Customer Agent | $140 | — |
| Customer Hub | $20 | — |
| Helpdesk | $185 | — |
| Professional - Support | $500 | — |
| Enterprise - Support | $1,800 | — |
| Enterprise - Custom | Contact sales | — |
Source: klaviyo.com/pricing. Verified 2026-06-07.
Klaviyo also publishes a REST API
Klaviyo's API is included with every paid plan, but SMS, MMS, and WhatsApp are billed per message.
What you can do with Klaviyo from an AI agent
Three shapes of agent workflow. Pick the row that matches how you actually use Claude / Cursor / Codex day to day.
Skip the dashboard, ask Claude
- "What changed this week?" answered in seconds
- Quick one-off questions without leaving the editor
- Pipe Klaviyo data into your personal notes / docs without writing a script
Run client analysis at agent speed
- Hand the MCP server to your team — every consultant can ask Claude about any client's Klaviyo account
- Multi-account workflows without context-switching the Klaviyo UI
- Reports you'd normally spend hours on, done before standup
Production agent workflows
- Embed in your internal Codex / Cursor agents that triage Klaviyo data daily
- Combine with other MCP servers in a multi-step agent chain
- Constrain agents to read-only roles to keep production Klaviyo safe
Limits and gotchas
- Official MCP server — published by Klaviyo themselves, so it should track product changes.
- Fallback: the REST API works for any flow the MCP server doesn't cover.
- Auth flow: MCP servers usually inherit the underlying API auth method (both). Expect to configure that on first install.
- Rate limits: MCP calls count against your underlying Klaviyo API quota. Burst usage from a curious agent can drain a daily allowance fast.
Agent-readiness verdict
Good agent fit with official MCP support. Klaviyo offers an official MCP server and documented public API with native Claude and ChatGPT integration, making it straightforward to add to agentic workflows. The missing OpenAPI spec and lack of webhooks limit some automation patterns, but the MCP availability handles most agent use cases.
Scored 2026-06-07 by Joonas (TMB).
Klaviyo MCP & API FAQ
Is the Klaviyo MCP server official?+
Can I use the Klaviyo MCP with Cursor or Codex?+
Does Klaviyo have a public API?+
Which LLMs does Klaviyo integrate with directly?+
Sources
- Klaviyo official site: https://www.klaviyo.com
- MCP server page: https://developers.klaviyo.com/mcp
- API docs: https://developers.klaviyo.com/en/reference/api_overview
- Pricing source: https://www.klaviyo.com/pricing (verified 2026-06-07)
Data verified by Joonas on the dates shown. MCP server status auto-rechecked weekly.
10+ years in digital marketing. I review marketing software for AI-stack fit: real pricing, MCP and API support, and how cleanly each tool drops into an AI agent workflow, cross-checked against verified data and real user feedback.