Klaviyo MCP server for 
AI agents
Ask Claude, ChatGPT or Cursor which Klaviyo campaigns and flows really earn, next to your ads and store.
No card needed. Works with any MCP client.
LemonadoKlaviyo MCP
Ask about flows and each flow message in Claude, ChatGPT or any AI agent, from live Klaviyo data.
What is the Klaviyo MCP server?
Lemonado's Klaviyo MCP server gives Claude, ChatGPT and other AI apps your live Klaviyo data: campaigns, flows, segments and the revenue Klaviyo attributes to them. Connect Klaviyo to Lemonado, connect Lemonado to your AI, and ask what's working in email and SMS. The same connection reaches Shopify, Meta Ads and GA4, so you can see email next to paid and the store.
All your Klaviyo data
Email and SMS campaigns, ready to ask about.
Always today's numbers
Opens, clicks, unsubscribes and spam complaints, synced from Klaviyo automatically, so answers use today's numbers.
Connect all your tools
Questions like "Does Klaviyo over-claim?" use Klaviyo and Shopify, Meta Ads at once.
Connecting takes minutes.
- 1
Connect Klaviyo
Sign in to Klaviyo in Lemonado.
- 2
Copy the server URL
Turn on external access and copy one URL.
- 3
Ask in Claude
Add the URL to Claude and ask away.
Ask it anything.
Claude reads your Klaviyo numbers, explains what moved and turns the answer into an artifact you can share.
ClaudeRank our flows by revenue per recipient over the last 90 days.
Abandoned cart leads at $3.10 per recipient, then browse abandonment at $1.40. The welcome flow sits at $0.60, below its benchmark.
Source: Klaviyo
Are unsubscribes and spam complaints rising on campaigns this quarter?
Unsubscribes rose from 0.18% to 0.31% after we moved to 4 sends a week. Spam complaints are flat.
Source: Klaviyo
What do our 10 best campaigns by revenue per recipient have in common?
7 of 10 name a product in the subject line, and 6 went out on a Sunday. Discount-led subjects rank lower.
Source: Klaviyo
Compare revenue per send for email and SMS campaigns this year.
SMS earns $0.21 per send vs $0.06 for email, but costs more per message. After cost, SMS is ahead on launches only.
Source: Klaviyo
Compare Klaviyo attributed revenue with Shopify revenue by week. How much of Shopify revenue does Klaviyo claim?
Klaviyo claims 34% of Shopify revenue. On days Meta runs a sale, that rises to 48%, so the two overlap.
Source: Klaviyo
How many new Klaviyo subscribers came in on days with Meta Ads spend over $2,000?
Signups average 410 on those days vs 160 on quieter days, and a third of them order within 30 days.
Source: Klaviyo
Let Lemonado check Klaviyo for you.
Copy one of these into Lemonado and it runs on a schedule.
Every Monday, send last week's Klaviyo campaigns and top flows by revenue per recipient to #crm.
Weekly email report
Alert me when a campaign's spam complaint rate goes over 0.08% or unsubscribes double the 30-day average.
Deliverability watch
Every morning, tell me if any live flow sent fewer than half its usual daily messages yesterday.
Flow health check
Why Lemonado?
Your whole stack in one connection
Google, Meta, GA4, TikTok and 3,000+ more tools, in every AI app.
No API keys or servers
Sign in once. Nothing to install, host or keep alive.
Scoped to each client
Each connection only reaches the clients you allow. Built for agencies.
Actions with guardrails
Set each action to Off, Ask or Approve. Nothing runs that you haven't allowed.
Use Klaviyo with any AI agent.
Claude
Connect Klaviyo to Claude
ChatGPT
Connect Klaviyo to ChatGPT
Claude Code
Connect Klaviyo to Claude Code
Cursor
Connect Klaviyo to Cursor
VS Code (GitHub Copilot)
Connect Klaviyo to VS Code (GitHub Copilot)
Codex
Connect Klaviyo to Codex
Perplexity
Connect Klaviyo to Perplexity
Google Antigravity
Connect Klaviyo to Google Antigravity
Windsurf (Devin Desktop)
Connect Klaviyo to Windsurf (Devin Desktop)
Zed
Connect Klaviyo to Zed
n8n
Connect Klaviyo to n8n
Is there an official Klaviyo MCP server?
Yes. Klaviyo hosts an official MCP server (mcp.klaviyo.com) that signs in with OAuth and can read and change your Klaviyo account. It covers Klaviyo only, and the hosted version needs an Owner, Admin or Manager role.
| Klaviyo's official MCP server | Lemonado | |
|---|---|---|
| Setup | One URL with OAuth (Owner, Admin or Manager role) | Sign in once, paste one URL |
| Other platforms | Klaviyo only | Klaviyo plus Shopify, Meta, GA4 and 3,000+ tools |
| Email next to store and ads | No | Yes, in one question |
| Changes in Klaviyo | Yes, campaigns, lists and more | No, read only |
| Price | Included with Klaviyo | See pricing |
Explore other integrations
All 3,000+ integrations
ShopifyAsk Claude, ChatGPT or Cursor about your Shopify sales, next to what you spend on ads.
Meta AdsAsk Claude, ChatGPT or Cursor about your Facebook and Instagram ads, creatives and results.
Google AnalyticsAsk Claude, ChatGPT or Cursor about GA4 traffic, conversions and funnels, next to your ad spend.
StripePut Stripe revenue next to your ad spend in Claude, ChatGPT or Cursor.
Google AdsAsk Claude, ChatGPT or Cursor about your Google Ads campaigns, search terms and spend.
Google Search ConsoleAsk Claude, ChatGPT or Cursor about your search queries, rankings and lost clicks.
Reading this as an AI agent?
Everything an agent needs to set this up, in plain text. Paste this page's link into your AI app and ask it to connect you, or copy the block.
# Lemonado MCP server for Klaviyo Lemonado is a hosted MCP server that gives AI apps the user's live Klaviyo, plus any other marketing tool they connect (Google Ads, Meta Ads, GA4 and 3,000+ more). - Server URL: https://mcp.lemonado.io/mcp - Transport: Streamable HTTP - Auth: OAuth; the user signs in to Lemonado in the browser. No API keys. - Klaviyo data: Email and SMS campaigns; Flows and each flow message; Opens, clicks, unsubscribes and spam complaints; Attributed orders and revenue; Lists, segments and their growth; Sends by day for timing questions - Connecting Klaviyo: Sign in to Klaviyo and pick the account. A user with access to campaigns, flows and analytics works best. - Tools on https://mcp.lemonado.io/mcp (custom connectors, coding agents, n8n): list_objects, get_object_details, execute_sql, get_google_ads_resource_metadata, list_companies, get_company_details, list_actions, get_action_details, execute_action - Lemonado's Claude directory app and ChatGPT plugin (read-only): list_projects, list_project_sources, answer_data_question, explain_metric_change ## Setup 1. The user connects Klaviyo in Lemonado (Connectors) and signs in. 2. In the company's settings → External tools, they turn the connection on and copy the server URL. 3. They add the server URL to their AI app. Setup per app: https://lemonado.io/integrations Docs: https://docs.lemonado.io/mcp-reference Full index for agents: https://lemonado.io/llms.txt
Frequently Asked Questions
Use Klaviyo's server when you want AI to build or edit campaigns inside Klaviyo. Use Lemonado when you want to know what email and SMS earn next to Shopify revenue and paid ads: it reads Klaviyo alongside the rest of your stack in one connection.
Connect your Klaviyo account in Lemonado, turn on External tools, and add Lemonado to Claude or ChatGPT. Each guide on this page has the exact steps. Sign in to Klaviyo and pick the account. A user with access to campaigns, flows and analytics works best. Then ask something like "Rank our flows by revenue per recipient over the last 90 days."
Yes. It's a standard remote MCP server (https://mcp.lemonado.io/mcp): one command in Claude Code, one entry in Cursor's mcp.json, and an MCP Client Tool with a Lemonado token in n8n. In a coding agent, try "Check that every newsletter form in our code sends a signup event, and compare it with new Klaviyo profiles by source last month."
Yes. Besides answering in Claude or ChatGPT, Lemonado runs Klaviyo reports and alerts on a schedule, in Slack or email. For example: "Every Monday, send last week's Klaviyo campaigns and top flows by revenue per recipient to #crm."
It reads your Klaviyo data. Klaviyo stays untouched; the only changes Lemonado can make are in ad accounts you connect, and only once you approve them.
MCP is included in Lemonado's paid plans and in the free trial, so you can try it before you pay.
Still have a question?
Shoot us an email at hello@lemonado.io.
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