klaviyo-agent

[](https://modelcontextprotocol.io) [](LICENSE) [](https://www.klaviyo.com)

Bridge email marketing and paid advertising for maximum ROAS. Open this repo in Amp, Cursor, or VS Code and manage Klaviyo lists, segments, and revenue data with AI — sync your top customers to ad platforms for lookalikes and suppress email subscribers from acquisition campaigns.

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Klaviyo is the email/SMS marketing platform of choice for 143,000+ ecommerce brands. It tracks every email open, click, purchase, and browse event — giving it the richest understanding of customer behavior in the ecommerce stack.

This data is transformative for advertising. Your Klaviyo segments reveal exactly who your best customers are: top 10% by revenue, repeat purchasers, VIP tier, recently churned. Each segment becomes a high-quality ad audience.

The smartest ecommerce brands use Klaviyo and ad platforms in a feedback loop: ads acquire new customers → Klaviyo nurtures them → purchase data feeds back into ad audiences → better targeting → lower CAC. An AI agent automates this entire loop.

Best for: Ecommerce and D2C brands, Shopify stores, any business using Klaviyo for email/SMS that also runs paid ads on Meta, Google, or TikTok.

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1. Get a free API key at syntermedia.ai/developer
2. Set the key:

   export SYNTER_API_KEY=syn_your_key_here

1. Open this repo in your editor
2. Start chatting — MCP tools are pre-configured in .mcp.json

Copy claude_desktop_config.json to your Claude config directory and replace the API key:

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