How to Use the Klaviyo MCP in Mastra AI

Q: Can Mastra AI manage my email templates in Klaviyo?

Yes, your agent can call listemailtemplates to fetch layouts. It can then run custom validation steps before updating your active campaigns.

Q: How do I query dynamic segments using this server?

Use the listsegments tool within your agent definition. This retrieves dynamic audience criteria, allowing your workflow to branch based on real-time segment membership.

Q: How does Mastra AI protect my marketing lists and customer tags?

Your credentials and data retrieved via listmarketinglists are encrypted in transit and injected only during active runtime execution. No local logs or persistent databases cache your lists, keeping your subscriber data isolated.

Build resilient marketing workflows that automatically sync Klaviyo customer data and handle API retries using Mastra AI.

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Connect Klaviyo MCP to Mastra AI

Create your Vinkius account to connect Klaviyo to Mastra AI and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Klaviyo with Mastra AI

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Sync profiles with Mastra AI workflow retries

The `create_profile` tool registers new subscribers directly from your application's signup flow. By running this tool inside a Mastra AI workflow, you ensure that network hiccups or rate limits never drop a customer record. If the initial API call fails, the framework automatically retries with exponential backoff. This guarantees that your customer profiles are successfully created in Klaviyo without writing custom retry boilerplate.

Automate campaign tagging with this Klaviyo MCP Server

The `list_tags` tool fetches your organizational labels to categorize campaigns and flows automatically. Your Mastra AI agent inspects your current marketing assets and applies tags based on real-time performance. You can chain this with `list_campaigns` to find low-performing emails and tag them for review. The workflow engine handles the conditional logic, routing the data to your team only when specific metrics fall below your threshold.

Monitor marketing webhooks with conditional workflows

The `list_webhooks` tool retrieves active subscription triggers to keep your local database in sync with marketing events. Mastra AI monitors these endpoints and runs conditional checks to flag any unauthorized changes. If a webhook goes offline, the agent can automatically re-register it. This MCP monitoring setup keeps your data pipelines running smoothly without manual developer intervention.

Setup guide

Set up Klaviyo MCP in Mastra AI

Prerequisites

Node.js 18+ and a TypeScript project
@mastra/mcp + @mastra/core packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run npm install @mastra/mcp @mastra/core plus your preferred model provider (e.g. @ai-sdk/openai).
2

Configure the MCPClient
Create an MCPClient with your Vinkius endpoint as a URL object. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and inject tools
Call mcpClient.listTools() and spread the result into your agent's tools object. All Klaviyo tools become native Mastra tools.
4

Run with any model
Swap openai("gpt-4o") for any AI SDK-compatible provider. Call agent.generate() and the agent routes tool calls through MCP automatically.

agent.ts

import { MCPClient } from "@mastra/mcp";
import { Agent } from "@mastra/core/agent";
import { openai } from "@ai-sdk/openai";

const mcpClient = new MCPClient({
  id: "klaviyo-mcp-client",
  servers: {
    "klaviyo-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

const agent = new Agent({
  name: "Klaviyo Agent",
  model: openai("gpt-4o"),
  instructions: "You have access to Klaviyo tools.",
  tools: {
    ...(await mcpClient.listTools()),
  },
});

const result = await agent.generate(
  "List recent Klaviyo transactions"
);
console.log(result.text);

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Klaviyo. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Klaviyo MCP in Mastra AI

You configure the Mastra AI workflow engine to catch rate-limiting errors from `track_event` or `create_profile`. The framework then uses automatic retries with exponential backoff to replay the failed actions safely.

Yes, your agent can call `list_email_templates` to fetch layouts. It can then run custom validation steps before updating your active campaigns.

Yes, you can use the requireToolApproval setting on your agent. This pauses the workflow when the agent attempts to run `list_marketing_lists` or modify segments until a manager clicks approve.

Use the `list_segments` tool within your agent definition. This retrieves dynamic audience criteria, allowing your workflow to branch based on real-time segment membership.

Your credentials and data retrieved via `list_marketing_lists` are encrypted in transit and injected only during active runtime execution. No local logs or persistent databases cache your lists, keeping your subscriber data isolated.

Use it with your favorite AI tools

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