How to Use the Mailjet MCP in Mastra AI

Q: How do I handle failed Mailjet sends in Mastra AI?

Wrap the sendtemplateemail tool inside a Mastra AI workflow. The engine automatically retries the call using exponential backoff if the API returns a transient error.

Q: Can Mastra AI automate subscriber cleanup for my Mailjet lists?

Yes, you combine listallcontacts and getaccountanalytics in a Mastra AI workflow. The agent identifies dead emails and unsubscribes them automatically.

Q: How do I require human approval for the Mailjet MCP Server in Mastra AI?

Set the requireToolApproval flag on sendplainemail within your agent config. Mastra AI pauses execution until a human reviews the generated email body.

Q: Can I branch my workflow based on email template details?

Yes. You call gettemplatedetails to inspect the structure, and use Mastra AI's branching logic to route the process based on the template variables.

Q: Is my Mailjet template HTML content secure with Mastra AI?

Yes, all HTML payloads pulled via gettemplatedetails pass through isolated memory channels. The MCP Server handles authentication via a single endpoint token, keeping your template designs completely private.

Build resilient email workflows that automatically retry failed Mailjet sends using Mastra AI agents.

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Connect Mailjet MCP to Mastra AI

Create your Vinkius account to connect Mailjet 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 Mailjet with Mastra AI

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Fault-Tolerant Email Delivery

`send_template_email` executes within Mastra AI's workflow engine to guarantee delivery even during network hiccups. If the API throws a rate limit error, the agent automatically retries the send with exponential backoff. Developers can define strict conditional branches around `send_plain_email` to fallback to alternative templates if the primary design fails to render. This ensures critical transactional messages always reach the user's inbox.

Automated List Sanitization

`get_account_analytics` feeds into Mastra AI's conditional steps to trigger automatic list cleaning when bounce rates spike using the Mailjet MCP Server. The framework evaluates the metrics and routes failing domains to a quarantine list. By linking `list_all_contacts` with your custom workflows, you can automatically run safety checks on new signups before they receive marketing campaigns. This protects your sender reputation without manual list audits.

Mastra AI Campaign Execution

`get_campaign_performance` allows your Mastra AI agents to monitor active email runs and make routing decisions based on real-time engagement. If open rates drop below your threshold, the workflow triggers a follow-up send. This autonomous loop uses the MCP Server to track historical baseline metrics. The agent adjusts the timing of the next batch without requiring developer intervention.

Setup guide

Set up Mailjet 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 Mailjet 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: "mailjet-alternative-mcp-client",
  servers: {
    "mailjet-alternative-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

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

const result = await agent.generate(
  "List recent Mailjet 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 Mailjet. 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 Mailjet MCP in Mastra AI

Wrap the `send_template_email` tool inside a Mastra AI workflow. The engine automatically retries the call using exponential backoff if the API returns a transient error.

Yes, you combine `list_all_contacts` and `get_account_analytics` in a Mastra AI workflow. The agent identifies dead emails and unsubscribes them automatically.

Set the `requireToolApproval` flag on `send_plain_email` within your agent config. Mastra AI pauses execution until a human reviews the generated email body.

Yes. You call `get_template_details` to inspect the structure, and use Mastra AI's branching logic to route the process based on the template variables.

Yes, all HTML payloads pulled via `get_template_details` pass through isolated memory channels. The MCP Server handles authentication via a single endpoint token, keeping your template designs completely private.

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