How to Use the Mail Blaze MCP in Mastra AI

Q: Is it possible to use Mail Blaze tools for conditional logic in Mastra AI?

You can check subscriber counts using listlistsubscribers and use that value to trigger different paths in your agent's decision-making process.

Q: How does Mastra AI handle human approval for Mail Blaze tools?

You can set requireToolApproval for sensitive actions like deletelistsubscriber. This forces the agent to pause until you confirm the action.

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Connect Mail Blaze MCP to Mastra AI

Create your Vinkius account to connect Mail Blaze 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 Mail Blaze with Mastra AI

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Automated subscriber sync for Mastra AI

Handle your subscriber list lifecycle with automated `add_subscriber_to_list` and `delete_list_subscriber` calls. Mastra AI manages the state and handles retries if the network blips. You avoid manual list management entirely. The agent tracks the subscriber count and adjusts accordingly when your workflow hits a conditional branch.

Multi-step campaign logic in Mastra AI

Chain your email tasks by combining `create_new_campaign` and `send_email_campaign` within your workflows. Define the order of operations and let the agent execute the sequence. Failures get handled gracefully. If a campaign fails to create, your agent can log the error or retry depending on the workflow rules you define.

Inspect Mail Blaze lists inside Mastra AI

Use `list_subscriber_lists` to audit your marketing assets during an agent execution. This allows your workflow to make decisions based on existing lists before taking action. Dynamic routing becomes possible. Your agent reads the available lists and decides where to route new signups based on the data it receives.

Setup guide

Set up Mail Blaze 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 Mail Blaze 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: "mail-blaze-mcp-client",
  servers: {
    "mail-blaze-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

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

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

Add the server to your agent configuration. Mastra AI will automatically detect the tools, allowing you to use them as steps in your agent's workflow.

Yes, you can define retry logic in your Mastra AI workflow. If `send_email_campaign` fails due to a temporary error, the agent will attempt the call again.

You can check subscriber counts using `list_list_subscribers` and use that value to trigger different paths in your agent's decision-making process.

You can set `requireToolApproval` for sensitive actions like `delete_list_subscriber`. This forces the agent to pause until you confirm the action.

The server uses token-based auth to communicate with the API. Mastra AI processes the subscriber data only within the ephemeral context of your specific agent run.

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