How to Use the UniOne MCP in Mastra AI

Q: How does UniOne handle webhooks for Mastra AI?

You manage connections by first listing them with listwebhooks. For any required changes, use setwebhook to configure the endpoint. You can also delete old ones using deletewebhook.

Q: Can I control email sending logic with UniOne and Mastra AI?

Yes. The agent can send transactional emails with sendemail. For bulk or structured content, it uses sendtemplate. You'll want to check the suppression list using listsuppression before running any sends.

Q: Where do I find asset details with UniOne and Mastra AI?

You use gettemplate for content assets or getwebhook for connection endpoints. These functions retrieve the full, specific details needed to make your multi-step workflow decision.

Build resilient email workflows with Mastra AI and UniOne.

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Manage Email Assets for Workflows

Before a complex workflow runs, it needs assets. Use the `list_templates` tool to pull a full list of available email templates. This allows your agent to check if the required content exists before trying to send anything. Need to modify that template or create a brand new one? You can use `set_template` to update existing content, or you'll call `delete_template` if the content is deprecated.

Configure and Check Webhooks

When an email needs to trigger another system (like updating a CRM), it uses webhooks. First, check what's running by calling `list_webhooks`. Then, you can get the specific setup details with `get_webhook`. If your workflow requires a new endpoint connection, use `set_webhook` to configure it. Remember that if the webhook fails, you might need to clean up old versions using `delete_webhook`.

Send and Block Emails in Steps

The UniOne MCP Server makes sending emails simple: either a basic message with `send_email`, or content pulled from a stored template via `send_template`. You can even manage bounces by adding numbers to the suppression list using `set_suppression`. If an attempt fails, your workflow needs visibility. Use `list_suppression` to confirm that failed addresses are correctly captured and blocked.

Setup guide

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

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

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

The server gives you full control over email content. You can use `get_template` to check details, or modify the content using `set_template`. This lets your agent build reliable email steps.

You manage connections by first listing them with `list_webhooks`. For any required changes, use `set_webhook` to configure the endpoint. You can also delete old ones using `delete_webhook`.

Yes. The agent can send transactional emails with `send_email`. For bulk or structured content, it uses `send_template`. You'll want to check the suppression list using `list_suppression` before running any sends.

You add problematic addresses or domains to the block list by calling `set_suppression`. Before continuing, you can always verify what's already blocked using `list_suppression`.

You use `get_template` for content assets or `get_webhook` for connection endpoints. These functions retrieve the full, specific details needed to make your multi-step workflow decision.

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