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Courier MCP Server for Mastra AI 10 tools — connect in under 2 minutes

Built by Vinkius GDPR 10 Tools SDK

Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect Courier through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.

Vinkius supports streamable HTTP and SSE.

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

async function main() {
  // Your Vinkius token. get it at cloud.vinkius.com
  const mcpClient = await createMCPClient({
    servers: {
      "courier": {
        url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
      },
    },
  });

  const tools = await mcpClient.getTools();
  const agent = new Agent({
    name: "Courier Agent",
    instructions:
      "You help users interact with Courier " +
      "using 10 tools.",
    model: openai("gpt-4o"),
    tools,
  });

  const result = await agent.generate(
    "What can I do with Courier?"
  );
  console.log(result.text);
}

main();
Courier
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<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Courier MCP Server

Integrate Courier, the smart notification infrastructure, directly into your AI workflow. Design, orchestrate, and send messages across email, SMS, push, and chat apps using natural language.

Mastra's agent abstraction provides a clean separation between LLM logic and Courier tool infrastructure. Connect 10 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.

What you can do

  • Send Notifications — Trigger complex notification workflows to any recipient via the Send API.
  • Message Monitoring — List sent messages and track their real-time delivery status (sent, delivered, opened).
  • Template Management — Browse available notification templates and custom brands.
  • Audience & User Insights — Manage subscription lists and retrieve user profiles.

The Courier MCP Server exposes 10 tools through the Vinkius. Connect it to Mastra AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Courier to Mastra AI via MCP

Follow these steps to integrate the Courier MCP Server with Mastra AI.

01

Install dependencies

Run npm install @mastra/core @mastra/mcp @ai-sdk/openai

02

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

03

Run the agent

Save to agent.ts and run with npx tsx agent.ts

04

Explore tools

Mastra discovers 10 tools from Courier via MCP

Why Use Mastra AI with the Courier MCP Server

Mastra AI provides unique advantages when paired with Courier through the Model Context Protocol.

01

Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Courier without touching business code

02

Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation

03

TypeScript-native: full type inference for every Courier tool response with IDE autocomplete and compile-time checks

04

One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure

Courier + Mastra AI Use Cases

Practical scenarios where Mastra AI combined with the Courier MCP Server delivers measurable value.

01

Automated workflows: build multi-step agents that query Courier, process results, and trigger downstream actions in a typed pipeline

02

SaaS integrations: embed Courier as a first-class tool in your product's AI features with Mastra's clean agent API

03

Background jobs: schedule Mastra agents to query Courier on a cron and store results in your database automatically

04

Multi-agent systems: create specialist agents that collaborate using Courier tools alongside other MCP servers

Courier MCP Tools for Mastra AI (10)

These 10 tools become available when you connect Courier to Mastra AI via MCP:

01

get_message_details

Touches delivery logs, provider responses, and rendering metadata boundary. Get details for a specific message by ID

02

get_message_history

Resolves event types (SENT, DELIVERED, etc.) and detailed provider logs. Get the delivery history logs for a message

03

get_user_profile

Resolves contact details (email, phone) and channel-specific delivery preferences. Get the profile data for a specific user

04

list_audiences

Resolves audience IDs, names, and filter criteria used for segmentation. List saved audiences for targeted notifications

05

list_brands

Resolves brand names, colors, and logo settings used for white-labeling notifications. List custom brands configured in Courier

06

list_messages

Resolves message IDs, recipient identifiers, status (SENT, DELIVERED, OPENED, CLICKED), and timestamps. List sent messages and their current status

07

list_subscription_lists

Resolves list IDs, names, and subscriber counts. List subscription lists for managing recipients

08

list_templates

Resolves template names, IDs, and supported channels. List available notification templates

09

list_users

Resolves user IDs, roles, and account association details. List users registered in the Courier workspace

10

send_notification

Touches recipient profile, template engine, and multi-channel provider boundaries. Send a notification to a recipient

Example Prompts for Courier in Mastra AI

Ready-to-use prompts you can give your Mastra AI agent to start working with Courier immediately.

01

"Check the delivery status of the last message sent to 'user@example.com'."

02

"Send a 'Welcome' notification to the new user with ID 'user_123'."

03

"List all notification templates available in my account."

Troubleshooting Courier MCP Server with Mastra AI

Common issues when connecting Courier to Mastra AI through the Vinkius, and how to resolve them.

01

createMCPClient not exported

Install: npm install @mastra/mcp

Courier + Mastra AI FAQ

Common questions about integrating Courier MCP Server with Mastra AI.

01

How does Mastra AI connect to MCP servers?

Create an MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.
02

Can Mastra agents use tools from multiple servers?

Yes. Pass multiple MCP clients to the agent constructor. Mastra merges all tool schemas and the agent can call any tool from any server.
03

Does Mastra support workflow orchestration?

Yes. Mastra has a built-in workflow engine that lets you chain MCP tool calls with branching logic, error handling, and parallel execution.

Connect Courier to Mastra AI

Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.