Resend MCP Server for Mastra AIGive Mastra AI instant access to 11 tools to Add Contact To Audience, Create Audience, Get Domain Details, and more
Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect Resend through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.
Ask AI about this App Connector for Mastra AI
The Resend app connector for Mastra AI is a standout in the Industry Titans category — giving your AI agent 11 tools to work with, ready to go from day one.
Vinkius delivers Streamable HTTP and SSE to any MCP client
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: {
"resend-extended": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "Resend Agent",
instructions:
"You help users interact with Resend " +
"using 11 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with Resend?"
);
console.log(result.text);
}
main();
* 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 Resend MCP Server
Connect your Resend account to any AI agent and take full control of your transactional email orchestration through natural conversation. Resend provides a world-class email infrastructure for developers, and this integration allows you to send emails, monitor domain verification, and manage contact audiences directly from your chat interface.
Mastra's agent abstraction provides a clean separation between LLM logic and Resend tool infrastructure. Connect 11 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
- Email Orchestration — Send high-fidelity emails using custom HTML or text programmatically, with support for batch sending and history retrieval.
- Domain Lifecycle Management — List all managed domains and trigger verification processes directly from the AI interface to ensure deliverability.
- Audience & CRM Control — Create and manage contact audiences and individual subscribers via natural language to maintain your marketing lists.
- API & Security Oversight — Access and monitor your API keys to ensure your integration remains secure and synchronized.
- Operational Monitoring — Track system responses and manage email delivery logs using simple AI commands.
The Resend MCP Server exposes 11 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.
All 11 Resend tools available for Mastra AI
When Mastra AI connects to Resend through Vinkius, your AI agent gets direct access to every tool listed below — spanning transactional-email, email-api, domain-verification, and more. Every call is secured with network, filesystem, subprocess, and code evaluation entitlements inside a sandboxed runtime. Beyond a simple connection, you get a full AI Gateway with real-time visibility into agent activity, enterprise governance, and optimized token usage.
Requires email. Add a contact to an audience
Create a new audience
Get details for a specific domain
Get details for a specific email
List all API keys
List contact audiences
List contacts in an audience
List registered domains
List sent emails
Requires from, to, and subject. Send a single email
Verify a domain
Connect Resend to Mastra AI via MCP
Follow these steps to wire Resend into Mastra AI. The entire setup takes under two minutes — your credentials stay safe behind the Vinkius.
Install dependencies
npm install @mastra/core @mastra/mcp @ai-sdk/openaiReplace the token
[YOUR_TOKEN_HERE] with your Vinkius tokenRun the agent
agent.ts and run with npx tsx agent.tsExplore tools
Why Use Mastra AI with the Resend MCP Server
Mastra AI provides unique advantages when paired with Resend through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Resend without touching business code
Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation
TypeScript-native: full type inference for every Resend tool response with IDE autocomplete and compile-time checks
One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure
Resend + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the Resend MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query Resend, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed Resend as a first-class tool in your product's AI features with Mastra's clean agent API
Background jobs: schedule Mastra agents to query Resend on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using Resend tools alongside other MCP servers
Example Prompts for Resend in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with Resend immediately.
"Send a welcome email to test@example.com using HTML."
"Show me the delivery analytics for all emails sent through Resend this week."
"Send a transactional email with the invoice PDF attachment to client@meridian.io."
Troubleshooting Resend MCP Server with Mastra AI
Common issues when connecting Resend to Mastra AI through the Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpResend + Mastra AI FAQ
Common questions about integrating Resend MCP Server with Mastra AI.
How does Mastra AI connect to MCP servers?
MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.