Resend Alternative MCP Server for Mastra AI 14 tools — connect in under 2 minutes
Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect Resend Alternative through the Vinkius and Mastra agents discover all tools automatically — type-safe, streaming-ready, and deployable anywhere Node.js runs.
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Vinkius supports streamable HTTP and SSE.
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-alternative": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "Resend Alternative Agent",
instructions:
"You help users interact with Resend Alternative " +
"using 14 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with Resend Alternative?"
);
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 Alternative MCP Server
Connect your Resend account to any AI agent and take full control of your email infrastructure through natural conversation.
Mastra's agent abstraction provides a clean separation between LLM logic and Resend Alternative tool infrastructure. Connect 14 tools through the 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 Sending — Send transactional emails with HTML/text bodies, attachments, CC/BCC and reply-to addresses
- Batch Sending — Send up to 100 emails in a single API call for bulk notifications
- Email Tracking — Retrieve sent email details including delivery status, bounces and complaints
- Domain Management — Add, verify, update and delete sending domains with DNS record guidance
- API Key Management — Create, list and delete API keys with scoped permissions (full_access, sending, domains)
- Scheduled Emails — Update or cancel previously scheduled email deliveries
The Resend Alternative MCP Server exposes 14 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 Resend Alternative to Mastra AI via MCP
Follow these steps to integrate the Resend Alternative MCP Server with Mastra AI.
Install dependencies
Run npm install @mastra/core @mastra/mcp @ai-sdk/openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save to agent.ts and run with npx tsx agent.ts
Explore tools
Mastra discovers 14 tools from Resend Alternative via MCP
Why Use Mastra AI with the Resend Alternative MCP Server
Mastra AI provides unique advantages when paired with Resend Alternative through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure — add Resend Alternative 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 Alternative 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 Alternative + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the Resend Alternative MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query Resend Alternative, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed Resend Alternative 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 Alternative on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using Resend Alternative tools alongside other MCP servers
Resend Alternative MCP Tools for Mastra AI (14)
These 14 tools become available when you connect Resend Alternative to Mastra AI via MCP:
cancel_email
The email must be in "scheduled" status. Provide the email ID. Cancel a scheduled email
create_api_key
Requires a name and optionally the permission scope (full_access, sending, domains). Returns the key value which is shown ONLY ONCE — make sure to copy it immediately. Create a new API key in Resend
create_domain
Requires the domain name (e.g. "example.com"). Optionally set the AWS SES region. Returns the domain ID and the DNS records (SPF, DKIM) you need to configure for verification. Add a new domain to Resend
delete_api_key
The key will no longer be able to authenticate API requests. Provide the API key ID from list_api_keys. WARNING: this action is irreversible. Delete an API key from Resend
delete_domain
All DNS records associated with the domain will be invalidated. Provide the domain ID. WARNING: this action is irreversible. Delete a domain from Resend
get_domain
Provide the domain ID from list_domains. Get details for a specific domain
get_email
Returns the sender, recipient(s), subject, creation date, last event (delivered, bounced, complained) and scheduled_at if applicable. Get details for a sent email
list_api_keys
Returns key name, ID, creation date and permission scope (full_access, sending, domains). Note: actual key values are NOT returned for security. List API keys in your Resend account
list_domains
Each domain shows its name, status (verified, not_verified, pending), region, SPF/DKIM records and creation date. Use this to verify which domains are ready for sending emails. List verified domains in Resend
list_emails
Returns email ID, from, to, subject, creation date and last event status. Results are paginated and ordered by most recent first. List recently sent emails
send_batch_emails
Provide a JSON array of email objects, each with from, to, subject and optionally html/text. Each email in the batch is counted individually against your quota. Returns an array of results with IDs for each email. Send a batch of emails via Resend
send_email
Requires the sender address (from), recipient(s) (to) and subject. Optionally provide HTML body, plain text body, reply-to address, CC/BCC recipients and attachments. The from address must use a verified domain configured in Resend. Returns the email ID for tracking. Send an email via Resend
update_email
The email must be in "scheduled" status. Provide the email ID and the new scheduled_at timestamp (ISO 8601). Update a scheduled email
verify_domain
Use this after adding or updating SPF/DKIM records in your DNS provider. Returns the updated domain status. Verify a domain's DNS records
Example Prompts for Resend Alternative in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with Resend Alternative immediately.
"Send a welcome email to newuser@example.com from onboarding@myapp.com."
"Show me all domains configured in my Resend account."
"Create a new API key called 'production-sending' with sending permissions only."
Troubleshooting Resend Alternative MCP Server with Mastra AI
Common issues when connecting Resend Alternative to Mastra AI through the Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpResend Alternative + Mastra AI FAQ
Common questions about integrating Resend Alternative 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.Can Mastra agents use tools from multiple servers?
Does Mastra support workflow orchestration?
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Connect Resend Alternative to Mastra AI
Get your token, paste the configuration, and start using 14 tools in under 2 minutes. No API key management needed.