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Vinkius
Mastra AISDK
Mastra AI
Why use Loops MCP Server with Mastra AI?

Bring Transactional Email
to Mastra AI

Create your Vinkius account to connect Loops to Mastra AI and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.

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Create ContactDelete ContactFind ContactGet Contact SuppressionList Mailing ListsList Transactional EmailsSend EventSend Transactional EmailTest Api KeyUpdate Contact
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Compatible with every major AI agent and IDE

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Loops

What is the Loops MCP Server?

Loops is a modern email marketing and transactional email platform designed for startups and growing businesses. It provides powerful automation for email journeys, audience segmentation, contact management, and detailed analytics. This MCP server enables AI agents to manage contacts, mailing lists, trigger events for automated journeys, send transactional emails, and check suppression statuses — all through natural language commands.

Key capabilities:

  • Search, create, update, and delete contacts
  • Manage mailing lists
  • Trigger email journeys with events
  • Send transactional emails programmatically
  • Check email suppression status
  • View sent transactional email history

Built-in capabilities (10)

create_contact

Requires an email address. Optionally accepts firstName, lastName, and userGroup. Create a new contact in Loops

delete_contact

This action cannot be undone. Delete a contact from Loops by ID

find_contact

Returns the contact details if found. Find a contact in Loops by email address

get_contact_suppression

Suppressed emails will not receive emails. Returns the suppression status for the given email. Check if an email address is suppressed in Loops

list_mailing_lists

Use this to discover available lists for subscribing contacts. List all mailing lists in Loops

list_transactional_emails

Optionally accepts a limit parameter to control the number of results returned. List recently sent transactional emails from Loops

send_event

Requires an eventName. Optionally accepts email and/or userId to identify the recipient. Send an event to trigger email journeys in Loops

send_transactional_email

Requires the transactionalId. Optionally accepts email and dataVariables (as JSON string) for template variables. Send a transactional email via Loops

test_api_key

Returns success/failure status. Test if the Loops API key is valid and working

update_contact

Requires the contact ID. Accepts any fields to update such as firstName, lastName, email, userGroup, etc. Update an existing contact in Loops by ID

Why Mastra AI?

Mastra's agent abstraction provides a clean separation between LLM logic and Loops 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.

  • Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Loops 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 Loops 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

M
See it in action

Loops in Mastra AI

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Enterprise Security

Why run Loops with Vinkius?

The Loops connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.

You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

View full Loops details →
Loops
Fully ManagedNo server setup
Plug & PlayNo coding needed
SecurePrivacy protected
PrivateYour data is safe
Cost ControlBudget limits
Control1-click disconnect
Auto-UpdatesMaintenance free
High SpeedOptimized for AI
Reliable99.9% uptime
Your credentials and connection tokens are fully encrypted

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure

01 / Catalog

Over 4,000 integrations ready for AI agents

Explore a vast library of pre-built integrations, optimized and ready to deploy.

02 / Credentials

Connect securely in under 30 seconds

Generate tokens to authenticate and link external services in a single step.

03 / Guardian

Complete visibility into every agent action

Audit live requests, latency, success rates, and active security compliance policies.

04 / FinOps

Optimize spending and track token ROI

Analyze real-time token consumption and cost metrics detailed by connection.

Over 4,000 integrations ready for AI agents
Connect securely in under 30 seconds
Complete visibility into every agent action
Optimize spending and track token ROI

Explore our live AI Agents Analytics dashboard to see it all working

This dashboard is included when you connect Loops using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.

Why Vinkius

Loops and 4,000+ other AI tools. No hosting, no code, ready to use.

Professionals who connect Loops to Mastra AI through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.

4,000+MCP Integrations
<40msResponse time
100%Fully managed
Raw MCP
Vinkius
Ready-to-use MCPsFind and configure each manually4,000+ MCPs ready to use
Connection SetupManual coding & server setup1-click instant connection
Server HostingYou host it yourself (needs 24/7 uptime)100% hosted & managed by Vinkius
Security & PrivacyStored in plaintext config filesBank-grade encrypted vault
Activity VisibilityBlind execution (no logs or tracking)Live dashboard with real-time logs
Cost ControlRunaway AI token spend riskAutomatic budget limits
Revoking AccessMust delete files or code to stop1-click disconnect button
The Vinkius Advantage

How Vinkius secures Loops for Mastra AI

Every request between Mastra AI and Loops is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

How do I get a Loops API key?

Log in to your Loops account, go to SettingsAPI, and generate a new API key. Ensure it has the necessary permissions. Then provide it when prompted by the MCP server setup.

02

What operations are supported by this MCP server?

The server supports: testing API key validity, finding/creating/updating/deleting contacts, listing mailing lists, sending events to trigger email journeys, sending transactional emails, listing sent transactional emails, and checking contact suppression status.

03

What is the difference between mailing lists and transactional emails in Loops?

Mailing lists are used for marketing campaigns and automated email journeys. Transactional emails are one-off, triggered messages like receipts, password resets, or order confirmations. Both are supported by this MCP server.

04

How can I check if an email is suppressed in Loops?

Use the 'get_contact_suppression' tool provided by this MCP server. Simply ask the AI to check the suppression status for any email address, and it will tell you if that email is currently suppressed from receiving emails.

05

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.

06

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.

07

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.

08

createMCPClient not exported

Install: npm install @mastra/mcp

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