Bring Transactional Email
to LangChain
Create your Vinkius account to connect Loops to LangChain 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.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
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)
Requires an email address. Optionally accepts firstName, lastName, and userGroup. Create a new contact in Loops
This action cannot be undone. Delete a contact from Loops by ID
Returns the contact details if found. Find a contact in Loops by email address
Suppressed emails will not receive emails. Returns the suppression status for the given email. Check if an email address is suppressed in Loops
Use this to discover available lists for subscribing contacts. List all mailing lists in Loops
Optionally accepts a limit parameter to control the number of results returned. List recently sent transactional emails from Loops
Requires an eventName. Optionally accepts email and/or userId to identify the recipient. Send an event to trigger email journeys in Loops
Requires the transactionalId. Optionally accepts email and dataVariables (as JSON string) for template variables. Send a transactional email via Loops
Returns success/failure status. Test if the Loops API key is valid and working
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 LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Loops through native MCP adapters. Connect 10 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine Loops MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across Loops queries for multi-turn workflows
Loops in LangChain
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.
* 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
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
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.
Loops and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Loops to LangChain 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.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Loops for LangChain
Every request between LangChain 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.
Frequently asked questions
How do I get a Loops API key?
Log in to your Loops account, go to Settings → API, and generate a new API key. Ensure it has the necessary permissions. Then provide it when prompted by the MCP server setup.
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.
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.
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.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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