Bring Notifications
to LangChain
Create your Vinkius account to connect Courier 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 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.
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.
How it works
- Connect the Courier integration to your AI assistant.
- Authorize using your Courier Auth Token (found in Settings > API Keys).
- Manage your global notification strategy through chat.
Who is this for?
- Product Managers — Quickly verify if critical system notifications are being delivered.
- Developers — Audit message history and troubleshoot delivery issues via chat.
- Customer Support — Check user profiles and their recent notification history to provide better help.
Built-in capabilities (10)
Touches delivery logs, provider responses, and rendering metadata boundary. Get details for a specific message by ID
Resolves event types (SENT, DELIVERED, etc.) and detailed provider logs. Get the delivery history logs for a message
Resolves contact details (email, phone) and channel-specific delivery preferences. Get the profile data for a specific user
Resolves audience IDs, names, and filter criteria used for segmentation. List saved audiences for targeted notifications
Resolves brand names, colors, and logo settings used for white-labeling notifications. List custom brands configured in Courier
Resolves message IDs, recipient identifiers, status (SENT, DELIVERED, OPENED, CLICKED), and timestamps. List sent messages and their current status
Resolves list IDs, names, and subscriber counts. List subscription lists for managing recipients
Resolves template names, IDs, and supported channels. List available notification templates
Resolves user IDs, roles, and account association details. List users registered in the Courier workspace
Touches recipient profile, template engine, and multi-channel provider boundaries. Send a notification to a recipient
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Courier 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 Courier 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 Courier queries for multi-turn workflows
Courier in LangChain
Why run Courier with Vinkius?
The Courier 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 Courier using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Courier and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Courier 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
Courier for LangChain
Every request between LangChain and Courier 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 Courier Auth Token?
Log in to your Courier dashboard, navigate to Settings > API Keys, and you will find your Auth Token there. Use the 'Published' key for production environments.
What channels are supported?
Courier supports dozens of providers for Email (SendGrid, Mailgun), SMS (Twilio, MessageBird), Push (Firebase, OneSignal), and Chat (Slack, Discord).
Can I track if a message was opened?
Yes, the agent can use the get_message_details tool to check the status of a specific message, which includes tracking events like 'OPENED' or 'CLICKED' if supported by the provider.
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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