Bring Referral Marketing
to LangChain
Create your Vinkius account to connect Friendbuy to LangChain and start using all 8 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.
Compatible with every major AI agent and IDE
What is the Friendbuy MCP Server?
Connect your Friendbuy account to any AI agent to automate your referral programs and customer loyalty workflows through the Model Context Protocol (MCP). Friendbuy is a high-growth referral marketing platform that powers word-of-mouth campaigns for leading brands. This MCP server enables you to track referral events, log conversions, and retrieve reward distributions directly through natural conversation.
Key Features
- Referral Rewards Tracking — List all distributed referral rewards and filter them by advocate to understand who your top promoters are.
- Conversion Logging — Post purchase and signup events programmatically to trigger the referral reward lifecycle.
- Code Generation & Verification — Create personal referral codes for customers and check their active statuses instantly.
- Purchase History — Retrieve a list of all tracked purchases that have been attributed to referral campaigns.
- Webhook Monitoring — List configured webhooks to ensure your internal systems are receiving real-time reward notifications.
- API Health Checks — Verify your connection to both the Merchant API and Developer API v2 environments seamlessly.
How it works
- Subscribe to this server through the Vinkius Marketplace
- Enter your Friendbuy Access Key and Secret Key (found in your Developer Settings)
- Start managing your referral campaigns from Claude, Cursor, or any MCP client
Who is this for?
- Growth Marketers — quickly check the status of a specific referral code or list recent rewards without navigating the dashboard.
- E-commerce Ops — automate the logging of offline or subscription purchases to ensure advocates get rewarded.
- Customer Support — verify if a specific customer's referral resulted in a successful conversion via simple AI commands.
Built-in capabilities (8)
Verify API access
Generate share code
Check code status
List awarded referrals
List tracked purchases
List webhook configs
Log a purchase
Log a signup
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Friendbuy through native MCP adapters. Connect 8 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 Friendbuy 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 Friendbuy queries for multi-turn workflows
Friendbuy in LangChain
Why run Friendbuy with Vinkius?
The Friendbuy 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 8 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 Friendbuy using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Friendbuy and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Friendbuy 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
Friendbuy for LangChain
Every request between LangChain and Friendbuy 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 my API Keys for Friendbuy?
Log in to your Friendbuy account, go to Settings > Developer, and you will find your Access Key and Secret Key.
Can I manually log a purchase through the agent?
Yes! Use the 'track_conversion_purchase' tool. Provide the Order ID, amount, and customer email. If you include the 'referralCode', it will trigger the advocate's reward.
How do I verify if a referral code is still valid?
Use the 'get_referral_code_status' tool. The agent will check the Developer API and return the active status and associated reward value.
Is it possible to list webhooks?
Yes, the 'list_webhooks' tool retrieves all active webhook configurations so you can verify where real-time reward notifications are being sent.
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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