How do I find my Memberstack Secret Key?

Log in to Memberstack, go to Settings > API Keys, and you can generate or copy your Secret Key from there.

Can I search for members by email?

Yes! Use the `search_members` tool and provide the email address to find a specific member record.

Is my member data secure?

Absolutely. Your token is encrypted at rest and injected securely at runtime.

Memberstack MCP Server for LangChain 10 tools — connect in under 2 minutes

Name: Memberstack
Availability: InStock
Author: Vinkius

python.langchain.com/docs/integrations/tools/mcp

Built by Vinkius GDPR 10 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Memberstack through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MultiServerMCPClient({
        "memberstack": {
            "transport": "streamable_http",
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
        }
    }) as client:
        tools = client.get_tools()
        agent = create_react_agent(
            ChatOpenAI(model="gpt-4o"),
            tools,
        )
        response = await agent.ainvoke({
            "messages": [{
                "role": "user",
                "content": "Using Memberstack, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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 Memberstack MCP Server

Connect your Memberstack account to any AI agent and take full control of your member management and authentication workflows through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Memberstack 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.

What you can do

Member Administration — List all members, search by email, and fetch detailed metadata including plan connections
Plan Management — Enumerate membership plans and retrieve detailed configurations for free and paid offerings
Custom Data Handling — List and manage custom fields defined for your members
Promotion & Offers — Access and monitor active coupons and marketing promotions
App Visibility — Retrieve high-level information about your current Memberstack application configuration

The Memberstack MCP Server exposes 10 tools through the Vinkius. Connect it to LangChain 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 Memberstack to LangChain via MCP

Follow these steps to integrate the Memberstack MCP Server with LangChain.

Install dependencies

Run pip install langchain langchain-mcp-adapters langgraph langchain-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save the code and run python agent.py

Explore tools

The agent discovers 10 tools from Memberstack via MCP

Why Use LangChain with the Memberstack MCP Server

LangChain provides unique advantages when paired with Memberstack through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Memberstack MCP tools with 500+ LangChain components

Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

Memory and conversation persistence let agents maintain context across Memberstack queries for multi-turn workflows

Memberstack + LangChain Use Cases

Practical scenarios where LangChain combined with the Memberstack MCP Server delivers measurable value.

RAG with live data: combine Memberstack tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query Memberstack, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Memberstack tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every Memberstack tool call, measure latency, and optimize your agent's performance

Memberstack MCP Tools for LangChain (10)

These 10 tools become available when you connect Memberstack to LangChain via MCP:

get_application_info

Get application details

get_member

Get details for a specific member

get_member_plans

Get plans for a specific member

get_plan

Get details for a specific plan

list_coupons

List all discount coupons

list_custom_fields

List member custom fields

list_members

List all members

list_plans

List all membership plans

list_promotions

List active promotions

search_members

Search members by email

Example Prompts for Memberstack in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Memberstack immediately.

"List the last 5 members who joined."

"Show details for member ID 'mem_12345'."

"What are my available membership plans?"

Troubleshooting Memberstack MCP Server with LangChain

Common issues when connecting Memberstack to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Memberstack + LangChain FAQ

Common questions about integrating Memberstack MCP Server with LangChain.

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.