Memberstack MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Memberstack MCP or direct API to onboard new members, manage user access, handle payments, and update member details through natural language.

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Memberstack lets you add user authentication, payments, and member management to your website—no backend code required. Easily manage your site's members and subscriptions from a single platform.

8 Tools

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Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

Every Memberstack action and event your agent gets out of the box.

Create Member

Tool to create a new member in your application.

Delete Member

Tool to permanently delete a member from your application.

Get Member

Tool to retrieve a specific member by ID or email.

List Data Tables

Tool to retrieve all data tables in your Memberstack application.

List Members

Tool to retrieve a paginated list of all members in your application.

List Plans

Tool to list all available membership plans.

Remove Free Plan

Tool to remove a free plan from an existing member.

Update Member

Tool to update an existing member's information.

SETUP GUIDE

Connect Memberstack MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
Install the Composio SDK and Claude Agent SDK
2

Create Tool Router Session

typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });

console.log("Creating Tool Router session...");
const { mcp } = await composio.create('your-user-id');
console.log(`Tool Router session created: ${mcp.url}`);
Initialize the Composio client and create a Tool Router session
3

Connect to AI Agent

typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText, stepCountIs } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: mcp.url,
    headers: { 'x-api-key': 'your-composio-api-key' }
  }
});

const tools = await client.tools();

const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{ role: 'user', content: 'List all active members in Memberstack' }],
  stopWhen: stepCountIs( 5 )
});

console.log(`Agent: ${text}`);
Use the MCP server with your AI agent
SETUP GUIDE

Connect Memberstack API Tool with your Agent

1

Install Composio

typescript
npm install @composio/openai
Install the Composio SDK
2

Initialize Composio and Create Tool Router Session

typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
Import and initialize Composio client, then create a Tool Router session
3

Execute Memberstack Tools via Tool Router with Your Agent

typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'List all active members with paid plans'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
Get tools from Tool Router session and execute Memberstack actions with your Agent

Why Use Composio?

AI Native Memberstack Integration

  • Supports both Memberstack MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Memberstack data

Managed Auth

  • Built-in API Key handling with secure storage and rotation
  • Central place to manage, scope, and revoke Memberstack access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Memberstack
  • Scoped, least privilege access to Memberstack resources
  • Full audit trail of agent actions to support review and compliance
FAQ

Frequently asked questions

Yes, Memberstack requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Memberstack connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your Memberstack account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Memberstack actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Memberstack at any time.

When you connect a Memberstack account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Memberstack as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Memberstack. If Memberstack lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Memberstack at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Memberstack connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Memberstack rejects the old key. Create a new key in Memberstack and reconnect the account from the Composio dashboard or by asking your agent to reconnect Memberstack. Nothing else changes.

Composio's free plan includes 100,000 tool calls per month with no credit card, which covers most personal Memberstack use. Paid plans add higher limits and team features. Your Memberstack plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Memberstack accounts).

With Composio, you connect Memberstack once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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