How to integrate 21risk MCP with LangChain

This guide walks you through connecting 21risk to LangChain using the Composio tool router. By the end, you'll have a working 21risk agent that can download audit reports for last quarter, list all sites with open compliance issues, fetch monthly risk data for top properties through natural language commands. This guide will help you understand how to give your LangChain agent real control over a 21risk account through Composio's 21risk MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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21RISK is a web app built for easy checklist, audit, and compliance management. It streamlines risk processes so teams can focus on what matters.

8 Tools

Introduction

This guide walks you through connecting 21risk to LangChain using the Composio tool router. By the end, you'll have a working 21risk agent that can download audit reports for last quarter, list all sites with open compliance issues, fetch monthly risk data for top properties through natural language commands.

This guide will help you understand how to give your LangChain agent real control over a 21risk account through Composio's 21risk MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate 21risk with

OpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenClawHermesCLIGoogle ADKVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Get and set up your OpenAI and Composio API keys
  • Connect your 21risk project to Composio
  • Create a Tool Router MCP session for 21risk
  • Initialize an MCP client and retrieve 21risk tools
  • Build a LangChain agent that can interact with 21risk
  • Set up an interactive chat interface for testing

What is LangChain?

LangChain is a framework for developing applications powered by language models. It provides tools and abstractions for building agents that can reason, use tools, and maintain conversation context.

Key features include:

  • Agent Framework: Build agents that can use tools and make decisions
  • MCP Integration: Connect to external services through Model Context Protocol adapters
  • Memory Management: Maintain conversation history across interactions
  • Multi-Provider Support: Works with OpenAI, Anthropic, and other LLM providers

What is the 21risk MCP server, and what's possible with it?

The 21risk MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your 21risk account. It provides structured and secure access to your checklists, audits, compliance data, and risk models, so your agent can retrieve reports, analyze compliance status, and streamline audit management on your behalf.

  • Automated compliance insights and analytics: Instantly fetch compliance data for sites, categories, or specific questions to support analytics and reporting needs.
  • Audit report management: Retrieve draft, published, or scheduled audit reports, enabling your agent to monitor progress or summarize findings.
  • Risk model and category exploration: Let your agent list and filter available risk models and categories to assist with compliance checks and risk assessments.
  • Monthly item tracking and analysis: Query detailed fact tables of items per month for granular, time-based risk or compliance monitoring.
  • Site, organization, and property retrieval: Automatically list sites, organizations, and property details, helping you organize and cross-reference risk and compliance data efficiently.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step10 STEPS
1

Prerequisites

Before starting this tutorial, make sure you have:
  • Python 3.10 or higher installed on your system
  • A Composio account with an API key
  • An OpenAI API key
  • Basic familiarity with Python and async programming
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key. You'll need credits to use the models, or you can connect to another model provider.
  • Keep the API key safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Navigate to your API settings and generate a new API key.
  • Store this key securely as you'll need it for authentication.
3

Install dependencies

npm install @composio/langchain @langchain/core @langchain/openai @langchain/mcp-adapters dotenv

Install the required packages for LangChain with MCP support.

What's happening:

  • @composio/langchain provides Composio integration for LangChain
  • @langchain/mcp-adapters enables MCP client connections
  • @langchain/core is the core agent framework
  • dotenv/config loads environment variables
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_composio_user_id_here
OPENAI_API_KEY=your_openai_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates your requests to Composio's API
  • COMPOSIO_USER_ID identifies the user for session management
  • OPENAI_API_KEY enables access to OpenAI's language models
5

Import dependencies

import { Composio } from '@composio/core';
import { LangchainProvider } from '@composio/langchain';
import { MultiServerMCPClient } from "@langchain/mcp-adapters";
import { createAgent } from "langchain";
import * as readline from 'readline';
import 'dotenv/config';

dotenv.config();
What's happening:
  • We're importing LangChain's MCP adapter and Composio SDK
  • The dotenv/config import loads environment variables from your .env file
  • This setup prepares the foundation for connecting LangChain with 21risk functionality through MCP
6

Initialize Composio client

const composioApiKey = process.env.COMPOSIO_API_KEY;
const userId = process.env.COMPOSIO_USER_ID;

if (!composioApiKey) throw new Error('COMPOSIO_API_KEY is not set');
if (!userId) throw new Error('COMPOSIO_USER_ID is not set');

async function main() {
    const composio = new Composio({
        apiKey: composioApiKey as string,
        provider: new LangchainProvider()
    });
What's happening:
  • We're loading the COMPOSIO_API_KEY from environment variables and validating it exists
  • Creating a Composio instance that will manage our connection to 21risk tools
  • Validating that COMPOSIO_USER_ID is also set before proceeding
7

Create a Tool Router session

const session = await composio.create(
    userId as string,
    {
        toolkits: ['_21risk']
    }
);

const url = session.mcp.url;
What's happening:
  • We're creating a Tool Router session that gives your agent access to 21risk tools
  • The create method takes the user ID and specifies which toolkits should be available
  • The returned session.mcp.url is the MCP server URL that your agent will use
  • This approach allows the agent to dynamically load and use 21risk tools as needed
8

Configure the agent with the MCP URL

const client = new MultiServerMCPClient({
    "_21risk-agent": {
        transport: "http",
        url: url,
        headers: {
            "x-api-key": process.env.COMPOSIO_API_KEY
        }
    }
});

const tools = await client.getTools();

const agent = createAgent({ model: "gpt-5", tools });
What's happening:
  • We're creating a MultiServerMCPClient that connects to our 21risk MCP server via HTTP
  • The client is configured with a name and the URL from our Tool Router session
  • getTools() retrieves all available 21risk tools that the agent can use
  • We're creating a LangChain agent using the GPT-5 model
9

Set up interactive chat interface

let conversationHistory: any[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end the conversation.\n");
console.log("Ask any  21risk related question or task to the agent.\n");

const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
});

rl.prompt();

rl.on('line', async (userInput: string) => {
    const trimmedInput = userInput.trim();

    if (['exit', 'quit', 'bye'].includes(trimmedInput.toLowerCase())) {
        console.log("\nGoodbye!");
        rl.close();
        process.exit(0);
    }

    if (!trimmedInput) {
        rl.prompt();
        return;
    }

    conversationHistory.push({ role: "user", content: trimmedInput });
    console.log("\nAgent is thinking...\n");

    const response = await agent.invoke({ messages: conversationHistory });
    conversationHistory = response.messages;

    const finalResponse = response.messages[response.messages.length - 1]?.content;
    console.log(`Agent: ${finalResponse}\n`);
        
        rl.prompt();
    });

    rl.on('close', () => {
        console.log('\n👋 Session ended.');
        process.exit(0);
    });
What's happening:
  • We initialize an empty conversationHistory list to maintain context across interactions
  • A readline interface is used to continuously accept user input from the command line
  • When a user types a message, it's added to the conversation history and sent to the agent
  • The agent processes the request using the invoke() method with the full conversation history
  • Users can type 'exit', 'quit', or 'bye' to end the chat session gracefully
10

Run the application

main().catch((err) => {
    console.error('Fatal error:', err);
    process.exit(1);
});
What's happening:
  • We call the main() function to start the application

Complete Code

Here's the complete code to get you started with 21risk and LangChain:

import { Composio } from '@composio/core';
import { LangchainProvider } from '@composio/langchain';
import { MultiServerMCPClient } from "@langchain/mcp-adapters";  
import { createAgent } from "langchain";
import * as readline from 'readline';
import 'dotenv/config';

const composioApiKey = process.env.COMPOSIO_API_KEY;
const userId = process.env.COMPOSIO_USER_ID;

if (!composioApiKey) throw new Error('COMPOSIO_API_KEY is not set');
if (!userId) throw new Error('COMPOSIO_USER_ID is not set');

async function main() {
    const composio = new Composio({
        apiKey: composioApiKey as string,
        provider: new LangchainProvider()
    });

    const session = await composio.create(
        userId as string,
        {
            toolkits: ['_21risk']
        }
    );

    const url = session.mcp.url;
    
    const client = new MultiServerMCPClient({
        "_21risk-agent": {
            transport: "http",
            url: url,
            headers: {
                "x-api-key": process.env.COMPOSIO_API_KEY
            }
        }
    });
    
    const tools = await client.getTools();
  
    const agent = createAgent({ model: "gpt-5", tools });
    
    let conversationHistory: any[] = [];
    
    console.log("Chat started! Type 'exit' or 'quit' to end the conversation.\n");
    console.log("Ask any  21risk related question or task to the agent.\n");
    
    const rl = readline.createInterface({
        input: process.stdin,
        output: process.stdout,
        prompt: 'You: '
    });

    rl.prompt();

    rl.on('line', async (userInput: string) => {
        const trimmedInput = userInput.trim();
        
        if (['exit', 'quit', 'bye'].includes(trimmedInput.toLowerCase())) {
            console.log("\nGoodbye!");
            rl.close();
            process.exit(0);
        }
        
        if (!trimmedInput) {
            rl.prompt();
            return;
        }
        
        conversationHistory.push({ role: "user", content: trimmedInput });
        console.log("\nAgent is thinking...\n");
        
        const response = await agent.invoke({ messages: conversationHistory });
        conversationHistory = response.messages;
        
        const finalResponse = response.messages[response.messages.length - 1]?.content;
        console.log(`Agent: ${finalResponse}\n`);
        
        rl.prompt();
    });

    rl.on('close', () => {
        console.log('\nSession ended.');
        process.exit(0);
    });
}

main().catch((err) => {
    console.error('Fatal error:', err);
    process.exit(1);
});

Conclusion

You've successfully built a LangChain agent that can interact with 21risk through Composio's Tool Router.

Key features of this implementation:

  • Dynamic tool loading through Composio's Tool Router
  • Conversation history maintenance for context-aware responses
  • Async Python provides clean, efficient execution of agent workflows
You can extend this further by adding error handling, implementing specific business logic, or integrating additional Composio toolkits to create multi-app workflows.
TOOLS

Supported Tools

Every 21risk action and event your agent gets out of the box.

Get Compliance

Tool to retrieve compliance data for sites, categories, or questions.

Get Items (BETA)

Tool to retrieve items (BETA) from the 21RISK OData API.

Get Items Per Month

Tool to retrieve fact table data for ItemsPerMonth, one row per question per site per month.

Get Organizations

Tool to retrieve organizations from the 21RISK OData API.

Get Properties

Tool to fetch a list of properties related to sites, including COPE information and other relevant data.

Get Reports

Tool to retrieve audit reports, including draft, published, and scheduled reports.

Get RiskModel Categories

Tool to retrieve risk model categories for grouping questions and compliance checks.

Get Risk Models

Tool to retrieve risk models used for audits and compliance.

FRAMEWORKS

How to build 21risk MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use 21risk MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use 21risk MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use 21risk MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use 21risk MCP with Claude Cowork

Codex logo

Codex

Use 21risk MCP with Codex

OpenClaw logo

OpenClaw

Use 21risk MCP with OpenClaw

Hermes logo

Hermes

Use 21risk MCP with Hermes

CLI logo

CLI

Use 21risk MCP with CLI

Google ADK logo

Google ADK

Use 21risk MCP with Google ADK

Vercel AI SDK logo

Vercel AI SDK

Use 21risk MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use 21risk MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use 21risk MCP with LlamaIndex

CrewAI logo

CrewAI

Use 21risk MCP with CrewAI

FAQ

Frequently asked questions

With a standalone 21risk MCP server, the agents and LLMs can only access a fixed set of 21risk tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from 21risk and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. LangChain fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right 21risk tools.

Yes, absolutely. You can configure which 21risk scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your 21risk data and credentials are handled as safely as possible.

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