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How to integrate Brilliant directories MCP with LangChain

Connect LangChain to Brilliant directories MCP. Add a new member with company details, delete user and remove their uploaded images, and more using natural language, with authentication handled for you.

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Brilliant directories

Api Key

Brilliant Directories is an all-in-one platform for building and managing online membership communities and business directories. It streamlines listings, member management, and engagement tools into a single, easy interface.

44 Tools

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We manage OAuth, API keys, token refresh, and scopes — you just build.

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Explore the MCP Gateway

Introduction

This guide walks you through connecting Brilliant directories to LangChain using the Composio tool router. By the end, you'll have a working Brilliant directories agent that can create and search members, manage leads, publish data posts, search reviews, and update widgets through natural language commands.

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

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

For exact tool slugs and parameter tables, see the tool catalog in the Composio docs.

Also integrate Brilliant directories with

Claude Code Claude Cowork OpenAI Agents SDK Claude Agent SDK Codex OpenClaw Hermes Atomic Agent Google ADK Vercel AI SDK Mastra AI LlamaIndex CrewAI Pydantic AI AutoGen

TL;DR

Here's what you'll learn:

Get and set up your OpenAI and Composio API keys
Connect your Brilliant directories project to Composio
Create a Tool Router MCP session for Brilliant directories
Initialize an MCP client and retrieve Brilliant directories tools
Build a LangChain agent that can interact with Brilliant directories
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 Brilliant directories MCP server, and what's possible with it?

The Brilliant directories MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Brilliant directories account. It provides structured and secure access to your membership community and business directory platform, so your agent can perform actions like managing users, retrieving data categories, and automating lead and review workflows on your behalf.

User creation and management: Easily instruct your agent to create new users with detailed profiles or delete existing members, streamlining your directory's onboarding and maintenance.
Deep data category access: Ask your agent to fetch all available data categories from your site, making it simple to organize content or power dynamic site navigation experiences.
Lead field discovery and automation: Let your agent retrieve the full structure of your leads table, helping you automate lead capture, validation, or enrichment workflows with up-to-date field metadata.
Review field extraction and insights: Direct your agent to pull all available review fields, enabling smarter review management, analytics, or custom reporting based on your site’s feedback system.
User data field exploration: Have your agent fetch and analyze all user-related fields, supporting advanced user segmentation, targeted updates, or personalized communications.

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:

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

Step-by-step Guide

Step by step10 STEPS

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

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.

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

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

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 Brilliant directories functionality through MCP

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 Brilliant directories tools
Validating that COMPOSIO_USER_ID is also set before proceeding

Create a Tool Router session

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

const url = session.mcp.url;

What's happening:

We're creating a Tool Router session that gives your agent access to Brilliant directories 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 Brilliant directories tools as needed

Configure the agent with the MCP URL

const client = new MultiServerMCPClient({
    "brilliant_directories-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 Brilliant directories MCP server via HTTP
The client is configured with a name and the URL from our Tool Router session
getTools() retrieves all available Brilliant directories tools that the agent can use
We're creating a LangChain agent using the GPT-5 model

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 Brilliant directories 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

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 Brilliant directories 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: ['brilliant_directories']
        }
    );

    const url = session.mcp.url;
    
    const client = new MultiServerMCPClient({
        "brilliant_directories-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 Brilliant directories 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 Brilliant directories 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 Brilliant directories action and event your agent gets out of the box.

Create Album Photo

Tool to add a new album photo to a user's portfolio in Brilliant Directories.

Create Data Category

Creates a new data category (post type) in the Brilliant Directories website database.

Create Data Post

Tool to create a new Single Image Post (member post) in the Brilliant Directories database.

Create Lead

Tool to create a new lead in the Brilliant Directories database.

Create Portfolio Group

Creates a new multi-image portfolio post in the Brilliant Directories database.

Create Unsubscribe

Tool to add an unsubscriber to the database and unsubscribe a member from email campaigns.

Create User

Creates a Brilliant Directories user or member account with email, a password of at least six characters, and a membership plan ID, plus optional personal, contact, address, profile, and status fields.

Create Users Click

Tool to add a new user clicked link tracking record to the database.

Create Widget

Tool to create a new widget in the Brilliant Directories website database.

Delete Album Photo

Tool to delete an album photo and its related data from the database.

Delete Data Category

Tool to permanently delete a post type (data category) and all related data from the database.

Delete Lead

Tool to delete a lead and their related data from the database.

Delete Portfolio Group

Tool to delete a multi-image post (portfolio group) and its related data from the database.

Delete Unsubscribe Record

Tool to delete an unsubscribe record and its related data from the database.

Delete User

Deletes a Brilliant Directories user and related data, with an option to delete the member's uploaded image files.

Delete Users Click

Tool to delete a user clicked link and their related data from the database.

Delete Widget

Tool to delete a widget and its related data from the database.

Get Album Photo

Retrieves an album image by photo ID, returning supported metadata such as title, description, file paths, timestamps, and status.

Get Data Categories Fields

This tool retrieves all available custom fields for Data Categories (Post Types) in a Brilliant Directories website.

Get Data Category

Retrieves configuration data for a single Brilliant Directories post type by data ID, including identifying fields and search configuration.

Get Data Post

Retrieves a single image or video member post by post ID, returning supported post content, author, category, and associated user information.

Get Lead

Retrieves a lead by ID from Brilliant Directories, returning supported contact, inquiry, location, category, and other lead details.

Get Lead Fields

Returns a fixed list of lead field names, types, labels, and required and system-field flags after an API connectivity check.

Get Portfolio Group

Retrieves a multi-image post by group ID, returning supported post fields such as description, location, tags, image references, and property details when available.

Get Review

Tool to retrieve complete review data from Brilliant Directories based on review_id.

Get Reviews Fields

Returns a fixed set of review field definitions, including names, types, descriptions, and required flags.

Get Unsubscribe Record

Tool to retrieve a single unsubscriber record by ID.

Get User by ID

Tool to retrieve comprehensive data for a single user by their user_id.

Get User Data

Retrieves comprehensive user data from the Brilliant Directories database by searching for a specific property value.

Get User Clicked Link

Tool to retrieve click tracking data for a single user clicked link based on the click_id.

Get User Transactions

Retrieves payment and transaction history for a member using both user_id and client_id.

Get Widget

Retrieves the data of a single widget based on the widget_id.

Match Leads

Tool to match a batch of emails or user IDs to a specific lead record.

Search Reviews

Search reviews and their related data from the database.

Search Users

Search for users/members in the Brilliant Directories database with advanced filtering options.

Update Album Photo

Updates an existing album photo record in the Brilliant Directories database.

Update Data Category

Tool to update an existing post type (data category) record in Brilliant Directories.

Update Data Post

Updates a single image post and related data by post ID, including content, status, and metadata.

Update Lead

Updates an existing lead record in the Brilliant Directories website database.

Update Portfolio Group

Tool to update a multi-image post (portfolio group) record in the Brilliant Directories database.

Update Unsubscribe

Updates an existing unsubscribe list record in the Brilliant Directories database.

Update User

Updates an existing user record in the Brilliant Directories website database.

Update User Click Record

Updates a user clicked link record and their related data from the database.

Update Widget

Tool to update an existing widget record in the Brilliant Directories database.

FRAMEWORKS

How to build Brilliant directories MCP Agent with another framework

Claude Code

Use Brilliant directories MCP with Claude Code

Claude Cowork

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OpenAI Agents SDK

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Claude Agent SDK

Use Brilliant directories MCP with Claude Agent SDK

Codex

Use Brilliant directories MCP with Codex

OpenClaw

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Hermes

Use Brilliant directories MCP with Hermes

Atomic Agent

Use Brilliant directories MCP with Atomic Agent

Google ADK

Use Brilliant directories MCP with Google ADK

Vercel AI SDK

Use Brilliant directories MCP with Vercel AI SDK

Mastra AI

Use Brilliant directories MCP with Mastra AI

LlamaIndex

Use Brilliant directories MCP with LlamaIndex

CrewAI

Use Brilliant directories MCP with CrewAI

Pydantic AI

Use Brilliant directories MCP with Pydantic AI

AutoGen

Use Brilliant directories MCP with AutoGen

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

HubSpot

Oauth2Api Key

HubSpot is an all-in-one marketing, sales, and customer service platform. It lets teams nurture leads, automate outreach, and track every customer interaction in one place.

Salesforce

Oauth2S2s Oauth2

Salesforce is a leading CRM platform that helps businesses manage sales, service, and marketing. It centralizes customer data, enabling teams to drive growth and build strong relationships.

Apollo

Api Key

Apollo is a CRM and lead generation platform that helps businesses discover contacts and manage sales pipelines. Use it to streamline customer outreach and track your deals from one place.

Attio

Oauth2

Attio is a customizable CRM and workspace for managing your team's relationships and workflows. It helps teams organize contacts, automate tasks, and collaborate more efficiently.

FAQ

Frequently asked questions

With a standalone Brilliant directories MCP server, the agents and LLMs can only access a fixed set of Brilliant directories tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Brilliant directories 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 Brilliant directories tools.

Yes, absolutely. You can configure which Brilliant directories 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 Brilliant directories data and credentials are handled as safely as possible.

Start with Brilliant directories.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Brilliant directories tool your agent needs.Free to start.

Start building

How to integrate Brilliant directories MCP with LangChain

Connect Brilliant directories without auth hassles

Introduction

Also integrate Brilliant directories with

TL;DR

What is LangChain?

What is the Brilliant directories MCP server, and what's possible with it?

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

What is Composio SDK?

How the Composio SDK works

Step-by-step Guide

Prerequisites

Getting API Keys for OpenAI and Composio

Install dependencies

Set up environment variables

Import dependencies

Initialize Composio client

Create a Tool Router session

Configure the agent with the MCP URL

Set up interactive chat interface

Run the application

Complete Code

Conclusion

Supported Tools

How to build Brilliant directories MCP Agent with another framework

Claude Code

Claude Cowork

OpenAI Agents SDK

Claude Agent SDK

Codex

OpenClaw

Hermes

Atomic Agent

Google ADK

Vercel AI SDK

Mastra AI

LlamaIndex

CrewAI

Pydantic AI

AutoGen

Explore Other Toolkits

HubSpot

Salesforce

Apollo

Attio

Frequently asked questions

What are the differences in Tool Router MCP and Brilliant directories MCP?

Can I use Tool Router MCP with LangChain?

Can I manage the permissions and scopes for Brilliant directories while using Tool Router?

How safe is my data with Composio Tool Router?

Start with Brilliant directories.It takes 30 seconds.