How to integrate Flutterwave MCP with LangChain

This guide walks you through connecting Flutterwave to LangChain using the Composio tool router. By the end, you'll have a working Flutterwave agent that can create a payment link for a new order, generate virtual account numbers for customers, fetch details of a specific subaccount through natural language commands. This guide will help you understand how to give your LangChain agent real control over a Flutterwave account through Composio's Flutterwave MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

Flutterwave logoFlutterwave
Api Key

Flutterwave is a global payments platform enabling businesses to accept and send payments across Africa and beyond. Its robust APIs simplify cross-border transactions and financial operations.

53 Tools

Introduction

This guide walks you through connecting Flutterwave to LangChain using the Composio tool router. By the end, you'll have a working Flutterwave agent that can create a payment link for a new order, generate virtual account numbers for customers, fetch details of a specific subaccount through natural language commands.

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

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

Also integrate Flutterwave with

TL;DR

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

The Flutterwave MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Flutterwave account. It provides structured and secure access to your payment infrastructure, so your agent can perform actions like creating payment links, managing beneficiaries, setting up virtual accounts, and handling subaccounts on your behalf.

  • Instant payment link creation: Let your agent generate hosted payment URLs for one-time or recurring transactions, making it easy to collect payments from customers.
  • Beneficiary management: Add, fetch, or remove transfer beneficiaries directly through your agent, streamlining the process of managing who receives your payouts.
  • Virtual account generation: Automatically create single or bulk virtual bank accounts for customers, enabling seamless and trackable bank transfers.
  • Subaccount setup and retrieval: Have your agent create, configure, or fetch subaccounts to manage split payments and disbursements for complex business needs.
  • Payment link control: Disable active payment links when necessary to prevent further transactions, ensuring you stay in control of your payment flows.

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 Flutterwave 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 Flutterwave 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: ['flutterwave']
    }
);

const url = session.mcp.url;
What's happening:
  • We're creating a Tool Router session that gives your agent access to Flutterwave 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 Flutterwave tools as needed
8

Configure the agent with the MCP URL

const client = new MultiServerMCPClient({
    "flutterwave-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 Flutterwave MCP server via HTTP
  • The client is configured with a name and the URL from our Tool Router session
  • getTools() retrieves all available Flutterwave 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 Flutterwave 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 Flutterwave 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: ['flutterwave']
        }
    );

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

Cancel Payment Plan

Tool to cancel a payment plan.

Create Beneficiary

Tool to create a new transfer beneficiary.

Create Bulk Tokenized Charge

Tool to create a bulk tokenized charge batch for charging multiple previously tokenized cards.

Create Bulk Virtual Account Numbers

Tool to create multiple virtual account numbers.

Create Payment Link

Tool to create a hosted payment link.

Create Payment Plan

Tool to create a new payment plan.

Create Refund

Tool to create a refund for a transaction.

Create Subaccount

Tool to create a new subaccount.

Create Virtual Account

Tool to create a new virtual account number.

Delete Beneficiary

Tool to delete a beneficiary by ID.

Delete Subaccount

Tool to delete a subaccount by ID.

Disable Payment Link

Tool to disable a Flutterwave payment link.

Fetch Beneficiary

Tool to retrieve details of a specific beneficiary by ID.

Fetch Subaccount

Tool to retrieve details of a specific subaccount by ID.

Generate Transaction Reference

Tool to generate a unique transaction reference.

Get All Subscriptions

Tool to retrieve all subscriptions, including cancelled ones.

Retrieve all transactions

Tool to retrieve a list of all transactions with optional filters.

Get All Wallet Balances

Tool to retrieve all wallet balances across currencies.

Get Balances per Currency

Tool to retrieve wallet balance for a specific currency.

Get Bank Branches

Tool to retrieve branch codes for a specific bank.

Get Banks by Country

Tool to retrieve all banks in a specified country.

Get Bill Categories

Tool to retrieve available bill categories.

Get Bulk Tokenized Charge Status

Tool to retrieve the status of a bulk tokenized charge operation by ID.

Get Bulk Virtual Account

Tool to fetch bulk virtual account details using batch ID.

Get Multiple Refund Transactions

Tool to retrieve multiple refund transactions with optional filters.

Get Payment Plan

Tool to retrieve details of a specific payment plan by ID.

Get Payment Plans

Tool to retrieve a list of all payment plans.

Get Refund

Tool to retrieve details of a specific refund by ID.

Get Transaction

Tool to retrieve details of a specific transaction by ID.

Get Transaction Fee

Tool to retrieve the fee for a specific transaction.

Get Transfer Fee

Tool to retrieve the fee for initiating a transfer.

Get Transfer Rates

Tool to retrieve exchange rates for transfers between currencies.

Get Virtual Account Number

Tool to fetch details of a virtual account number by order reference.

Get Wallet Statement

Tool to retrieve wallet balance history with optional filters.

Initiate BVN Verification

Tool to initiate BVN verification consent.

Initiate Mobile Money Tanzania

Tool to initiate a mobile money payment in Tanzania.

List All Beneficiaries

Tool to list all saved beneficiaries.

List Biller Products

Tool to retrieve all products available under a specific biller.

List Billers

Tool to retrieve available billers.

List Chargebacks

Tool to retrieve a list of chargebacks with optional filtering by Flutterwave reference.

List Payout Subaccount Refunds

Tool to list all payout subaccount refunds with pagination support.

List Payout Subaccounts

Tool to list all payout subaccounts.

List Recurring Bills

Tool to retrieve all recurring bill payments.

List all settlements

Tool to retrieve all settlements with optional filters.

List All Subaccounts

Tool to fetch all collection subaccounts.

List Transfers

Tool to fetch a list of bulk transfers from your Flutterwave account.

Resolve Bank Account

Tool to verify and resolve bank account details.

Resolve Card BIN

Tool to resolve and retrieve card BIN information from Flutterwave.

Update Payment Plan

Tool to update an existing payment plan.

Update Subaccount

Tool to update an existing subaccount.

Validate Bill Item

Tool to validate a bill service before payment.

Verify Transaction by Reference

Tool to verify a transaction using its transaction reference.

View Transaction Timeline

Tool to retrieve the event timeline for a transaction.

FAQ

Frequently asked questions

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

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

Start with Flutterwave.It takes 30 seconds.

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

Start building