# How to integrate Tapfiliate MCP with LangChain

```json
{
  "title": "How to integrate Tapfiliate MCP with LangChain",
  "toolkit": "Tapfiliate",
  "toolkit_slug": "tapfiliate",
  "framework": "LangChain",
  "framework_slug": "langchain",
  "url": "https://composio.dev/toolkits/tapfiliate/framework/langchain",
  "markdown_url": "https://composio.dev/toolkits/tapfiliate/framework/langchain.md",
  "updated_at": "2026-05-06T08:30:45.761Z"
}
```

## Introduction

This guide walks you through connecting Tapfiliate to LangChain using the Composio tool router. By the end, you'll have a working Tapfiliate agent that can list all active affiliates for this month, retrieve payout methods for affiliate jane doe, create a payment for affiliate id 12345 through natural language commands.
This guide will help you understand how to give your LangChain agent real control over a Tapfiliate account through Composio's Tapfiliate MCP server.
Before we dive in, let's take a quick look at the key ideas and tools involved.

## Also integrate Tapfiliate with

- [OpenAI Agents SDK](https://composio.dev/toolkits/tapfiliate/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/tapfiliate/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/tapfiliate/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/tapfiliate/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/tapfiliate/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/tapfiliate/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/tapfiliate/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/tapfiliate/framework/cli)
- [Google ADK](https://composio.dev/toolkits/tapfiliate/framework/google-adk)
- [Vercel AI SDK](https://composio.dev/toolkits/tapfiliate/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/tapfiliate/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/tapfiliate/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/tapfiliate/framework/crew-ai)

## TL;DR

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

The Tapfiliate MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Tapfiliate account. It provides structured and secure access to your affiliate and referral program data, so your agent can perform actions like managing affiliates, tracking commissions, handling payments, and organizing programs on your behalf.
- Affiliate management and insights: Instantly list all affiliates, retrieve detailed affiliate profiles, or remove affiliates as your programs evolve.
- Commission tracking and reporting: Let your agent fetch comprehensive commission records, apply filters, and access historical payouts for monitoring performance.
- Automated payment handling: Effortlessly list, retrieve, or create payments to credit affiliates, ensuring accurate and timely compensation.
- Payout method discovery: Retrieve available payout options for affiliates to streamline compensation workflows and support diverse payment needs.
- Program organization and overview: Quickly list all affiliate programs and assets, helping you stay on top of your marketing initiatives and campaign structure.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `TAPFILIATE_AFFILIATES_LIST_ALL_AFFILIATES` | List all affiliates | Tool to list all affiliates. use after verifying api credentials to fetch affiliates with optional filters. |
| `TAPFILIATE_AFFILIATES_RETRIEVE_AN_AFFILIATE` | Retrieve an Affiliate | Tool to retrieve details of a specific affiliate. use when you have the affiliate id and need full affiliate profile. |
| `TAPFILIATE_COMMISSIONS_LIST_ALL_COMMISSIONS` | List all commissions | Tool to retrieve all commissions. use when you need to fetch commission records with optional filters and pagination after confirming valid api credentials. |
| `TAPFILIATE_DELETE_AN_AFFILIATE` | Delete an affiliate | Tool to delete a specific affiliate. use when you need to remove an affiliate by their affiliate id after confirming it exists. |
| `TAPFILIATE_AFFILIATES_LIST_ALL_AFFILIATES` | List all affiliates | Tool to list all affiliates. use after confirming api access to fetch affiliates with optional filters. |
| `TAPFILIATE_PAYMENTS_CREATE_A_PAYMENT` | Create a Payment | Tool to create a payment. use when you need to credit an affiliate after confirming transaction details. |
| `TAPFILIATE_PAYMENTS_LIST_ALL_PAYMENTS` | List all payments | Tool to list all payments. use when you need to retrieve paginated payment records after confirming api credentials. |
| `TAPFILIATE_PAYMENTS_RETRIEVE_A_PAYMENT` | Retrieve a Payment | Tool to retrieve details of a specific payment. use when you have the payment id and need full payment information. |
| `TAPFILIATE_PAYOUT_METHODS_LIST_ALL_PAYOUT_METHODS` | List all payout methods | Tool to retrieve a list of all payout methods for an affiliate. use when fetching available payment options for an affiliate. |
| `TAPFILIATE_PROGRAMS_LIST_ALL_PROGRAMS` | List all programs | Tool to list all programs. use after confirming api credentials to fetch program list with optional asset filters. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

The Tapfiliate MCP server is an implementation of the Model Context Protocol that connects your AI agent to Tapfiliate. It provides structured and secure access so your agent can perform Tapfiliate operations on your behalf through a secure, permission-based interface.
With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster.

## Step-by-step Guide

### 1. Prerequisites

No description provided.

### 1. Getting API Keys for OpenAI and Composio

OpenAI API Key
- Go to the [OpenAI dashboard](https://platform.openai.com/settings/organization/api-keys) 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](https://dashboard.composio.dev?utm_source=toolkits&utm_medium=framework_docs).
- Navigate to your API settings and generate a new API key.
- Store this key securely as you'll need it for authentication.

### 2. Install dependencies

No description provided.
```python
pip install composio-langchain langchain-mcp-adapters langchain python-dotenv
```

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

### 3. Set up environment variables

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
```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
```

### 4. Import dependencies

No description provided.
```python
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain.agents import create_agent
from dotenv import load_dotenv
from composio import Composio
import asyncio
import os

load_dotenv()
```

```typescript
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();
```

### 5. Initialize Composio client

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 Tapfiliate tools
- Validating that COMPOSIO_USER_ID is also set before proceeding
```python
async def main():
    composio = Composio(api_key=os.getenv("COMPOSIO_API_KEY"))

    if not os.getenv("COMPOSIO_API_KEY"):
        raise ValueError("COMPOSIO_API_KEY is not set")
    if not os.getenv("COMPOSIO_USER_ID"):
        raise ValueError("COMPOSIO_USER_ID is not set")
```

```typescript
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()
    });
```

### 6. Create a Tool Router session

What's happening:
- We're creating a Tool Router session that gives your agent access to Tapfiliate 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 Tapfiliate tools as needed
```python
# Create Tool Router session for Tapfiliate
session = composio.create(
    user_id=os.getenv("COMPOSIO_USER_ID"),
    toolkits=['tapfiliate']
)

url = session.mcp.url
```

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

const url = session.mcp.url;
```

### 7. Configure the agent with the MCP URL

No description provided.
```python
client = MultiServerMCPClient({
    "tapfiliate-agent": {
        "transport": "streamable_http",
        "url": session.mcp.url,
        "headers": {
            "x-api-key": os.getenv("COMPOSIO_API_KEY")
        }
    }
})

tools = await client.get_tools()

agent = create_agent("gpt-5", tools)
```

```typescript
const client = new MultiServerMCPClient({
    "tapfiliate-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 });
```

### 8. Set up interactive chat interface

No description provided.
```python
conversation_history = []

print("Chat started! Type 'exit' or 'quit' to end the conversation.\n")
print("Ask any Tapfiliate related question or task to the agent.\n")

while True:
    user_input = input("You: ").strip()

    if user_input.lower() in ['exit', 'quit', 'bye']:
        print("\nGoodbye!")
        break

    if not user_input:
        continue

    conversation_history.append({"role": "user", "content": user_input})
    print("\nAgent is thinking...\n")

    response = await agent.ainvoke({"messages": conversation_history})
    conversation_history = response['messages']
    final_response = response['messages'][-1].content
    print(f"Agent: {final_response}\n")
```

```typescript
let conversationHistory: any[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end the conversation.\n");
console.log("Ask any Tapfiliate 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);
    });
```

### 9. Run the application

No description provided.
```python
if __name__ == "__main__":
    asyncio.run(main())
```

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

## Complete Code

```python
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain.agents import create_agent
from dotenv import load_dotenv
from composio import Composio
import asyncio
import os

load_dotenv()

async def main():
    composio = Composio(api_key=os.getenv("COMPOSIO_API_KEY"))
    
    if not os.getenv("COMPOSIO_API_KEY"):
        raise ValueError("COMPOSIO_API_KEY is not set")
    if not os.getenv("COMPOSIO_USER_ID"):
        raise ValueError("COMPOSIO_USER_ID is not set")
    
    session = composio.create(
        user_id=os.getenv("COMPOSIO_USER_ID"),
        toolkits=['tapfiliate']
    )

    url = session.mcp.url
    
    client = MultiServerMCPClient({
        "tapfiliate-agent": {
            "transport": "streamable_http",
            "url": url,
            "headers": {
                "x-api-key": os.getenv("COMPOSIO_API_KEY")
            }
        }
    })
    
    tools = await client.get_tools()
  
    agent = create_agent("gpt-5", tools)
    
    conversation_history = []
    
    print("Chat started! Type 'exit' or 'quit' to end the conversation.\n")
    print("Ask any Tapfiliate related question or task to the agent.\n")
    
    while True:
        user_input = input("You: ").strip()
        
        if user_input.lower() in ['exit', 'quit', 'bye']:
            print("\nGoodbye!")
            break
        
        if not user_input:
            continue
        
        conversation_history.append({"role": "user", "content": user_input})
        print("\nAgent is thinking...\n")
        
        response = await agent.ainvoke({"messages": conversation_history})
        conversation_history = response['messages']
        final_response = response['messages'][-1].content
        print(f"Agent: {final_response}\n")

if __name__ == "__main__":
    asyncio.run(main())
```

```typescript
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: ['tapfiliate']
        }
    );

    const url = session.mcp.url;
    
    const client = new MultiServerMCPClient({
        "tapfiliate-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 Tapfiliate 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 Tapfiliate 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.

## How to build Tapfiliate MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/tapfiliate/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/tapfiliate/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/tapfiliate/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/tapfiliate/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/tapfiliate/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/tapfiliate/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/tapfiliate/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/tapfiliate/framework/cli)
- [Google ADK](https://composio.dev/toolkits/tapfiliate/framework/google-adk)
- [Vercel AI SDK](https://composio.dev/toolkits/tapfiliate/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/tapfiliate/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/tapfiliate/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/tapfiliate/framework/crew-ai)

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- [Segmetrics](https://composio.dev/toolkits/segmetrics) - Segmetrics is a marketing analytics platform that reveals detailed insights into your customer journeys. It helps businesses optimize marketing strategies with accurate, actionable reporting.
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- [Sidetracker](https://composio.dev/toolkits/sidetracker) - Sidetracker is a marketing analytics platform that tracks expenses, sales funnels, and customer journeys. It helps optimize marketing spend and visualize campaign performance from start to finish.
- [Stannp](https://composio.dev/toolkits/stannp) - Stannp is an API-driven direct mail platform for sending postcards and letters programmatically. It lets you automate physical mail delivery—no manual printing or mailing required.
- [Tpscheck](https://composio.dev/toolkits/tpscheck) - Tpscheck is a real-time service for verifying UK phone numbers against TPS and CTPS registers. It helps prevent unwanted marketing calls and ensures compliance with UK telemarketing laws.
- [Gmail](https://composio.dev/toolkits/gmail) - Gmail is Google's email service with powerful spam protection, search, and G Suite integration. It keeps your inbox organized and makes communication fast and reliable.
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- [Google Drive](https://composio.dev/toolkits/googledrive) - Google Drive is a cloud storage platform for uploading, sharing, and collaborating on files. It's perfect for keeping your documents accessible and organized across devices.
- [Outlook](https://composio.dev/toolkits/outlook) - Outlook is Microsoft's email and calendaring platform for unified communications and scheduling. It helps users stay organized with powerful email, contacts, and calendar management.
- [Twitter](https://composio.dev/toolkits/twitter) - Twitter is a social media platform for sharing real-time updates, conversations, and news. Stay connected, informed, and engaged with communities worldwide.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Tapfiliate MCP?

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

### Can I use Tool Router MCP with LangChain?

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 Tapfiliate tools.

### Can I manage the permissions and scopes for Tapfiliate while using Tool Router?

Yes, absolutely. You can configure which Tapfiliate 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.

### How safe is my data with Composio Tool Router?

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 Tapfiliate data and credentials are handled as safely as possible.

---
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