# How to integrate Ko fi MCP with Pydantic AI ```json { "title": "How to integrate Ko fi MCP with Pydantic AI", "toolkit": "Ko fi", "toolkit_slug": "ko_fi", "framework": "Pydantic AI", "framework_slug": "pydantic-ai", "url": "https://composio.dev/toolkits/ko_fi/framework/pydantic-ai", "markdown_url": "https://composio.dev/toolkits/ko_fi/framework/pydantic-ai.md", "updated_at": "2026-05-12T10:16:57.264Z" } ``` ## Introduction This guide walks you through connecting Ko fi to Pydantic AI using the Composio tool router. By the end, you'll have a working Ko fi agent that can list recent supporters and donation amounts, check current membership subscriptions, show latest messages from supporters through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Ko fi account through Composio's Ko fi MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved. ## Also integrate Ko fi with - [OpenAI Agents SDK](https://composio.dev/toolkits/ko_fi/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/ko_fi/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/ko_fi/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/ko_fi/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/ko_fi/framework/codex) - [OpenClaw](https://composio.dev/toolkits/ko_fi/framework/openclaw) - [Hermes](https://composio.dev/toolkits/ko_fi/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/ko_fi/framework/cli) - [Google ADK](https://composio.dev/toolkits/ko_fi/framework/google-adk) - [LangChain](https://composio.dev/toolkits/ko_fi/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/ko_fi/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/ko_fi/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/ko_fi/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/ko_fi/framework/crew-ai) ## TL;DR Here's what you'll learn: - How to set up your Composio API key and User ID - How to create a Composio Tool Router session for Ko fi - How to attach an MCP Server to a Pydantic AI agent - How to stream responses and maintain chat history - How to build a simple REPL-style chat interface to test your Ko fi workflows ## What is Pydantic AI? Pydantic AI is a Python framework for building AI agents with strong typing and validation. It leverages Pydantic's data validation capabilities to create robust, type-safe AI applications. Key features include: - Type Safety: Built on Pydantic for automatic data validation - MCP Support: Native support for Model Context Protocol servers - Streaming: Built-in support for streaming responses - Async First: Designed for async/await patterns ## What is the Ko fi MCP server, and what's possible with it? The Ko-fi MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Ko-fi account. It provides structured and secure access to your Ko-fi platform, so your agent can help you manage donations, memberships, and supporter engagement automatically. - Donation tracking and insights: Let your agent retrieve and summarize recent donations so you always know who’s supporting you. - Membership management: Enable your agent to pull membership details, helping you recognize and engage with your regular supporters. - Sales and shop updates: Get notifications or updates on new sales and product transactions, keeping your creative business on track. - Supporter communication: Allow your agent to find supporter messages or comments, so you can respond quickly and keep your audience engaged. - Automated supporter analytics: Ask your agent to analyze supporter trends and activity, making it easier to understand and grow your community. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `KO_FI_PAYMENT_WEBHOOK_POST` | Receive Ko-fi payment webhook | Receives and validates Ko-fi payment webhook events. Use this to process real-time notifications for donations, subscriptions, commissions, and shop orders from Ko-fi. The webhook includes payment details, supporter information, and transaction metadata. Returns validated payment data to confirm receipt (Ko-fi expects 200 OK to prevent retries). | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Ko fi MCP server is an implementation of the Model Context Protocol that connects your AI agent to Ko fi. It provides structured and secure access so your agent can perform Ko fi 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 Before starting, make sure you have: - Python 3.9 or higher - A Composio account with an active API key - Basic familiarity with Python and async programming ### 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 Install the required libraries. What's happening: - composio connects your agent to external SaaS tools like Ko fi - pydantic-ai lets you create structured AI agents with tool support - python-dotenv loads your environment variables securely from a .env file ```bash pip install composio pydantic-ai python-dotenv ``` ### 3. Set up environment variables Create a .env file in your project root. What's happening: - COMPOSIO_API_KEY authenticates your agent to Composio's API - USER_ID associates your session with your account for secure tool access - OPENAI_API_KEY to access OpenAI LLMs ```bash COMPOSIO_API_KEY=your_composio_api_key_here USER_ID=your_user_id_here OPENAI_API_KEY=your_openai_api_key ``` ### 4. Import dependencies What's happening: - We load environment variables and import required modules - Composio manages connections to Ko fi - MCPServerStreamableHTTP connects to the Ko fi MCP server endpoint - Agent from Pydantic AI lets you define and run the AI assistant ```python import asyncio import os from dotenv import load_dotenv from composio import Composio from pydantic_ai import Agent from pydantic_ai.mcp import MCPServerStreamableHTTP load_dotenv() ``` ### 5. Create a Tool Router Session What's happening: - We're creating a Tool Router session that gives your agent access to Ko fi 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 ```python async def main(): api_key = os.getenv("COMPOSIO_API_KEY") user_id = os.getenv("USER_ID") if not api_key or not user_id: raise RuntimeError("Set COMPOSIO_API_KEY and USER_ID in your environment") # Create a Composio Tool Router session for Ko fi composio = Composio(api_key=api_key) session = composio.create( user_id=user_id, toolkits=["ko_fi"], ) url = session.mcp.url if not url: raise ValueError("Composio session did not return an MCP URL") ``` ### 6. Initialize the Pydantic AI Agent What's happening: - The MCP client connects to the Ko fi endpoint - The agent uses GPT-5 to interpret user commands and perform Ko fi operations - The instructions field defines the agent's role and behavior ```python # Attach the MCP server to a Pydantic AI Agent ko_fi_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY}) agent = Agent( "openai:gpt-5", toolsets=[ko_fi_mcp], instructions=( "You are a Ko fi assistant. Use Ko fi tools to help users " "with their requests. Ask clarifying questions when needed." ), ) ``` ### 7. Build the chat interface What's happening: - The agent reads input from the terminal and streams its response - Ko fi API calls happen automatically under the hood - The model keeps conversation history to maintain context across turns ```python # Simple REPL with message history history = [] print("Chat started! Type 'exit' or 'quit' to end.\n") print("Try asking the agent to help you with Ko fi.\n") while True: user_input = input("You: ").strip() if user_input.lower() in {"exit", "quit", "bye"}: print("\nGoodbye!") break if not user_input: continue print("\nAgent is thinking...\n", flush=True) async with agent.run_stream(user_input, message_history=history) as stream_result: collected_text = "" async for chunk in stream_result.stream_output(): text_piece = None if isinstance(chunk, str): text_piece = chunk elif hasattr(chunk, "delta") and isinstance(chunk.delta, str): text_piece = chunk.delta elif hasattr(chunk, "text"): text_piece = chunk.text if text_piece: collected_text += text_piece result = stream_result print(f"Agent: {collected_text}\n") history = result.all_messages() ``` ### 8. Run the application What's happening: - The asyncio loop launches the agent and keeps it running until you exit ```python if __name__ == "__main__": asyncio.run(main()) ``` ## Complete Code ```python import asyncio import os from dotenv import load_dotenv from composio import Composio from pydantic_ai import Agent from pydantic_ai.mcp import MCPServerStreamableHTTP load_dotenv() async def main(): api_key = os.getenv("COMPOSIO_API_KEY") user_id = os.getenv("USER_ID") if not api_key or not user_id: raise RuntimeError("Set COMPOSIO_API_KEY and USER_ID in your environment") # Create a Composio Tool Router session for Ko fi composio = Composio(api_key=api_key) session = composio.create( user_id=user_id, toolkits=["ko_fi"], ) url = session.mcp.url if not url: raise ValueError("Composio session did not return an MCP URL") # Attach the MCP server to a Pydantic AI Agent ko_fi_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY}) agent = Agent( "openai:gpt-5", toolsets=[ko_fi_mcp], instructions=( "You are a Ko fi assistant. Use Ko fi tools to help users " "with their requests. Ask clarifying questions when needed." ), ) # Simple REPL with message history history = [] print("Chat started! Type 'exit' or 'quit' to end.\n") print("Try asking the agent to help you with Ko fi.\n") while True: user_input = input("You: ").strip() if user_input.lower() in {"exit", "quit", "bye"}: print("\nGoodbye!") break if not user_input: continue print("\nAgent is thinking...\n", flush=True) async with agent.run_stream(user_input, message_history=history) as stream_result: collected_text = "" async for chunk in stream_result.stream_output(): text_piece = None if isinstance(chunk, str): text_piece = chunk elif hasattr(chunk, "delta") and isinstance(chunk.delta, str): text_piece = chunk.delta elif hasattr(chunk, "text"): text_piece = chunk.text if text_piece: collected_text += text_piece result = stream_result print(f"Agent: {collected_text}\n") history = result.all_messages() if __name__ == "__main__": asyncio.run(main()) ``` ## Conclusion You've built a Pydantic AI agent that can interact with Ko fi through Composio's Tool Router. With this setup, your agent can perform real Ko fi actions through natural language. You can extend this further by: - Adding other toolkits like Gmail, HubSpot, or Salesforce - Building a web-based chat interface around this agent - Using multiple MCP endpoints to enable cross-app workflows (for example, Gmail + Ko fi for workflow automation) This architecture makes your AI agent "agent-native", able to securely use APIs in a unified, composable way without custom integrations. ## How to build Ko fi MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/ko_fi/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/ko_fi/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/ko_fi/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/ko_fi/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/ko_fi/framework/codex) - [OpenClaw](https://composio.dev/toolkits/ko_fi/framework/openclaw) - [Hermes](https://composio.dev/toolkits/ko_fi/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/ko_fi/framework/cli) - [Google ADK](https://composio.dev/toolkits/ko_fi/framework/google-adk) - [LangChain](https://composio.dev/toolkits/ko_fi/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/ko_fi/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/ko_fi/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/ko_fi/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/ko_fi/framework/crew-ai) ## Related Toolkits - [Addresszen](https://composio.dev/toolkits/addresszen) - Addresszen is a real-time address autocomplete and verification service. It helps capture accurate, deliverable addresses with instant suggestions and validation. - [Asin data api](https://composio.dev/toolkits/asin_data_api) - Asin data api gives you detailed, real-time product data from Amazon, including price, rank, and reviews. Perfect for e-commerce pros and data-driven marketers who need instant marketplace insights. - [Baselinker](https://composio.dev/toolkits/baselinker) - BaseLinker is an all-in-one e-commerce management platform connecting stores, marketplaces, carriers, and more. It streamlines order processing, inventory control, and automates your sales operations. - [Bestbuy](https://composio.dev/toolkits/bestbuy) - Best Buy is a leading retailer offering APIs for product, store, and recommendation data. Instantly access up-to-date retail insights for smarter shopping and decision-making. - [Btcpay server](https://composio.dev/toolkits/btcpay_server) - BTCPay Server is a free, open-source, self-hosted Bitcoin payment processor. It lets merchants accept Bitcoin payments directly, cutting out middlemen and boosting privacy. - [Cdr platform](https://composio.dev/toolkits/cdr_platform) - Cdr platform is an API for purchasing carbon dioxide removal services. It enables businesses to offset emissions by accessing verified carbon removal projects. - [Cloudcart](https://composio.dev/toolkits/cloudcart) - CloudCart is an e-commerce platform for building and managing online stores. It helps businesses streamline product listings, orders, and customer engagement. - [Countdown api](https://composio.dev/toolkits/countdown_api) - Countdown API gives you real-time, structured eBay product data, reviews, and seller feedback. Perfect for powering price monitoring, product research, or marketplace analytics workflows. - [Dpd2](https://composio.dev/toolkits/dpd2) - Dpd2 is a robust email management platform for handling, sorting, and automating email workflows. 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It streamlines promotions and gift card transactions for businesses and their customers. - [Goody](https://composio.dev/toolkits/goody) - Goody is a gifting platform that lets users send gifts and physical products without handling logistics. It streamlines gifting by managing delivery, fulfillment, and recipient experience. - [Gumroad](https://composio.dev/toolkits/gumroad) - Gumroad is a platform for selling digital products, physical goods, and memberships with a simple checkout and marketing tools. It streamlines creator payouts and helps you grow your audience effortlessly. - [Instacart](https://composio.dev/toolkits/instacart) - Instacart is an online grocery delivery and pickup service platform. It lets you discover local retailers and create shoppable lists and recipes with ease. - [Junglescout](https://composio.dev/toolkits/junglescout) - Junglescout is an Amazon product research and analytics platform for sellers. It delivers sales estimates, competitive insights, and optimization tools to boost your Amazon business. - [Lemon squeezy](https://composio.dev/toolkits/lemon_squeezy) - Lemon Squeezy is a payments and subscription platform built for software companies. It makes managing payments, taxes, and customer subscriptions effortless. - [Loyverse](https://composio.dev/toolkits/loyverse) - Loyverse is a point-of-sale (POS) platform for small businesses, offering tools for sales, inventory, and customer loyalty. It helps streamline retail operations and boost customer engagement. - [Memberstack](https://composio.dev/toolkits/memberstack) - 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. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Ko fi MCP? With a standalone Ko fi MCP server, the agents and LLMs can only access a fixed set of Ko fi tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Ko fi and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Pydantic AI? Yes, you can. Pydantic AI 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 Ko fi tools. ### Can I manage the permissions and scopes for Ko fi while using Tool Router? Yes, absolutely. You can configure which Ko fi 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 Ko fi data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)