# How to integrate Codemagic MCP with Pydantic AI ```json { "title": "How to integrate Codemagic MCP with Pydantic AI", "toolkit": "Codemagic", "toolkit_slug": "codemagic", "framework": "Pydantic AI", "framework_slug": "pydantic-ai", "url": "https://composio.dev/toolkits/codemagic/framework/pydantic-ai", "markdown_url": "https://composio.dev/toolkits/codemagic/framework/pydantic-ai.md", "updated_at": "2026-03-29T06:28:08.393Z" } ``` ## Introduction This guide walks you through connecting Codemagic to Pydantic AI using the Composio tool router. By the end, you'll have a working Codemagic agent that can trigger a new build for ios app, show recent build status for android app, download latest build artifact for project through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Codemagic account through Composio's Codemagic MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved. ## Also integrate Codemagic with - [OpenAI Agents SDK](https://composio.dev/toolkits/codemagic/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/codemagic/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/codemagic/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/codemagic/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/codemagic/framework/codex) - [OpenClaw](https://composio.dev/toolkits/codemagic/framework/openclaw) - [Hermes](https://composio.dev/toolkits/codemagic/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/codemagic/framework/cli) - [Google ADK](https://composio.dev/toolkits/codemagic/framework/google-adk) - [LangChain](https://composio.dev/toolkits/codemagic/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/codemagic/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/codemagic/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/codemagic/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/codemagic/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 Codemagic - 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 Codemagic 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 Codemagic MCP server, and what's possible with it? The Codemagic MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Codemagic account. It provides structured and secure access so your agent can perform Codemagic operations on your behalf. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `CODEMAGIC_ADD_APPLICATION_FROM_PRIVATE_REPO` | Add Application from Private Repository | Tool to create an application from a private repository using SSH key authentication. Use when you need to add a new private repository to Codemagic with SSH credentials. | | `CODEMAGIC_ADD_NEW_APPLICATION` | Add New Application | Tool to add a Git repository to the applications list in Codemagic. Use when you need to add a new application to Codemagic from a repository URL. | | `CODEMAGIC_API_V3_META_GET_META` | Get Meta Information | Tool to get metadata about Codemagic including public IP addresses in use (in CIDR notation). Use when you need to retrieve IP blocks for whitelisting build machines or simulator network requests. | | `CODEMAGIC_API_V3_VARIABLE_GROUPS_VARIABLE_GROUP_ID_GET_GROUP` | Get Variable Group Information | Tool to retrieve information about a specific variable group including its name and configuration settings. Use when you need to get details for a variable group by its ID. | | `CODEMAGIC_UPDATE_VARIABLE_GROUP` | Update Variable Group | Tool to change a variable group's name and security settings. Use when you need to update an existing variable group by its ID. Returns success confirmation on 204 No Content response. | | `CODEMAGIC_DELETE_ALL_APPLICATION_CACHES` | Delete All Application Caches | Tool to delete all caches for a specific application. Use when clearing all cached data for an app. The deletion process is asynchronous and will complete after the API response is returned. | | `CODEMAGIC_DELETE_SPECIFIC_CACHE` | Delete Specific Cache | Tool to delete a specific cache from an application. Use when a cached build artifact needs to be removed. The deletion is performed asynchronously and returns immediately with a 202 Accepted status. | | `CODEMAGIC_GET_ACCOUNT_INFO_FOR_OVER_THE_AIR_UPDATES` | Get Account Info for Over-the-Air Updates | Tool to retrieve account information for over-the-air updates. Use when you need to check the account status (enabled/disabled/pending) and associated team identifier. | | `CODEMAGIC_GET_ALL_BUILDS` | Get All Builds | Tool to list all builds with optional filters for appId, workflowId, and branch. Use when you need to retrieve build history or search for specific builds. Supports pagination via the skip parameter. | | `CODEMAGIC_GET_API_KEY` | Get API Key | Tool to retrieve the API key for the authenticated user. Use when you need to fetch the API key associated with the current authentication token. | | `CODEMAGIC_GET_AUTHENTICATED_USER` | Get Authenticated User | Tool to retrieve information about the currently authenticated user. Use when you need to get user ID, avatar URL, or check user permissions. | | `CODEMAGIC_LIST_VARIABLE_GROUPS_FOR_APP` | List Variable Groups for App | Tool to retrieve paginated list of variable groups for an application. Use when you need to list or browse variable groups associated with a specific app. | | `CODEMAGIC_LIST_VARIABLES_FOR_GROUP` | List Variables for Group | Tool to retrieve paginated list of variables for a specific variable group. Use when you need to list or browse environment variables within a variable group. | | `CODEMAGIC_INVITE_TEAM_MEMBER` | Invite Team Member | Tool to invite a new team member to a Codemagic team. Use when you need to grant team access to a user. Requires team admin privileges. The 'developer' role corresponds to Member role and 'owner' role corresponds to Admin role in Codemagic UI. | | `CODEMAGIC_LIST_TEAM_APPS` | List Team Apps | Tool to list all apps for a specific team in Codemagic. Use when you need to browse or retrieve team application information. Supports pagination via page and page_size parameters. | | `CODEMAGIC_RECEIVE_WEBHOOK` | Receive Webhook | Tool to receive webhook payloads from Git providers to trigger builds automatically. Use when repository events (commits, pull requests, tags) need to trigger Codemagic builds programmatically. | | `CODEMAGIC_REMOVE_TEAM_MEMBER` | Remove Team Member | Tool to remove a collaborator from a Codemagic team. Use when you need to revoke team access for a specific user. The removal is performed asynchronously and returns immediately with a 202 Accepted status. | | `CODEMAGIC_RETRIEVE_ALL_APPLICATIONS` | Retrieve All Applications | Tool to retrieve all applications added to Codemagic. Use when you need to list or browse all applications in the Codemagic account. | | `CODEMAGIC_RETRIEVE_AN_APPLICATION` | Retrieve an Application | Tool to retrieve a single application by its unique identifier. Use when you need to get application details including name, branches, and workflow configuration. | | `CODEMAGIC_RETRIEVE_CACHES_FOR_APPLICATION` | Retrieve Caches for Application | Tool to retrieve a list of caches for a specific application. Use when you need to view cached data, check cache sizes, or manage application storage. | | `CODEMAGIC_START_NEW_BUILD` | Start New Build | Tool to start a new build for an application with specified workflow and branch or tag. Use when you need to trigger a build programmatically. Either branch or tag parameter must be provided. | | `CODEMAGIC_STOP_PREVIEW` | Stop Preview | Tool to stop an app preview. Use when you need to stop a running app preview by its identifier. | | `CODEMAGIC_UPDATE_VARIABLE_IN_GROUP` | Update Variable in Group | Tool to update an existing variable within a specified variable group in Codemagic. Use when you need to modify a variable's name, value, or secure status. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Codemagic MCP server is an implementation of the Model Context Protocol that connects your AI agent to Codemagic. It provides structured and secure access so your agent can perform Codemagic 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 Codemagic - 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 Codemagic - MCPServerStreamableHTTP connects to the Codemagic 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 Codemagic 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 Codemagic composio = Composio(api_key=api_key) session = composio.create( user_id=user_id, toolkits=["codemagic"], ) 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 Codemagic endpoint - The agent uses GPT-5 to interpret user commands and perform Codemagic operations - The instructions field defines the agent's role and behavior ```python # Attach the MCP server to a Pydantic AI Agent codemagic_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY}) agent = Agent( "openai:gpt-5", toolsets=[codemagic_mcp], instructions=( "You are a Codemagic assistant. Use Codemagic 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 - Codemagic 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 Codemagic.\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 Codemagic composio = Composio(api_key=api_key) session = composio.create( user_id=user_id, toolkits=["codemagic"], ) 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 codemagic_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY}) agent = Agent( "openai:gpt-5", toolsets=[codemagic_mcp], instructions=( "You are a Codemagic assistant. Use Codemagic 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 Codemagic.\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 Codemagic through Composio's Tool Router. With this setup, your agent can perform real Codemagic 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 + Codemagic 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 Codemagic MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/codemagic/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/codemagic/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/codemagic/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/codemagic/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/codemagic/framework/codex) - [OpenClaw](https://composio.dev/toolkits/codemagic/framework/openclaw) - [Hermes](https://composio.dev/toolkits/codemagic/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/codemagic/framework/cli) - [Google ADK](https://composio.dev/toolkits/codemagic/framework/google-adk) - [LangChain](https://composio.dev/toolkits/codemagic/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/codemagic/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/codemagic/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/codemagic/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/codemagic/framework/crew-ai) ## Related Toolkits - [Supabase](https://composio.dev/toolkits/supabase) - Supabase is an open-source backend platform offering scalable Postgres databases, authentication, storage, and real-time APIs. It lets developers build modern apps without managing infrastructure. - [Codeinterpreter](https://composio.dev/toolkits/codeinterpreter) - Codeinterpreter is a Python-based coding environment with built-in data analysis and visualization. It lets you instantly run scripts, plot results, and prototype solutions inside supported platforms. - [GitHub](https://composio.dev/toolkits/github) - GitHub is a code hosting platform for version control and collaborative software development. It streamlines project management, code review, and team workflows in one place. - [Ably](https://composio.dev/toolkits/ably) - Ably is a real-time messaging platform for live chat and data sync in modern apps. It offers global scale and rock-solid reliability for seamless, instant experiences. - [Abuselpdb](https://composio.dev/toolkits/abuselpdb) - Abuselpdb is a central database for reporting and checking IPs linked to malicious online activity. Use it to quickly identify and report suspicious or abusive IP addresses. - [Alchemy](https://composio.dev/toolkits/alchemy) - Alchemy is a blockchain development platform offering APIs and tools for Ethereum apps. It simplifies building and scaling Web3 projects with robust infrastructure. - [Algolia](https://composio.dev/toolkits/algolia) - Algolia is a hosted search API that powers lightning-fast, relevant search experiences for web and mobile apps. It helps developers deliver instant, typo-tolerant, and scalable search without complex infrastructure. - [Anchor browser](https://composio.dev/toolkits/anchor_browser) - Anchor browser is a developer platform for AI-powered web automation. It transforms complex browser actions into easy API endpoints for streamlined web interaction. - [Apiflash](https://composio.dev/toolkits/apiflash) - Apiflash is a website screenshot API for programmatically capturing web pages. It delivers high-quality screenshots on demand for automation, monitoring, or reporting. - [Apiverve](https://composio.dev/toolkits/apiverve) - Apiverve delivers a suite of powerful APIs that simplify integration for developers. It's designed for reliability and scalability so you can build faster, smarter applications without the integration headache. - [Appcircle](https://composio.dev/toolkits/appcircle) - Appcircle is an enterprise-grade mobile CI/CD platform for building, testing, and publishing mobile apps. It streamlines mobile DevOps so teams ship faster and with more confidence. - [Appdrag](https://composio.dev/toolkits/appdrag) - Appdrag is a cloud platform for building websites, APIs, and databases with drag-and-drop tools and code editing. It accelerates development and iteration by combining hosting, database management, and low-code features in one place. - [Appveyor](https://composio.dev/toolkits/appveyor) - AppVeyor is a cloud-based continuous integration service for building, testing, and deploying applications. It helps developers automate and streamline their software delivery pipelines. - [Backendless](https://composio.dev/toolkits/backendless) - Backendless is a backend-as-a-service platform for mobile and web apps, offering database, file storage, user authentication, and APIs. It helps developers ship scalable applications faster without managing server infrastructure. - [Baserow](https://composio.dev/toolkits/baserow) - Baserow is an open-source no-code database platform for building collaborative data apps. It makes it easy for teams to organize data and automate workflows without writing code. - [Bench](https://composio.dev/toolkits/bench) - Bench is a benchmarking tool for automated performance measurement and analysis. It helps you quickly evaluate, compare, and track your systems or workflows. - [Better stack](https://composio.dev/toolkits/better_stack) - Better Stack is a monitoring, logging, and incident management solution for apps and services. It helps teams ensure application reliability and performance with real-time insights. - [Bitbucket](https://composio.dev/toolkits/bitbucket) - Bitbucket is a Git-based code hosting and collaboration platform for teams. It enables secure repository management and streamlined code reviews. - [Blazemeter](https://composio.dev/toolkits/blazemeter) - Blazemeter is a continuous testing platform for web and mobile app performance. It empowers teams to automate and analyze large-scale tests with ease. - [Blocknative](https://composio.dev/toolkits/blocknative) - Blocknative delivers real-time mempool monitoring and transaction management for public blockchains. Instantly track pending transactions and optimize blockchain interactions with live data. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Codemagic MCP? With a standalone Codemagic MCP server, the agents and LLMs can only access a fixed set of Codemagic tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Codemagic 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 Codemagic tools. ### Can I manage the permissions and scopes for Codemagic while using Tool Router? Yes, absolutely. You can configure which Codemagic 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 Codemagic data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) ยท [Composio docs](https://docs.composio.dev/llms.txt)