# How to integrate Files com MCP with Mastra AI ```json { "title": "How to integrate Files com MCP with Mastra AI", "toolkit": "Files com", "toolkit_slug": "files_com", "framework": "Mastra AI", "framework_slug": "mastra-ai", "url": "https://composio.dev/toolkits/files_com/framework/mastra-ai", "markdown_url": "https://composio.dev/toolkits/files_com/framework/mastra-ai.md", "updated_at": "2026-05-12T10:11:22.531Z" } ``` ## Introduction This guide walks you through connecting Files com to Mastra AI using the Composio tool router. By the end, you'll have a working Files com agent that can list all folders under your documents directory, show current permissions for a specific file, delete a share link to revoke access through natural language commands. This guide will help you understand how to give your Mastra AI agent real control over a Files com account through Composio's Files com MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved. ## Also integrate Files com with - [OpenAI Agents SDK](https://composio.dev/toolkits/files_com/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/files_com/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/files_com/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/files_com/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/files_com/framework/codex) - [OpenClaw](https://composio.dev/toolkits/files_com/framework/openclaw) - [Hermes](https://composio.dev/toolkits/files_com/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/files_com/framework/cli) - [Google ADK](https://composio.dev/toolkits/files_com/framework/google-adk) - [LangChain](https://composio.dev/toolkits/files_com/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/files_com/framework/ai-sdk) - [LlamaIndex](https://composio.dev/toolkits/files_com/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/files_com/framework/crew-ai) ## TL;DR Here's what you'll learn: - Set up your environment so Mastra, OpenAI, and Composio work together - Create a Tool Router session in Composio that exposes Files com tools - Connect Mastra's MCP client to the Composio generated MCP URL - Fetch Files com tool definitions and attach them as a toolset - Build a Mastra agent that can reason, call tools, and return structured results - Run an interactive CLI where you can chat with your Files com agent ## What is Mastra AI? Mastra AI is a TypeScript framework for building AI agents with tool support. It provides a clean API for creating agents that can use external services through MCP. Key features include: - MCP Client: Built-in support for Model Context Protocol servers - Toolsets: Organize tools into logical groups - Step Callbacks: Monitor and debug agent execution - OpenAI Integration: Works with OpenAI models via @ai-sdk/openai ## What is the Files com MCP server, and what's possible with it? The Files.com MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Files.com account. It provides structured and secure access to your cloud storage and file management resources, so your agent can perform actions like listing folders, managing permissions, generating upload keys, and handling file shares on your behalf. - Folder navigation and organization: Ask your agent to list and explore folders within your Files.com account, making it easy to locate and organize files. - Permission management: Allow the agent to retrieve, review, and delete access permissions for files or folders, keeping your data secure and access controlled. - Secure file uploading: Have your agent generate S3 upload keys so you can temporarily host files for easy import, sharing, or collaboration across teams. - Group and share link management: Let your agent list user groups or delete share links to efficiently manage who has access to important documents and shared resources. - API key lifecycle control: Instruct your agent to revoke API keys when needed, ensuring only authorized integrations remain active for your account. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `FILES_COM_DELETE_API_KEY` | Delete API Key | Tool to delete an API key. Use when you need to revoke an API key after confirming its identifier. | | `FILES_COM_DELETE_PERMISSION` | Delete Permission | Removes a permission grant that allows a user or group to access a specific file or folder path on Files.com. A permission ID can be obtained from the LIST_PERMISSIONS action. Use this tool when you need to revoke access that was previously granted to a user or group for a specific resource. Note: Requires administrative permissions on the Files.com site. | | `FILES_COM_DELETE_SHARE` | Delete Share | Delete a specified share link (bundle) on Files.com. This operation is idempotent - it succeeds even if the share link has already been deleted or doesn't exist. Use this to revoke public access to shared files/folders when you have the share ID. | | `FILES_COM_GET_S3_KEY_FOR_UPLOAD` | Get S3 Key for Upload | Tool to generate a temporary key for file uploads by uploading the file to Files.com. Useful when you need to host a local file temporarily before importing or sharing. | | `FILES_COM_LIST_FOLDERS` | List Folders | Lists folders in Files.com with optional filtering, sorting, and pagination. Returns a paginated list of folders with metadata. Useful for browsing folder structure, finding specific folders by name, or retrieving folders under a specific parent. | | `FILES_COM_LIST_GROUPS` | List Groups | Retrieves a paginated list of all groups from Files.com. Groups are used to organize users and manage permissions collectively. Use this action to discover available groups, check group membership, or before performing group-based permission operations. Returns group details including IDs, names, member lists, and access permissions (FTP, SFTP, WebDAV, REST API). | | `FILES_COM_LIST_PERMISSIONS` | List Permissions | Retrieve permissions for a specified path on Files.com. Use when you need to inspect who has access and what level for a given file or folder path. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Files com MCP server is an implementation of the Model Context Protocol that connects your AI agent to Files com. It provides structured and secure access so your agent can perform Files com 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: - Node.js 18 or higher - A Composio account with an active API key - An OpenAI API key - Basic familiarity with TypeScript ### 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 need credits or a connected billing setup to use the models. - Store the key somewhere safe. Composio API Key - Log in to the [Composio dashboard](https://dashboard.composio.dev?utm_source=toolkits&utm_medium=framework_docs). - Go to Settings and copy your API key. - This key lets your Mastra agent talk to Composio and reach Files com through MCP. ### 2. Install dependencies Install the required packages. What's happening: - @composio/core is the Composio SDK for creating MCP sessions - @mastra/core provides the Agent class - @mastra/mcp is Mastra's MCP client - @ai-sdk/openai is the model wrapper for OpenAI - dotenv loads environment variables from .env ```bash npm install @composio/core @mastra/core @mastra/mcp @ai-sdk/openai 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 - COMPOSIO_USER_ID tells Composio which user this session belongs to - OPENAI_API_KEY lets the Mastra agent call OpenAI models ```bash COMPOSIO_API_KEY=your_composio_api_key_here COMPOSIO_USER_ID=your_user_id_here OPENAI_API_KEY=your_openai_api_key_here ``` ### 4. Import libraries and validate environment What's happening: - dotenv/config auto loads your .env so process.env.* is available - openai gives you a Mastra compatible model wrapper - Agent is the Mastra agent that will call tools and produce answers - MCPClient connects Mastra to your Composio MCP server - Composio is used to create a Tool Router session ```typescript import "dotenv/config"; import { openai } from "@ai-sdk/openai"; import { Agent } from "@mastra/core/agent"; import { MCPClient } from "@mastra/mcp"; import { Composio } from "@composio/core"; import * as readline from "readline"; import type { AiMessageType } from "@mastra/core/agent"; const openaiAPIKey = process.env.OPENAI_API_KEY; const composioAPIKey = process.env.COMPOSIO_API_KEY; const composioUserID = process.env.COMPOSIO_USER_ID; if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set"); if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set"); if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set"); const composio = new Composio({ apiKey: composioAPIKey as string, }); ``` ### 5. Create a Tool Router session for Files com What's happening: - create spins up a short-lived MCP HTTP endpoint for this user - The toolkits array contains "files_com" for Files com access - session.mcp.url is the MCP URL that Mastra's MCPClient will connect to ```typescript async function main() { const session = await composio.create( composioUserID as string, { toolkits: ["files_com"], }, ); const composioMCPUrl = session.mcp.url; console.log("Files com MCP URL:", composioMCPUrl); ``` ### 6. Configure Mastra MCP client and fetch tools What's happening: - MCPClient takes an id for this client and a list of MCP servers - The headers property includes the x-api-key for authentication - getTools fetches the tool definitions exposed by the Files com toolkit ```typescript const mcpClient = new MCPClient({ id: composioUserID as string, servers: { nasdaq: { url: new URL(composioMCPUrl), requestInit: { headers: session.mcp.headers, }, }, }, timeout: 30_000, }); console.log("Fetching MCP tools from Composio..."); const composioTools = await mcpClient.getTools(); console.log("Number of tools:", Object.keys(composioTools).length); ``` ### 7. Create the Mastra agent What's happening: - Agent is the core Mastra agent - name is just an identifier for logging and debugging - instructions guide the agent to use tools instead of only answering in natural language - model uses openai("gpt-5") to configure the underlying LLM ```typescript const agent = new Agent({ name: "files_com-mastra-agent", instructions: "You are an AI agent with Files com tools via Composio.", model: "openai/gpt-5", }); ``` ### 8. Set up interactive chat interface What's happening: - messages keeps the full conversation history in Mastra's expected format - agent.generate runs the agent with conversation history and Files com toolsets - maxSteps limits how many tool calls the agent can take in a single run - onStepFinish is a hook that prints intermediate steps for debugging ```typescript let messages: AiMessageType[] = []; console.log("Chat started! Type 'exit' or 'quit' to end.\n"); const rl = readline.createInterface({ input: process.stdin, output: process.stdout, prompt: "> ", }); 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; } messages.push({ id: crypto.randomUUID(), role: "user", content: trimmedInput, }); console.log("\nAgent is thinking...\n"); try { const response = await agent.generate(messages, { toolsets: { files_com: composioTools, }, maxSteps: 8, }); const { text } = response; if (text && text.trim().length > 0) { console.log(`Agent: ${text}\n`); messages.push({ id: crypto.randomUUID(), role: "assistant", content: text, }); } } catch (error) { console.error("\nError:", error); } rl.prompt(); }); rl.on("close", async () => { console.log("\nSession ended."); await mcpClient.disconnect(); process.exit(0); }); } main().catch((err) => { console.error("Fatal error:", err); process.exit(1); }); ``` ## Complete Code ```typescript import "dotenv/config"; import { openai } from "@ai-sdk/openai"; import { Agent } from "@mastra/core/agent"; import { MCPClient } from "@mastra/mcp"; import { Composio } from "@composio/core"; import * as readline from "readline"; import type { AiMessageType } from "@mastra/core/agent"; const openaiAPIKey = process.env.OPENAI_API_KEY; const composioAPIKey = process.env.COMPOSIO_API_KEY; const composioUserID = process.env.COMPOSIO_USER_ID; if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set"); if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set"); if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set"); const composio = new Composio({ apiKey: composioAPIKey as string }); async function main() { const session = await composio.create(composioUserID as string, { toolkits: ["files_com"], }); const composioMCPUrl = session.mcp.url; const mcpClient = new MCPClient({ id: composioUserID as string, servers: { files_com: { url: new URL(composioMCPUrl), requestInit: { headers: session.mcp.headers, }, }, }, timeout: 30_000, }); const composioTools = await mcpClient.getTools(); const agent = new Agent({ name: "files_com-mastra-agent", instructions: "You are an AI agent with Files com tools via Composio.", model: "openai/gpt-5", }); let messages: AiMessageType[] = []; const rl = readline.createInterface({ input: process.stdin, output: process.stdout, prompt: "> ", }); rl.prompt(); rl.on("line", async (input: string) => { const trimmed = input.trim(); if (["exit", "quit"].includes(trimmed.toLowerCase())) { rl.close(); return; } messages.push({ id: crypto.randomUUID(), role: "user", content: trimmed }); const { text } = await agent.generate(messages, { toolsets: { files_com: composioTools }, maxSteps: 8, }); if (text) { console.log(`Agent: ${text}\n`); messages.push({ id: crypto.randomUUID(), role: "assistant", content: text }); } rl.prompt(); }); rl.on("close", async () => { await mcpClient.disconnect(); process.exit(0); }); } main(); ``` ## Conclusion You've built a Mastra AI agent that can interact with Files com through Composio's Tool Router. You can extend this further by: - Adding other toolkits like Gmail, Slack, or GitHub - Building a web-based chat interface around this agent - Using multiple MCP endpoints to enable cross-app workflows ## How to build Files com MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/files_com/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/files_com/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/files_com/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/files_com/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/files_com/framework/codex) - [OpenClaw](https://composio.dev/toolkits/files_com/framework/openclaw) - [Hermes](https://composio.dev/toolkits/files_com/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/files_com/framework/cli) - [Google ADK](https://composio.dev/toolkits/files_com/framework/google-adk) - [LangChain](https://composio.dev/toolkits/files_com/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/files_com/framework/ai-sdk) - [LlamaIndex](https://composio.dev/toolkits/files_com/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/files_com/framework/crew-ai) ## Related Toolkits - [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. - [Google Docs](https://composio.dev/toolkits/googledocs) - Google Docs is a cloud-based word processor that enables document creation and real-time collaboration. Its seamless sharing and version history make team editing and content management a breeze. - [Google Super](https://composio.dev/toolkits/googlesuper) - Google Super is an all-in-one suite combining Gmail, Drive, Calendar, Sheets, Analytics, and more. It gives you a unified platform to manage your digital life, boosting productivity and organization. - [Affinda](https://composio.dev/toolkits/affinda) - Affinda is an AI-powered document processing platform that automates data extraction from resumes, invoices, and more. It streamlines document-heavy workflows by turning files into structured, actionable data. - [Agility cms](https://composio.dev/toolkits/agility_cms) - Agility CMS is a headless content management system for building and managing digital experiences across platforms. It lets teams update content quickly and deliver omnichannel experiences with ease. - [Algodocs](https://composio.dev/toolkits/algodocs) - Algodocs is an AI-powered platform that automates data extraction from business documents. It delivers fast, secure, and accurate processing without templates or manual training. - [Api2pdf](https://composio.dev/toolkits/api2pdf) - Api2Pdf is a REST API for generating PDFs from HTML, URLs, and documents using powerful engines like wkhtmltopdf and Headless Chrome. It streamlines document conversion and automation for developers and businesses. - [Aryn](https://composio.dev/toolkits/aryn) - Aryn is an AI-powered platform for parsing, extracting, and analyzing data from unstructured documents. Use it to automate document processing and unlock actionable insights from your files. - [Boldsign](https://composio.dev/toolkits/boldsign) - Boldsign is a digital eSignature platform for sending, signing, and tracking documents online. Organizations use it to automate agreements and manage legally binding workflows efficiently. - [Boloforms](https://composio.dev/toolkits/boloforms) - BoloForms is an eSignature platform built for small businesses, offering unlimited signatures, templates, and forms. It simplifies digital document signing and team collaboration at a predictable, fixed price. - [Box](https://composio.dev/toolkits/box) - Box is a cloud content management and file sharing platform for businesses. It helps teams securely store, organize, and collaborate on files from anywhere. - [Carbone](https://composio.dev/toolkits/carbone) - Carbone is a blazing-fast report generator that turns JSON data into PDFs, Word docs, spreadsheets, and more using flexible templates. It lets you automate document creation at scale with minimal code. - [Castingwords](https://composio.dev/toolkits/castingwords) - CastingWords is a transcription service specializing in human-powered, accurate transcripts via a simple API. Get seamless audio-to-text conversion for interviews, meetings, podcasts, and more. - [Cloudconvert](https://composio.dev/toolkits/cloudconvert) - CloudConvert is a powerful file conversion service supporting over 200 file formats. It streamlines converting, compressing, and managing documents, media, and more, all in one place. - [Cloudlayer](https://composio.dev/toolkits/cloudlayer) - Cloudlayer is a document and asset generation service for creating PDFs and images via API or SDKs. It lets you automate high-quality doc creation, saving dev time and reducing manual work. - [Cloudpress](https://composio.dev/toolkits/cloudpress) - Cloudpress is a content export tool for Google Docs and Notion. It automates publishing to your favorite Content Management Systems. - [Contentful graphql](https://composio.dev/toolkits/contentful_graphql) - Contentful graphql is a content delivery API that lets you access Contentful data using GraphQL queries. It gives you efficient, flexible ways to fetch and manage structured content for any digital project. - [Conversion tools](https://composio.dev/toolkits/conversion_tools) - Conversion Tools is an online service for converting documents between formats such as PDF, Word, Excel, XML, and CSV. It lets you automate complex document workflows with just a few clicks. - [Convertapi](https://composio.dev/toolkits/convertapi) - ConvertAPI is a robust file conversion service for documents, images, and spreadsheets. It streamlines programmatic format changes and lets developers automate complex workflows with a single API. - [Craftmypdf](https://composio.dev/toolkits/craftmypdf) - CraftMyPDF is a web-based service for designing and generating PDFs with templates and live data. It streamlines document creation by automating personalized PDFs at scale. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Files com MCP? With a standalone Files com MCP server, the agents and LLMs can only access a fixed set of Files com tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Files com and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Mastra AI? Yes, you can. Mastra 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 Files com tools. ### Can I manage the permissions and scopes for Files com while using Tool Router? Yes, absolutely. You can configure which Files com 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 Files com 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)