# How to connect Modem MCP with ChatGPT ```json { "title": "How to connect Modem MCP with ChatGPT", "toolkit": "Modem MCP", "toolkit_slug": "modem_mcp", "framework": "ChatGPT", "framework_slug": "chatgpt", "url": "https://composio.dev/toolkits/modem_mcp/framework/chatgpt", "markdown_url": "https://composio.dev/toolkits/modem_mcp/framework/chatgpt.md", "updated_at": "2026-09-24T15:54:58.576Z" } ``` ## Introduction ### How to connect Modem MCP with ChatGPT [ChatGPT](https://chatgpt.com/) can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers. In this guide, I will explain the easiest and most secure way to connect your Modem account to ChatGPT via Composio Connect, so it can search synthesized feedback, run durable Modem Agent conversations, create and manage topics, and manage people and companies through natural language commands without ever putting your account credentials at risk. ## Also integrate Modem MCP with - [Claude Cowork](https://composio.dev/toolkits/modem_mcp/framework/claude-cowork) - [Hermes](https://composio.dev/toolkits/modem_mcp/framework/hermes-agent) - [Atomic Agent](https://composio.dev/toolkits/modem_mcp/framework/atomic-agent) ## TL;DR ### Why use Composio over default connectors? - Apps with read and write access. Default connectors mostly can read your data. Composio's Modem integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more. - 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce. - One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app. - Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand. - Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation. ## Connect Modem MCP to ChatGPT ### Prerequisites - A ChatGPT account. We will use the [ChatGPT desktop app](https://openai.com/chatgpt/download/), and the steps are the same on the web. - Access to the Modem workspace you want to connect. - [Composio plugin](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=chatgpt&utm_content=composio_connect&next=%2F~%2Forg%2Fconnect%2Fclients%2Fchatgpt). Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account. ### Step-by-step: Connect Modem to ChatGPT ### 1. Install the Composio plugin Click the button. ChatGPT opens the Composio plugin page. Click Install plugin. [Install in ChatGPT](https://chatgpt.com/plugins/plugin_asdk_app_6a58503580c08191b78cc5bdaf4eba6e) You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin. ### 2. Authenticate After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account. ### 3. Start using Composio That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread Modem messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize Modem. ### Option 2: Add Composio as an MCP server If you cannot use the plugin marketplace, add Composio as a custom MCP server instead. ### 1. Open the MCP settings In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab. ### 2. Add the server Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL: ```bash https://connect.composio.dev/mcp ``` ## What is the Modem MCP server, and what's possible with it? The Modem MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Modem account. It provides structured and secure access so your agent can perform Modem operations on your behalf. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `MODEM_MCP_ADD_PEOPLE_TO_COMPANY` | Add people to company | Associate one or more people with a company. Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | | `MODEM_MCP_BULK_UPDATE_TOPICS` | Bulk update topics | Update multiple topics at once (e.g. archive or re-prioritize a set of topics). Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | | `MODEM_MCP_CREATE_COMPANIES` | Create companies | Create one or more companies in the organization. Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | | `MODEM_MCP_MERGE_COMPANIES` | Merge companies | Merge one or more source companies into a target company. Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | | `MODEM_MCP_MERGE_PEOPLE` | Merge people | Merge one or more source people into a target person. Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | | `MODEM_MCP_MERGE_TOPICS` | Merge topics | Merge one or more source topics into a target topic. Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | | `MODEM_MCP_MODEM_AGENT_CANCEL_RUN` | Modem agent cancel run | Cooperatively cancel one exact durable Modem agent run. Completed external actions are not reversed. | | `MODEM_MCP_MODEM_AGENT_GET_RUN` | Modem agent get run | Get the current status and terminal result of a durable Modem agent run. | | `MODEM_MCP_MODEM_AGENT_INVOKE` | Modem agent invoke | Start a durable Modem agent conversation. Returns immediately with conversation_id and run_id; poll modem_agent_get_run for the result. Before your first call, read the skill: `modem_skills({ name: "agent-runs" })`. | | `MODEM_MCP_MODEM_AGENT_SEND_MESSAGE` | Modem agent send message | Start a durable follow-up turn in an existing MCP conversation. | | `MODEM_MCP_MODEM_SKILLS` | Modem skills | Skills that teach you how to use THIS Modem MCP server's tools. Call before your first `search_modem`, `modem_agent_invoke`, or write-tool call, or when unsure which Modem tool to use. Pass `name` for the full skill, one of `search-modem`, `agent-runs`, `write-tools`. Omit `name` to list them with descriptions. This is not the Skills page in dashboard settings. | | `MODEM_MCP_SEARCH_MODEM` | Search modem | Answer a natural-language question about your Modem data and get matching rows back. Read-only. It does not run the full Modem agent or spend agent credits. Send a `question`, or send only the `cursor` from a previous result to fetch its next page. Topic `priority` in the rows is an integer: very_low (-100), low (-50), default (0), high (50), very_high (100). Before your first call, read the skill: `modem_skills({ name: "search-modem" })`. | | `MODEM_MCP_UPDATE_COMPANIES` | Update companies | Update fields on one or more existing companies. Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | | `MODEM_MCP_UPDATE_PEOPLE` | Update people | Update fields on one or more existing people. Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | | `MODEM_MCP_UPDATE_TOPIC` | Update topic | Update a single topic (priority, lifecycle state, archived status, issue type, or keywords). Before your first call, read the skill: `modem_skills({ name: "write-tools" })`. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK Once connected, ChatGPT can access the Modem MCP server via Composio to run actions that you authorize, directly in your workspace. ## Complete Code None listed. ## How to build Modem MCP Agent with another framework - [Claude Cowork](https://composio.dev/toolkits/modem_mcp/framework/claude-cowork) - [Hermes](https://composio.dev/toolkits/modem_mcp/framework/hermes-agent) - [Atomic Agent](https://composio.dev/toolkits/modem_mcp/framework/atomic-agent) ## Related Toolkits - [Google Sheets](https://composio.dev/toolkits/googlesheets) - Google Sheets is a cloud-based spreadsheet tool for real-time collaboration and data analysis. It lets teams work together from anywhere, updating information instantly. - [Notion](https://composio.dev/toolkits/notion) - Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place. - [Airtable](https://composio.dev/toolkits/airtable) - Airtable combines the flexibility of spreadsheets with the power of a database for easy project and data management. Teams use Airtable to organize, track, and collaborate with custom views and automations. - [Asana](https://composio.dev/toolkits/asana) - Asana is a collaborative work management platform for teams to organize and track projects. It streamlines teamwork, boosts productivity, and keeps everyone aligned on goals. - [Google Tasks](https://composio.dev/toolkits/googletasks) - Google Tasks is a to-do list and task management tool integrated into Gmail and Google Calendar. It helps you organize, track, and complete tasks across your Google ecosystem. - [Linear](https://composio.dev/toolkits/linear) - Linear is a modern issue tracking and project planning tool for fast-moving teams. It helps streamline workflows, organize projects, and boost productivity. - [Firecrawl](https://composio.dev/toolkits/firecrawl) - Firecrawl automates large-scale web crawling and data extraction. It helps organizations efficiently gather, index, and analyze content from online sources. - [Tavily](https://composio.dev/toolkits/tavily) - Tavily offers powerful search and data retrieval from documents, databases, and the web. It helps teams locate and filter information instantly, saving hours on research. - [Jira](https://composio.dev/toolkits/jira) - Jira is Atlassian’s platform for bug tracking, issue tracking, and agile project management. It helps teams organize work, prioritize tasks, and deliver projects efficiently. - [Exa](https://composio.dev/toolkits/exa) - Exa is a data extraction and search platform for gathering and analyzing information from websites, APIs, or databases. It helps teams quickly surface insights and automate data-driven workflows. - [Serpapi](https://composio.dev/toolkits/serpapi) - SerpApi is a real-time API for structured search engine results. It lets you automate SERP data collection, parsing, and analysis for SEO and research. - [Clickup](https://composio.dev/toolkits/clickup) - ClickUp is an all-in-one productivity platform for managing tasks, docs, goals, and team collaboration. It streamlines project workflows so teams can work smarter and stay organized in one place. - [Monday](https://composio.dev/toolkits/monday) - Monday.com is a customizable work management platform for project planning and collaboration. It helps teams organize tasks, automate workflows, and track progress in real time. - [Peopledatalabs](https://composio.dev/toolkits/peopledatalabs) - Peopledatalabs delivers B2B data enrichment and identity resolution APIs. Supercharge your apps with accurate, up-to-date business and contact data. - [Snowflake](https://composio.dev/toolkits/snowflake) - Snowflake is a cloud data warehouse built for elastic scaling, secure data sharing, and fast SQL analytics across major clouds. - [Posthog](https://composio.dev/toolkits/posthog) - PostHog is an open-source analytics platform for tracking user interactions and product metrics. It helps teams refine features, analyze funnels, and reduce churn with actionable insights. - [Addressfinder](https://composio.dev/toolkits/addressfinder) - Addressfinder is a data quality platform for verifying addresses, emails, and phone numbers. It helps you ensure accurate customer and contact data every time. - [Aeroleads](https://composio.dev/toolkits/aeroleads) - Aeroleads is a B2B lead generation platform for finding business emails and phone numbers. Grow your sales pipeline faster with powerful prospecting tools. - [Agiled](https://composio.dev/toolkits/agiled) - Agiled is an all-in-one business management platform for CRM, projects, and finance. It helps you streamline workflows, consolidate client data, and manage business processes in one place. - [Ahrefs MCP](https://composio.dev/toolkits/ahrefs_mcp) - Ahrefs MCP is Ahrefs' hosted MCP server for SEO data and insights. Use it to access backlinks, organic metrics, keyword research, and competitor analysis. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Modem MCP? With a standalone Modem MCP server, the agents and LLMs can only access a fixed set of Modem tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Modem and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with ChatGPT? Yes, you can. ChatGPT 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 Modem tools. ### Can I manage the permissions and scopes for Modem while using Tool Router? Yes, absolutely. You can configure which Modem 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 Modem data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)