How to integrate Openrouter MCP with ChatGPT Work

Connect ChatGPT Work to Openrouter MCP. Generate python code from this prompt, summarize this article using claude-3, and more using natural language, with authentication handled for you.

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OpenRouter is a unified API platform for accessing language models from various providers. It lets you easily integrate and switch between multiple LLMs with a single API.

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How to integrate Openrouter MCP with ChatGPT Work

ChatGPT Work is an agent inside ChatGPT built for your most ambitious work. It takes action across your apps and files, stays with a project for hours, and turns 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 Openrouter account to ChatGPT Work via Composio Connect, so it can generate python code from this prompt, summarize this article using claude-3, list all available llama-3 model endpoints through natural language commands without ever putting your account credentials at risk.

Also integrate Openrouter with

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Openrouter integration lets ChatGPT Work take actions like creating drafts, sending updates, labeling records, and more.
  • 1,000+ 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.

Prerequisites

  • A ChatGPT account with access to ChatGPT Work (rolling out across Pro, Enterprise, Edu, Plus, and Business plans). We will use the ChatGPT desktop app, which is available on every plan.
  • Access to the Openrouter workspace you want to connect.
  • Composio MCP.

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 Openrouter to ChatGPT Work

1. Open the MCP settings

In ChatGPT Work, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT Work settings showing the Plugins page with the MCP tab selected

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
ChatGPT Work Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Work Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate, log in via Composio, and click Allow access to authorize ChatGPT Work to use your Composio account.

Composio login and Allow access screen for ChatGPT Work MCP setup

4. Start using Composio

That is it - Composio tools are now available in ChatGPT Work. Ask it to work with your Openrouter account and it will run the actions you authorize.

What you can do after connecting Openrouter

  • Generate Python code from this prompt
  • Summarize this article using Claude-3
  • List all available Llama-3 model endpoints
  • Check your current OpenRouter API credits

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT Work to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
TOOLS

Supported Tools

Every Openrouter action and event your agent gets out of the box.

Create Chat Completion

Tool to generate a chat-style completion.

Create Coinbase Charge

Tool to create a Coinbase charge for crypto payment to add credits to your OpenRouter account.

Create Message (Anthropic Format)

Tool to create a message using Anthropic Messages API format via OpenRouter.

Get Credits

Tool to get the current API credit balance for the authenticated user.

Get Current Key

Tool to get information about the currently authenticated API key.

Get Generation

Tool to retrieve a generation result by its unique ID.

Get Models Count

Tool to get the total count of available models on OpenRouter.

List Available Models

Tool to list available models via OpenRouter API.

List Embedding Models

Tool to list all available embeddings models via OpenRouter API.

OpenRouter List Model Endpoints

Tool to list endpoints for a specific model.

OpenRouter List Providers

Tool to list all AI model providers available through the OpenRouter API.

List User Models

Tool to list models filtered by user provider preferences, privacy settings, and guardrails.

OpenRouter List ZDR Endpoints

Tool to preview the impact of Zero Data Retention (ZDR) on the available endpoints.

FRAMEWORKS

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Claude Agent SDK

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Claude Code

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Claude Cowork

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Codex logo

Codex

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Kimi Code logo

Kimi Code

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Grok Build logo

Grok Build

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Cursor logo

Cursor

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VS Code logo

VS Code

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OpenCode

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OpenClaw logo

OpenClaw

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Hermes logo

Hermes

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CLI logo

CLI

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Google ADK logo

Google ADK

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LangChain logo

LangChain

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Vercel AI SDK

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Mastra AI

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LlamaIndex

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CrewAI

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Pydantic AI logo

Pydantic AI

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AutoGen

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FAQ

Frequently asked questions

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

Yes, you can. ChatGPT Work 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 Openrouter tools.

Yes, absolutely. You can configure which Openrouter 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.

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 Openrouter data and credentials are handled as safely as possible.

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