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How to connect Smol Machines with ChatGPT

Connect ChatGPT to Smol Machines MCP. Create a smol cloud machine for testing, run bounded diagnostics on your machine, and more using natural language, with authentication handled for you.

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Smol Machines is a cloud service for creating and operating isolated virtual machines. It provides a safe, bounded environment for running commands and moving files.

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How to connect Smol Machines MCP with ChatGPT

ChatGPT 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 Smol Machines account to ChatGPT via Composio Connect, so it can create isolated machines, run bounded commands, transfer files, inspect usage, and manage machine state through natural language commands without ever putting your account credentials at risk.

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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 Smol Machines 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.

Prerequisites

  • A ChatGPT account. We will use the ChatGPT desktop app, and the steps are the same on the web.
  • Access to the Smol Machines workspace you want to connect.
  • Composio plugin.

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 Smol Machines to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

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.

Composio login and Allow access screen for ChatGPT

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 Smol Machines messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize Smol Machines.

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.

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

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting Smol Machines

  • Create a Smol Cloud machine for testing
  • Run bounded diagnostics on your machine
  • Transfer logs from your Smol machine

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 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 Smol Machines action and event your agent gets out of the box.

Create Machine

Create one bounded Smol Cloud machine in the stopped state with explicit resources, a finite auto-stop interval and deletion TTL, and an explicit outbound network policy.

Delete Machine

Permanently delete one Smol Cloud machine by its exact machine ID.

Download File

Download and offload one file from an exact cloud machine.

Execute Command

Run one bounded foreground argv command on an exact hosted Smol Cloud machine.

Get Account

Get the connected account's status, plan, effective machine limits, billing-period usage, and spend in integer micros.

Get Account Usage

Get metered usage for the connected account's provider-defined period, keeping the requested and consumed metric windows distinct.

Get Machine

Get configuration, lifecycle state, and readiness for one cloud machine by its exact machine id, not by name.

Get Machine Usage

Get billing-period usage and cost in integer micros for one exact machine ID.

List Machines

List cloud machines owned by the connected account, optionally requiring all supplied labels to match.

Start Machine

Start one stopped cloud machine by exact machine ID.

Stop Machine

Stop compute for one cloud machine by exact id while preserving its filesystem.

Upload File

Upload a file of at most 8,000,000 bytes to a safe relative guest path on one cloud machine identified by its exact machine ID.

FRAMEWORKS

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FAQ

Frequently asked questions

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

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 Smol Machines tools.

Yes, absolutely. You can configure which Smol Machines 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 Smol Machines data and credentials are handled as safely as possible.

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