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How to connect Kernel with ChatGPT

Connect ChatGPT to Kernel MCP. Launch a cloud browser for checkout testing, run playwright checks on a web app, and more using natural language, with authentication handled for you.

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Kernel is a browser automation platform with cloud browsers, computer controls, Playwright execution, and session replays. It provides persistent browser profiles and reliable infrastructure for browser-based workflows.

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How to connect Kernel 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 Kernel account to ChatGPT via Composio Connect, so it can launch cloud browsers, run Playwright tasks, replay sessions, and manage browser profiles 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 Kernel 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

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

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 Kernel

  • Launch a cloud browser for checkout testing
  • Run Playwright checks on a web app
  • Review a browser session replay

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 Kernel action and event your agent gets out of the box.

Batch Computer Actions

Execute 1-100 computer actions sequentially in a Kernel browser, stopping on the first error.

Browser Curl

Send a read-only GET, HEAD, or OPTIONS request through a Kernel browser's network stack, inheriting its cookies, TLS fingerprint, proxy settings, and default headers.

Browser HTTP Request

Send a state-changing POST, PUT, PATCH, or DELETE request through a Kernel browser's network stack, inheriting its cookies, TLS fingerprint, proxy settings, and default headers.

Click

Click at browser viewport coordinates with an optional mouse button, click phase, modifiers, and repetition count.

Create Browser

Create a Kernel browser session; defaults to a headless browser with a 60-second inactivity timeout.

Create Profile

Create an empty persistent browser profile, optionally with a unique name, for reuse by later browser sessions.

Delete Browser

Permanently end and delete a Kernel browser session by ID or name.

Delete Playwright Executor

Stop and permanently delete a named, non-default Playwright executor from a Kernel browser.

Delete Profile

Permanently delete a browser profile by ID or name.

Download Profile

Download a profile's stored browser state.

Drag Mouse

Drag a mouse button through an ordered path of browser viewport coordinates, with optional timing, linear-step, and modifier controls.

Execute Playwright

Execute arbitrary TypeScript or JavaScript with Playwright access to the browser; the code may navigate, mutate pages, submit forms, or cause irreversible external effects.

Get Browser

Get safe operational details for one browser session by ID or name, optionally including a deleted session.

Get Mouse Position

Get the current mouse cursor coordinates in a Kernel browser session.

Get Profile

Get one browser profile by its ID or exact name.

Get Replay

Download a completed browser replay as MP4.

List Browsers

List browser sessions, optionally filtered by lifecycle state, search text, tags, or region, one offset page at a time.

List Playwright Executors

List the default and named Playwright executors for a Kernel browser, including whether each is busy and its owned tab when available.

List Profiles

List browser profiles, optionally filtered by substring or exact name, one offset page at a time.

List Replays

List replay recordings for a headful browser session without returning signed viewer URLs.

Move Mouse

Move the cursor to browser viewport coordinates, optionally using a timed human-like path and held modifier keys.

Press Key

Press an ordered sequence of X11 keys or key chords in a browser, optionally holding modifiers or holding the sequence for a duration.

Read Clipboard

Read the current text from a Kernel browser session's clipboard.

Rename Profile

Rename a Kernel browser profile by ID or exact name.

Restart Default Playwright Executor

Restart a Kernel browser's reserved default Playwright executor.

Save Browser Profile

Save a running browser's current state to exactly one destination profile ID or name, creating a named profile when needed and overwriting an existing destination.

Scroll

Scroll horizontally or vertically at browser viewport coordinates, optionally while holding modifier keys.

Set Cursor Visibility

Hide or show the cursor in a Kernel browser session.

Start Replay

Start recording a headful Kernel browser session and return its replay identifier and recording metadata without exposing its signed viewer URL.

Stop Replay

Stop an active replay recording for a Kernel browser identified by ID or name.

Take Screenshot

Capture the full browser viewport or a rectangular region as a PNG download.

Type Text

Type text into the currently focused browser element with an optional per-keystroke delay.

Update Browser

Update mutable settings on an existing Kernel browser session.

Upload Browser Extensions

Upload and activate one or more unpacked Chromium extension ZIP archives in an existing running browser.

Write Clipboard

Write text to the system clipboard of a Kernel browser session.

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FAQ

Frequently asked questions

With a standalone Kernel MCP server, the agents and LLMs can only access a fixed set of Kernel tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Kernel 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 Kernel tools.

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

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