How to integrate Browserbase tool MCP with Codex

Connect Codex to Browserbase tool MCP. Start a new headless browser session now, download all artifacts from last session, and more using natural language, with authentication handled for you.

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Api Key

Browserbase is a serverless platform for running and managing headless browsers at scale. It lets you automate and monitor browser tasks with Playwright, Puppeteer, and Selenium—no infrastructure headaches.

24 Tools

Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Browserbase tool MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

Also integrate Browserbase tool with

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

  • CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Large tool responses: Handle them to minimise context rot.
  • Dynamic just-in-time access to 20,000 tools across 1500+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.

How to install Browserbase tool MCP in Codex

Run the setup command

Run this command in your terminal to add the Composio MCP server to Codex.

Terminal

It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

Composio authentication page

(Optional) Authenticate with OAuth

To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.

bash
codex mcp login composio

Verify the connection

Run codex mcp list to confirm Composio appears as a registered MCP server.

bash
codex mcp list

Codex App

Codex App follows the same approach as VS Code.

  1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
  2. Fill the header and Key fields with { "x-consumer-api-key" = "ck_*******" }.
  3. The Key is the Composio API key, that you can find on dashboard.composio.dev
  4. Click on Authenticate and authorize Codex to your Composio account and you're all set.
Codex App MCP setup
  1. Restart and verify if it's there in .codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }

What is the Browserbase tool MCP server, and what's possible with it?

The Browserbase MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Browserbase account. It provides structured and secure access to your browser sessions, contexts, projects, recordings, logs, files, and extensions, so your agent can create sessions, manage reusable contexts, inspect browser activity, retrieve recordings, and monitor project usage on your behalf.

  • Browser session management: Have your agent create isolated browser sessions, check their status, list recent sessions, and release running sessions when work is complete.
  • Reusable browser contexts: Let the agent create, inspect, and update browser contexts that preserve settings across multiple sessions.
  • Session monitoring and debugging: Direct your agent to retrieve live debugging access, review captured network activity, and inspect session logs.
  • Recordings and session artifacts: Instruct your agent to retrieve session replays, request downloadable recordings, and download generated session files.
  • Projects, files, and extensions: Have your agent review projects and usage, upload files for browser forms, and upload or inspect browser extensions.

Conclusion

You've successfully integrated Browserbase tool with Codex using Composio's MCP server. Now you can interact with Browserbase tool directly from your terminal, VS Code, or the Codex App using natural language commands.

Key benefits of this setup:

  • Seamless integration across CLI, VS Code, and standalone app
  • Natural language commands for Browserbase tool operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1500+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

  • Try asking Codex to perform various Browserbase tool operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities
TOOLS

Supported Tools

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

Update Browser Context

Tool to update a specific browser context.

Create Browser Context

Create a reusable browser context; the API key can select the project.

Create Browser Session

Create an isolated Browserbase session and return its connection details.

Delete a browser context

Tool to delete a browser context and all its stored data (cookies, localStorage, etc.

Delete a browser extension

Tool to delete an uploaded browser extension by its ID.

Delete Session Downloads

Tool to delete all file downloads from a specific browser session.

Download Session Artifacts

Download a completed session's generated files as a ZIP archive.

Get Browser Context

Return metadata for a browser context by ID.

Retrieve a browser extension

Tool to retrieve details of a specific browser extension.

Get Browserbase Project

Return project metadata, default timeout, and assigned concurrency.

Get project usage statistics

Tool to retrieve usage statistics for a project including browser minutes and proxy bytes consumed.

Get Browser Session

Return status, connection details, and timestamps for a browser session.

Get Session Debug URLs

Return live debugger and WebSocket URLs for a running browser session.

Get Session Logs

Return network request and response events captured during a browser session.

Get Session Replay

Return HLS replay metadata and page playlist paths for a recorded session.

Get Session Replay Page

Return the HLS M3U8 playlist for one recorded replay page.

List Browserbase Projects

List projects with their default timeout and assigned concurrency.

List Recording Downloads

Poll per-page MP4 assembly after requesting recording downloads until every page is COMPLETED or FAILED.

List Browser Sessions

List browser sessions, optionally filtered by status or user metadata.

Release Browser Session

Irreversibly request release of a running browser session, ending it before its configured timeout to avoid further charges.

Request Recording Downloads

Start asynchronous MP4 assembly for every recorded page of a completed session, then poll List Recording Downloads until every page is COMPLETED or FAILED.

Upload Browser Extension

Tool to upload a browser extension for use in sessions.

Upload Session File

Upload one file so browser interactions can select it in a file input field.

Upload Session Files

Upload multiple files to one browser session for file-input interactions.

FAQ

Frequently asked questions

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

Yes, you can. Codex 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 Browserbase tool tools.

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

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