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.
- FOR YOUCOMPOSIOFOR YOUConnect your AI to 1,000+ apps with secure auth and delegated access.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.
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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.
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.
Introduction
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 1000+ 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.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
codex mcp listCodex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on dashboard.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
[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 tool 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 headless browser environments, so your agent can launch browser sessions, capture artifacts, retrieve debug info, and manage session contexts—all at scale and with zero manual setup.
- Automated browser session management: Instantly create, retrieve, and update browser sessions to run automated browsing tasks in isolated environments.
- Headless testing and monitoring: Let your agent spin up new browser contexts for advanced testing, monitoring, or web scraping workflows—no local infrastructure needed.
- Artifact and log retrieval: Automatically collect session artifacts (like screenshots, HAR files, or logs) after browser tasks complete for audit, debugging, or analytics purposes.
- Real-time session debugging: Fetch live debug URLs so your agent (or you!) can connect and troubleshoot active sessions on demand.
- Comprehensive session tracking: List, filter, and inspect all your browser sessions, including metadata, statuses, and historical activity, to stay on top of your automation fleet.
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 1000+ 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
Supported Tools
Every Browserbase tool action and event your agent gets out of the box.
How to build Browserbase tool MCP Agent with another framework
OpenAI Agents SDK
Use Browserbase tool MCP with OpenAI Agents SDK
Claude Agent SDK
Use Browserbase tool MCP with Claude Agent SDK
Claude Code
Use Browserbase tool MCP with Claude Code
Claude Cowork
Use Browserbase tool MCP with Claude Cowork

Kimi Code
Use Browserbase tool MCP with Kimi Code

OpenClaw
Use Browserbase tool MCP with OpenClaw

Hermes
Use Browserbase tool MCP with Hermes
CLI
Use Browserbase tool MCP with CLI
Google ADK
Use Browserbase tool MCP with Google ADK
LangChain
Use Browserbase tool MCP with LangChain
Vercel AI SDK
Use Browserbase tool MCP with Vercel AI SDK
Mastra AI
Use Browserbase tool MCP with Mastra AI
LlamaIndex
Use Browserbase tool MCP with LlamaIndex
CrewAI
Use Browserbase tool MCP with CrewAI
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Frequently asked questions
Start with Browserbase tool.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Browserbase tool tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building
