How to Use the Browserbase MCP in LangChain

Chain together Browserbase sessions in LangChain to automate browser tasks without managing infrastructure.

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Connect Browserbase MCP to LangChain

Create your Vinkius account to connect Browserbase to LangChain and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Browserbase with LangChain

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Launch cloud browsers from LangChain chains

Trigger `create_browser_session` directly within your agent logic to spin up isolated Chromium instances. This keeps your local machine free of heavy browser binaries while the server handles the heavy lifting. You gain a CDP WebSocket URL instantly. Plug this into your existing automation scripts to navigate, click, or scrape content as part of a larger LangGraph workflow.

Manage active sessions inside LangChain

Use `list_browser_sessions` to keep track of every instance running under your account. You can filter by status to see which jobs are still active or which hit an error state. This visibility prevents resource leaks. If a chain hangs, you can use `get_browser_session` to inspect the state before deciding to clean up.

Kill stuck processes using LangChain tools

Invoke `stop_browser_session` when your agent finishes its task or hits a timeout. This immediately halts the remote instance and clears out the memory. It ensures you aren't paying for idle time. Since LangChain handles the tool execution, you can wrap this call in a finally block to guarantee cleanup every time.

Setup guide

Set up Browserbase MCP in LangChain

Prerequisites

Python 3.10+ installed
langchain-mcp-adapters + langgraph packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run pip install langchain-mcp-adapters langgraph langchain-openai. The MCP adapters package converts MCP tools into native LangChain BaseTool objects.
2

Connect via HTTP transport
Use MultiServerMCPClient with "transport": "http" pointing to your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Create a ReAct agent
Pass the discovered tools to create_react_agent() from LangGraph. The agent automatically routes Browserbase tool calls through the MCP protocol.
4

Run with any LLM
Swap ChatOpenAI for ChatAnthropic, ChatGoogleGenerativeAI, or any LangChain-compatible model. The MCP tools work identically across all providers.

agent.py

from langchain_mcp_adapters.client import MultiServerMCPClient
from langgraph.prebuilt import create_react_agent
from langchain_openai import ChatOpenAI

async with MultiServerMCPClient({
    "browserbase-mcp": {
        "transport": "http",
        "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    }
}) as client:
    tools = client.get_tools()

    agent = create_react_agent(
        ChatOpenAI(model="gpt-4o"),
        tools,
    )
    result = await agent.ainvoke({
        "messages": "List recent Browserbase transactions"
    })
    print(result["messages"][-1].content)

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Browserbase. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Browserbase MCP in LangChain

You call the list tool to see all current sessions. This returns status codes so you can decide if the agent needs to restart a session or continue.

Yes. Each tool call triggers a new isolated environment. You can spin up dozens of parallel instances across your agent network.

We keep your CDP credentials and session traffic isolated. Only your authenticated agent can access the WebSocket URL returned by the MCP server.

The session is destroyed immediately. Any unsaved cookies or temporary browser storage vanish the moment you run the stop command.

No. Browserbase does not log your browsing activity. We only track session metadata like IDs and status for your account management.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

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