How to integrate Browserless MCP with Atomic Agent

Connect Atomic Agent to Browserless MCP. Download all invoices from your dashboard, extract product details from a competitor's site, and more using natural language, with authentication handled for you.

Browserless logoBrowserless
Api Key

Browserless is a headless browser automation service for running scripts and automations on web pages. It streamlines browser infrastructure, letting you automate anything from scraping to UI testing without local setup.

7 Tools

Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Browserless.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Browserless account. See the Atomic Agent documentation for installation instructions.

Also integrate Browserless with

How Atomic Agent connects to Browserless

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect Browserless to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in Browserless. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Browserless account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

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

The Browserless MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Browserless account. It provides structured and secure access to browser automation tools, so your agent can perform actions like fetching web content, scraping data, generating PDFs, taking screenshots, and running custom browser scripts on your behalf.

  • Dynamic web content extraction: Instruct your agent to fetch full HTML content—including JavaScript-rendered pages—from any website.
  • Automated web scraping: Let your agent extract structured data from pages using CSS selectors, returning results in convenient JSON format.
  • On-demand PDF generation: Have your agent instantly generate PDFs from any webpage, with customizable parameters like format and filename.
  • Website screenshot capture: Direct your agent to take high-quality screenshots of entire pages or specific sections, supporting multiple image formats and options.
  • Custom browser automations: Empower your agent to execute tailored Puppeteer scripts, enabling powerful workflows like file downloads or bypassing bot protections.

Use Browserless from Atomic Agent

With your account connected, ask Atomic Agent to work with Browserless in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

TOOLS

Supported Tools

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

Download file using Puppeteer script

This tool allows downloading files that Chrome has downloaded during the execution of puppeteer code.

Execute Custom Function

A tool that allows executing custom Puppeteer scripts via HTTP requests.

Fetch HTML Content

This tool fetches the complete HTML content of a webpage using Browserless's content API.

Generate PDF from webpage

This tool generates a PDF from a specified webpage using browserless's PDF generation API.

Scrape webpage content using CSS selectors

A tool to extract structured content from a webpage by specifying CSS selectors.

Take Screenshot

A tool that captures a screenshot of a webpage using browserless's screenshot API.

Unblock Protected Content

This tool provides access to content from websites that implement bot protection mechanisms.

FAQ

Frequently asked questions

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

Yes, you can. Atomic Agent 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 Browserless tools.

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

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