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DimensionOpen ChatGPT AtlasAn open-source, free alternative to ChatGPT Atlas.FSB MCP ServerControl the FSB browser extension from any MCP client for DOM-first AI browser automation.
FMRS33 / 100 · D66 / 100 · C
Reliability2 / 2010 / 20
Security and permissions7 / 2014 / 20
Maintenance5 / 2015 / 20
Documentation9 / 2015 / 20
Setup experience10 / 2012 / 20
Best for
  • Developers experimenting with browser automation.
  • Users who want AI browser capabilities in Chrome, Edge, or Electron.
  • Users who need access to Composio integrations.
  • Developers who want AI clients to directly control the browser
  • Scenarios requiring DOM-level understanding and low-latency automation (50-200 ms)
  • Multi-client support (Claude Code, Cursor, VS Code, etc.)
  • Internal tools or automation scripts needing browser interaction
Not for
  • Users seeking a documented MCP server transport or standard client configuration.
  • Users unwilling to provide a Google API key.
  • Production environments requiring confirmed official maintenance or a known license.
  • Headless browser or server-side monitoring
  • Bypassing website restrictions or unsupervised automation
  • Automation on sensitive pages without human supervision
  • Complex scenarios that require visual understanding (e.g., screenshots)
Required permissions
  • Requires browser-extension access to perform screenshots, clicks, typing, scrolling, and navigation on web pages.
  • Requires a Google API key; Tool Router mode additionally requires an optional Composio API key.
  • May access user-controlled web content and data from configured integrations.
  • Requires installing the Chrome extension, which requests permissions for active tab, debugger, storage, etc.
  • MCP server needs to connect to the extension via WebSocket (default ws://localhost:7225)
  • Optional Streamable HTTP mode requires allowing connections to http://127.0.0.1:7226/mcp
  • Uploading files requires providing absolute local paths
Risks and side effects
  • Browser automation may perform sensitive actions; the project provides confirmation dialogs for actions such as checkout and payment.
  • The handling risk for API keys, web content, and integration data depends on configuration and usage.
  • The license is listed as unknown, so specific commercial or redistribution rights should not be assumed.
  • Browser automation can be unpredictable on complex or sensitive sites; supervision is required
  • Credentials and payment info are stored in a vault but require user unlock flows
  • API keys are encrypted in Chrome storage, but clients may send page context to model providers
  • MCP server is a local process, posing local security risks
  • Capability catalog allows most non-denied origins but is gated by multiple checks
Supported clientsClaude Desktop, Claude Code, Cursor, VS Code, Windsurf, Codex
Tools030