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Browser Hands MCP
Connects agents to an existing Chrome session through a local extension and stdio server. Supports page reads, screenshots, form input and JavaScript execution. Requires macOS, Chrome and Node.js 18 or later; Linux is experimental. Optional quick-task tools call a configured model API. Ordinary tools rely on agent instructions for sensitive-action approval. First public release published November 12, 2026 (UTC).
MCP unverified
Integration
| Transport | stdio |
| Auth | none |
| Endpoint | node /absolute/home/.thundermcp/thundermcp.mjs mcp |
| Install | Inspect a pinned release and installer before approval; install the reviewed local server and unpacked Chrome extension in a dedicated authorized profile, then manually register node with the absolute thundermcp.mjs path and mcp argument; review native messaging permissions, keep optional model API billing separate and require approval before submit, send, payment or deletion |
Use Cases
| 01 | Inspect an authorized page in a logged-in test profile |
| 02 | Fill a draft form and stop before submission |
Tags
chrome browser-automation native-messaging screenshots
Machine-readable: /api/servers.json
· JSON-LD schema embedded in <head>