Install the extension
Load the Chrome extension and sign in at trybeacon.space.
Why
Browser tools break when names lie.
Pages change. Labels duplicate. “Click Submit” hits the wrong Submit. One id per control in every observe dump. Your agent uses that id — not a guess from visible text.
How it works
Three steps out of the fog
Add MCP to Cursor
Paste your one-time key into mcp.json. Bearer auth. No query hacks.
Observe, then act
observe returns controls with ids. click, type, and run use those ids on your open tab.
Cursor→api.trybeacon.space→Your Chrome tab
MCP
Built for MCP
Tools: observe, click, type, press, scroll, navigate, run. Multi-step run executes without an LLM between steps. The extension is the hands; the server is the relay.
mcp.json
{
"mcpServers": {
"beacon": {
"url": "https://api.trybeacon.space/mcp",
"headers": { "Authorization": "Bearer bcn_…" }
}
}
}Security
Your browser. Your key.
- MCP keys are generated once; we store a hash, not the secret.
- Passwords hashed with bcrypt.
- Relay does not replace your login to sites — you stay logged in as you normally are.
- Rotate your key anytime from account.
Still in the fog?