Browser Relay connects any coding agent to real Chrome and Firefox sessions through a standardized MCP protocol. No vendor lock-in, full user control.
Three layers, one clean protocol. Your agent talks MCP, Browser Relay handles the rest.
Your AI agent calls standardized tools like browser.page.click or browser.find through MCP stdio or HTTP.
The daemon (local) or hosted server (cloud) routes the command to the correct browser session via WebSocket.
The thin extension executes the action in your actual browser, with full DOM access, real cookies, real sessions.
Not another browser simulator. Real browser sessions, real user context, production-grade reliability.
Standard MCP protocol works with Claude Code, Cursor, Cline, Copilot, or any agent that speaks MCP. Zero vendor lock-in.
Works with your actual browser, your cookies, your logged-in sessions. No sandboxed simulation, no Playwright overhead.
Every action is visible and revocable. Tab-scoped approval rules, ask mode for mutations, granular permission scopes.
Chrome, Edge, Brave, Arc, Firefox. One extension, one protocol, works across Chromium and Gecko engines.
DOM operations complete in 3-15ms browser-side. Direct WebSocket relay, no polling, no intermediate queues.
Multiple agents can work on the same browser without conflict. Tab-group-backed session groups keep workflows separate.
Run the daemon on localhost for privacy, or use the hosted relay for team collaboration. Same protocol, your choice.
Full DOM snapshots with semantic regions, accessible targets, forms, and interactive elements. Your agent sees what users see.
Everything your agent needs to navigate, read, interact, and debug real web pages.
browser.page.snapshotbrowser.page.textbrowser.findbrowser.page.evaluatebrowser.regions.listbrowser.target.describebrowser.page.state.inspectbrowser.page.clickbrowser.page.typebrowser.page.fillbrowser.form.inputbrowser.page.scrollbrowser.page.selectbrowser.page.dragbrowser.page.pressbrowser.page.hoverbrowser.upload.filebrowser.page.navigatebrowser.tabs.listbrowser.tabs.createbrowser.page.reloadbrowser.page.history.navigatebrowser.window.resizebrowser.page.screenshotbrowser.console.readbrowser.network.readbrowser.artifacts.listbrowser.cookies.listbrowser.cache.clearbrowser.targets.listbrowser.targets.pickbrowser.sessions.listbrowser.session-groups.listbrowser.control-sessions.openAdd Browser Relay to your agent config. One JSON block, instant browser access. Works with any MCP-compatible agent.
{
"mcpServers": {
"browser-relay": {
"type": "http",
"url": "https://relay.runtime.co/mcp",
"headers": {
"Authorization": "Bearer $BROWSER_RELAY_TOKEN"
}
}
}
}Start free, scale when you need to. No credit card required.
For personal projects and experimentation.
For developers shipping with AI agents daily.
For teams building browser-driven workflows.
For organizations with compliance and scale needs.
Install the extension, connect your agent, ship faster.