The Runtime Company builds open-source tools that connect AI coding agents to the real world. Standard protocols, no vendor lock-in, full user control.
Infrastructure that gives AI agents real-world capabilities. Starting with the browser.
Give your AI agent a real browser. Connect any coding agent to real Chrome and Firefox sessions through a standardized MCP protocol. Real cookies, real sessions, full DOM access.
More products coming soon. We're building the complete toolkit for AI agent infrastructure.
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 hosted relay routes the command to the correct browser session, matching it by profile, install, or session group.
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 codebase, one protocol, works across Chromium and Gecko engines.
DOM operations execute in under 20ms browser-side. Optimized relay dispatch keeps total round-trips responsive.
Multiple agents can work on the same browser without conflict. Tab-group-backed session groups keep workflows separate.
Fully managed cloud relay. No local daemon to install or maintain. Connect your extension, point your agent, start building.
Full DOM snapshots with semantic regions, accessible targets, forms, and interactive elements. Your agent sees what users see.
Compact tool schemas designed to minimize context usage. 48 tools in ~5,300 tokens total, keeping your agent's context window clear for actual work.
browser.context.getbrowser.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.dialog.handlebrowser.page.navigatebrowser.tabs.listbrowser.tabs.createbrowser.tabs.closebrowser.page.reloadbrowser.page.history.navigatebrowser.window.resizebrowser.page.screenshotbrowser.console.readbrowser.network.readbrowser.permissions.setbrowser.permissions.getbrowser.permissions.clearbrowser.shortcuts.listbrowser.shortcuts.executebrowser.sessions.listbrowser.sessions.resolvebrowser.control-sessions.listbrowser.control-sessions.openbrowser.session-groups.listbrowser.session-groups.claim-tabbrowser.session-groups.claim-active-tabbrowser.session-groups.release-tabbrowser.session-groups.transfer-tabbrowser.session-groups.closebrowser.cookies.listbrowser.cookies.removebrowser.cache.clearbrowser.containers.listAdd 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://browser-relay.suyashbhawsar.workers.dev/mcp",
"headers": {
"Authorization": "Bearer $BROWSER_RELAY_CONNECTOR_TOKEN"
}
}
}
}Free while in beta. Paid tiers coming soon.
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.
Create an account, install the extension, connect your agent.