opentabs-dev/opentabsOpen-source MCP server that gives AI agents access to 100+ web applications through the user's authenticated browser session. No API keys, no screenshots, no DOM scraping — talks directly to web app internal APIs via a Chrome extension. Supports Slack, Discord, GitHub, Jira, Notion, Reddit, X, and 100+ more services with ~2,000 tools. Works with Claude Code, Cursor, Windsurf, and any MCP client.