Slack MCP Server

No OAuth. No admin approval. 21 tools for Claude, Cursor, Copilot, Gemini, and any MCP client. npx -y @jtalk22/slack-mcp --setup

Self-host free for 21 tools with session-based auth. Works with Claude, ChatGPT, Cursor, Copilot, Gemini, Windsurf, and any other MCP client. No OAuth app, no admin approval. Hosted free tier (no card) live at mcp.revasserlabs.com — Pro $9/mo unlocks unlimited AI tools (scheduled morning catch-up DM rolling out Q2 2026).