Haystack's MCP Server Now Works in Claude, ChatGPT, Copilot and Slack, With New Write Access Across All Four

الملخص

Employees can now get intranet answers in ChatGPT, Microsoft Copilot and Slack, and starting October 26 can create pages and posts from all four. VENICE, Calif., Oct. 22, 2026 — Haystack, the modern intr…