HQBase is a Model Context Protocol (MCP) server: Connect AI agents to your self-hosted HQBase shared email workspace. In practice that means any MCP-compatible AI assistant can call HQBase's tools directly — the model decides when to use them in a conversation or agent run.
It's a hosted (remote) server — point your client at https://{installation_domain}/mcp and you're connected, with nothing to install locally. The current release is v1.0.0, published under the AGPL-3.0 license, with source at HQBase/hqbase on GitHub, where it has earned 309 stars.
HQBase is listed under Communication on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain HQBase for HQBase, claim this listing to verify ownership, earn the Verified badge, and keep the details current.
