ATLASS OS is a Model Context Protocol (MCP) server: 171 MCP tools for field-service CRM, scheduling and double-entry accounting. Hosted; BYO agent. Because it speaks the Model Context Protocol, AI assistants can use ATLASS OS as a set of callable tools instead of you copy-pasting between apps.
It's a hosted (remote) server — point your client at https://app.atlass-os.com/mcp and you're connected, with nothing to install locally. The current release is v1.1.0.
On mcp.site, ATLASS OS sits in the Finance category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain ATLASS OS for Atlass-OS, claim this listing to verify ownership, earn the Verified badge, and keep the details current.