530A Model calculator is a Model Context Protocol (MCP) server: Free, deterministic 530A (Trump Account) projections, verified rules, and searchable guides. Because it speaks the Model Context Protocol, AI assistants can use 530A Model calculator as a set of callable tools instead of you copy-pasting between apps.
It's a hosted (remote) server — point your client at https://mcp.530amodel.com and you're connected, with nothing to install locally. The current release is v1.1.0, published under the MIT license, with source at zach-eikenberry/530A on GitHub.
On mcp.site, 530A Model calculator sits in the AI & Agents 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 530A Model calculator for 530amodel.com, claim this listing to verify ownership, earn the Verified badge, and keep the details current.
