Arc & Ledger Tax Reference is a Model Context Protocol (MCP) server: Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates. In practice that means any MCP-compatible AI assistant can call Arc & Ledger Tax Reference'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://mcp.arcandledger.com/directory/mcp and you're connected, with nothing to install locally. The current release is v0.15.1, with source at Bgenc48/arc-ledger-mcp on GitHub.
Arc & Ledger Tax Reference is listed under Finance 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 Arc & Ledger Tax Reference for arcandledger.com, claim this listing to verify ownership, earn the Verified badge, and keep the details current.