authenticate
Log in. With Hermes configured, the session is brokered (no credentials needed). Otherwise pass email/password — used once, never stored.
How to use it
Project documentation lists authenticate for the Freetaxusa MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), then check which tools your installed version makes available. Tool availability can depend on configuration and credentials. A server handshake does not verify this tool’s behavior. See the full listing for setup details.
Install Freetaxusa MCP
node /path/to/freetaxusa-mcp/dist/index.jsOther tools in Freetaxusa MCP (14)
File Form 4868 for an automatic 6-month extension.
Enter 1099 income (INT, DIV, MISC, NEC, R, G, SSA).
Enter standard or itemized deductions.
Set filing status (single, married joint, head of household, etc.).
Fill name, SSN, DOB, occupation, and address.
Enter W-2 wage and withholding data.
Get which sections are complete, incomplete, or have errors.
Get current federal and state refund or amount owed.
Check if session is active, which tax year and section is loaded.
Get return overview: refund/owed, AGI, filing status, completed sections.
Jump to a section by name ("income", "deductions") or SID number.
Read all form fields and their current values on the active page.
Run error check and get review results before filing.
Submit the current page and advance to the next.