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401k.loans: 401(k) loan and withdrawal calculators

loans.401k/401k-loans · v1.2026.1101.1

401(k) loan true cost, loan vs. withdrawal vs. personal loan vs. HELOC, early withdrawal tax.

Connect Remote server

Terminal
claude mcp add --transport http 401k-loans https://401k.loans/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "401k-loans": {
      "url": "https://401k.loans/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "401k-loans": {
      "type": "http",
      "url": "https://401k.loans/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://401k.loans/mcp

Tools 3 found in our last check

  • calculate_401k_loan_cost

    Runs the 401k.loans true-cost calculator: payment per paycheck and number of payments, total repaid and interest, pre-tax pay needed per payment, tax later on the interest, the 401(k) balance at payoff with and without the loan (growth gap) and that gap at 65, the legal and usua…

  • compare_401k_loan_alternatives

    Prices four ways to raise the same cash with the 401k.loans comparison tool: 401(k) loan, hardship withdrawal (grossed up for tax and the 10% additional tax), personal loan (rate plus origination fee) and HELOC. For each: amount taken out, monthly payment, money gone for good (i…

  • calculate_401k_early_withdrawal

    Runs the 401k.loans early withdrawal calculator for a cash-out or hardship withdrawal: amount taken out (or the gross needed to net a target), income tax at your marginal rates, the 10% additional tax, what you keep, what the plan withholds up front (20% mandatory, or 10% defaul…

Details

Endpointhttps://401k.loans/mcp (Streamable HTTP)
First published1 Nov 2026
Last updated1 Nov 2026
Registry nameloans.401k/401k-loans

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