FreeToolHub

44 MCP tools for money math and agent cost control — no signup, no tracking. **US tax & payroll** — self-employment tax, freelancer tax, 1099-K, capital gains, W-2 vs 1099 comparison, payroll withholding, quarterly estimates, estate tax, HSA/FSA savings, economic nexus, tariffs. **Loans & personal finance** — mortgage, car loan, student loan, home equity, rental ROI and affordability, compound interest, 401(k) vs Roth, life insurance, break-even, LLC cost comparison. **Business margins** — dropshipping and reseller profit, freelancer pricing. **MCP & AI cost control** — context-window budget planning, tool-definition compression, server trust scoring, security audit, server card generation and validation, tool portfolio advice, GitHub Actions cost, automation platform comparison, polling-cost trap detection, self-hosted TCO, LLM API and AI coding tool cost comparison. Calculations run server-side against CDN-backed datasets refreshed from official sources. Part of freetoolhub.org.

First seen 2 Oct 2026. Evidence as of 2 Oct 2026.