Public APIs

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WealthTools | Personal Finance API favicon

WealthTools | Personal Finance API

Finance

Free REST API for personal finance calculations — mortgage payments, investment growth projections, debt payoff timelines, and net worth tracking.

WealthTools | Personal Finance API's website screenshot

About WealthTools | Personal Finance API

WealthTools is a free suite of financial planning calculators covering investments, mortgages, credit card debt payoff, budgeting, and net worth tracking. Calculations run in the browser without requiring an account; creating a free account adds the ability to save calculations, generate shareable links, and access data across devices. Shared calculation links can be viewed by recipients without an account.

The investment calculator projects growth using compound interest formulas, the mortgage calculator produces monthly payments and amortization schedules, and the credit card repayment tool compares payoff strategies. The site also offers a free financial health assessment that provides a personalized evaluation without requiring email signup.

WealthTools provides an MCP connector for Claude Desktop and ChatGPT, allowing users to check budgets, log expenses, and run mortgage, investment, and net worth calculations through an AI assistant. The site is responsive across desktop, tablet, and smartphone devices, and links to API documentation.

Key features

  • Investment calculator projecting compound growth for retirement planning
  • Mortgage calculator with monthly payments and amortization schedules
  • Credit card debt payoff planner comparing repayment strategies
  • Budget planner for tracking income, expenses, and spending categories
  • Net worth tracker for assets, liabilities, and wealth projections
  • MCP connector for managing budgets and running calculations via Claude Desktop or ChatGPT

Frequently asked questions

Is WealthTools free to use?

Yes, all calculators are 100% free with no hidden fees, and no credit card or signup is required to start.

Do I need to create an account?

No, calculators can be used immediately without signing up; an account is only needed to save calculations, generate shareable links, or access data across devices.

Is my financial data private and secure?

Calculations happen in your browser and your data never leaves your device unless you save it by creating an account, and saved data is encrypted and not sold.

Can I use WealthTools on mobile devices?

Yes, WealthTools is fully responsive and works on desktop, laptop, tablet, and smartphone.

Does WealthTools integrate with AI assistants?

Yes, WealthTools has a secure MCP connector for Claude Desktop and ChatGPT, letting users check budgets, log expenses, and run calculations by chatting with the assistant.

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