Try the engine
Check our math on a household that looks like yours.
Every page on this site argues that a number without a second implementation behind it is a claim rather than a fact. This is where you test that on your own inputs instead of ours. No key, no account, and nothing you type is written down.
One earner in their early thirties, a mortgage, a 401(k) just started, and decades of surplus ahead. The shape most planning tools get right and most tax engines never see.
Exercises: surplus-accumulation, mortgage-payoff, graduated-state-tax. Fictional — invented for evaluation.
Posts to /api/v1/project — no key, and nothing is stored. The schema has no name field and no account numbers, so there is nothing here to identify anyone. Expense labels are stripped before the numbers are computed.
The same thing, from a terminal
Every household on this page is served as a ready-to-post body, so evaluating the engine is two commands rather than an afternoon of writing a household document by hand.
curl -s https://worthune.com/api/v1/project/examples/retired-couple-spousal \
| jq .body \
| curl -s -X POST https://worthune.com/api/v1/project \
-H 'content-type: application/json' -d @-GET /api/v1/project lists all twelve and the shape of the request. Post the same document twice and the evidence hash comes back identical — the engine is a pure function, which is what makes the record worth anything.
What a paid plan adds
Not the arithmetic. The arithmetic is free here and there is no run meter, on this page or anywhere else. What a plan buys is the household as a durable resource: an id it keeps, the REST surface around it, bulk import from your existing book, signed webhooks, drift detection when the facts move underneath a plan, embeds without our badge, and the coordination layer that works across a whole book rather than one household at a time. That is the product. This page is the proof that it computes what we say it computes.
Talk to us