The Costs to Expect API.

A flexible Open Source REST API that is the backbone of the Costs to Expect Service.

API GitHub Docs

Open Source

We benefit from countless Open Source projects, this is one of our ways of giving back.


Initially designed to track expenses, our API has grown, it is capable of tracking almost anything these days.


Our API is scalable, we designed it knowing where we were going, we designed it knowing it would need to scale.


If you don't want to use our products, you are free to use our API with your own products or other products which use our API.


Everything is configurable, data types, validation, limits, check the config folder on GitHub.


Designed to be multilingual, all messages are processed via language files so the API can easily speak in any language.


A free powerful easy to use budgeting tool powered by the Costs to Expect API. A budgeting tool so easy to use, it’s child play!

In beta now, official release January 2023.

A screen shot the budget overview in Budget

Budget Pro

Budget Pro is Budget on steroids - it's everything you love about Budget and much more.

In development, due in the first half of 2023.

A screen shot the budget overview in Budget

Yahtzee Game Scorer

A fun little project powered by the API, no more designated scorer, everyone gets a score sheet

A screen shot of the score sheet for Yahtzee

Yatzy Game Scorer

We built Yahtzee so figured why not build Yatzy as well. We haven't yet decided which version of the game we enjoy more.

A screen shot of the score sheet for Yatzy