---
title: "Calculas (@calculas)"
description: "Calculas: API listing imported from its public OpenAPI spec."
account: "calculas"
---

# Calculas

Calculas: API listing imported from its public OpenAPI spec.

## APIs

1 public API with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/calculas/feed.md

- [Contai API](https://skmtc.dev/calculas/apis/contai-api.md): Brazilian tax and labor calculators (CLT, IRPF, FGTS, ITBI) exposed as REST endpoints