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

# Tilwhen

Tilwhen: 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/tilwhen/feed.md

- [tilwhen date API](https://skmtc.dev/tilwhen/apis/tilwhen-date-api.md): Date arithmetic: add, subtract, diff, business days, holidays, with auditable receipts