---
title: "C1st (@c1st)"
description: "C1st: API listing imported from its public OpenAPI spec."
account: "c1st"
---

# C1st

C1st: 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/c1st/feed.md

- [Customers 1st API](https://skmtc.dev/c1st/apis/customers-1st-api.md): Retail store management: customers, sales orders, gift cards, stock transactions, tickets and POS payments