---
title: "Concepts"
description: "Conventions shared by every endpoint in the API."
---

> Documentation Index
> Fetch the complete documentation index at: https://dev.touchsms.com.au/llms.txt
> Use this file to discover all available pages before exploring further.

# Concepts

These pages cover behaviour that applies across the whole API:

- [Pagination](/concepts/pagination/): walking through list endpoints.
- [Timestamps](/concepts/timestamps/): date formats and time zones.
- [Errors](/concepts/errors/): HTTP status codes and error bodies.
- [Rate limits](/concepts/rate-limits/): how many requests you can make.
- [Security](/concepts/security/): keeping your keys and account safe.

Source: https://dev.touchsms.com.au/concepts/index.mdx