# Chirp

> Chirp is a lightweight, 100% algorithm-free, real-time microblogging platform. Posts appear in strict chronological order with Markdown support, Open Graph cards, threaded replies, reposts, hashtags, and user profiles.

## Core Documentation

- [Homepage Feed](https://chirp.edu.scot/): Real-time chronological timeline feed
- [About Chirp](https://chirp.edu.scot/about.md): Platform vision and feature summary
- [Community Rules](https://chirp.edu.scot/rules.md): Code of conduct and guidelines
- [Privacy Policy](https://chirp.edu.scot/privacy.md): Minimalist data handling policy
- [Terms of Service](https://chirp.edu.scot/terms.md): Terms of service and usage conditions
- [Full LLM Specification](https://chirp.edu.scot/llms-full.txt): Technical architecture and API documentation
- [Sitemap XML](https://chirp.edu.scot/sitemap.xml): Dynamic XML sitemap for crawlers
- [Sitemap JSON](https://chirp.edu.scot/sitemap.php?format=json): LLM-friendly JSON sitemap with lastmod dates

## Public APIs

- [Timeline Feed API](https://chirp.edu.scot/api/posts.php?feed=all): GET recent chronological posts
- [Post Thread API](https://chirp.edu.scot/api/posts.php?id=1): GET single post with replies and ancestors
- [Hashtag Feed API](https://chirp.edu.scot/api/posts.php?feed=hashtag&tag=chirp): GET posts by hashtag
- [Trending Tags API](https://chirp.edu.scot/api/posts.php?action=trending_tags): GET top 10 trending hashtags
- [User Profile API](https://chirp.edu.scot/api/auth.php?action=user_profile&username=gql): GET user profile and counts
- [Open Graph API](https://chirp.edu.scot/api/og.php?url=https://example.com): GET Open Graph and PDF metadata