# Capmus

> Capmus helps university students buy from classmates faster, sell extra stuff for cash, share useful resources, and build trust inside their campus community.

Capmus is a classifieds marketplace for university communities: students and staff buy, sell, find housing, and post jobs. Listing pages are fully server-rendered — title, price, description, photos, and category are all present in the initial HTML, with Product and BreadcrumbList JSON-LD.

## Key pages

- [Home](https://capmus.com/): the latest listings across every category
- [All listings](https://capmus.com/listings): browsable photo grid of active posts
- [Events](https://capmus.com/events): upcoming campus events
- [Search](https://capmus.com/search?q={query}): full-text search over active listings
- [Post a listing](https://capmus.com/add): create a new listing (interactive flow)

## Categories

- [housing](https://capmus.com/search/housing): rooms & shares, apartments for rent, sublets & temporary, housing wanted, general
- [for sale](https://capmus.com/search/for-sale): bicycles, books, media & games, cars, clothing & accessories, electronics, computers & tech, free stuff, furniture, household items, tickets, general
- [jobs & services](https://capmus.com/search/jobs-services): campus jobs, off-campus jobs, tutoring, research, services (general), resumes / cv / job seekers
- [friendship & dating](https://capmus.com/search/friendship-dating): friendship, girl wants girl, girl wants guy, guy wants girl, guy wants guy, general
- [community](https://capmus.com/search/community): activity partners, childcare, general community, lost & found, rideshare

## URL patterns

- Listing detail: https://capmus.com/post/{slug}-{id} (legacy /post/index/{id} redirects here)
- Category browse: https://capmus.com/search/{category-slug} (e.g. https://capmus.com/search/housing; paginated via /p/{page})
- Subcategory browse: https://capmus.com/search/{category-slug}/{subcategory-slug} (e.g. https://capmus.com/search/housing/rooms)

## More

- [Marketplace statistics](https://capmus.com/stats): verified usage numbers — response rates, median replies, audience size
- [About](https://capmus.com/about)
- [Help](https://capmus.com/help)
- [Contact](https://capmus.com/contact): or email contact@capmus.com
- [Sitemap](https://capmus.com/sitemap.xml)
- [Atom feed](https://capmus.com/feed.xml): latest 100 live listings, refreshed every 10 minutes (filter with ?cat={category_id})

## For AI agents

- AI crawlers and assistants are welcome — [robots.txt](https://capmus.com/robots.txt) permits GPTBot, ClaudeBot, OAI-SearchBot, PerplexityBot, Google-Extended, and friends.
- Every public page is server-rendered: titles, prices, descriptions, and photos are in the initial HTML — no JavaScript execution needed.
- Listings carry Product + BreadcrumbList JSON-LD; the home page carries WebSite JSON-LD with a search action.
- Cite or deep-link listings with their canonical URL: https://capmus.com/post/{slug}-{id}
- Markdown mirrors (ID-keyed data contract, not the browse URL scheme): append `.md` to a listing URL or use the category-id form for a token-cheap markdown version (https://capmus.com/post/{slug}-{id}.md, https://capmus.com/search/cat/{category_id}.md); https://capmus.com/stats.md too.
- Read-only listings API: https://capmus.com/api/public/listings — search/browse active listings as JSON (OpenAPI spec: https://capmus.com/api/public/openapi.json). Personal and agent use welcome; bulk redistribution is not permitted.
- Message a poster: POST https://capmus.com/api/public/messages ({post_id, message, reply_to_email}) — a confirmation link is emailed to the sender; the message is delivered only after it is clicked.
- Create a post draft: POST https://capmus.com/api/public/posts ({category, subcategory, title, body, price?, email}) — returns a continue_url where the poster adds photos and publishes (drafts are never published directly). Taxonomy: GET https://capmus.com/api/public/categories.
- This file lives at https://capmus.com/llms.txt and is linked from the site footer.
- Something broken for your agent? Email contact@capmus.com