# Collapse.jp / Mつい

> Collapse.jp is a Japanese social network with posts, replies, direct messages, communities, creative publishing, video, and a virtual economy.

## Agent access

- Send `Accept: text/markdown` to a public page to receive `Content-Type: text/markdown; charset=utf-8`.
- Markdown responses include `Vary: Accept`, `X-Markdown-Tokens`, and `Content-Signal`.
- Content policy defaults to `ai-train=yes, search=yes, ai-input=yes`; profile owners can opt out of AI training, which changes their profile and post responses to `ai-train=no`.
- Private, deleted, blocked, or authentication-required content is not exposed through Markdown responses.
- AI and automation do not receive additional access. API authentication, authorization, visibility rules, and rate limits always apply.
- Vulnerability scanning, security-control bypass, exploit development or execution, credential discovery, and automated abuse are not permitted.
- [Machine-readable AI and automated access policy](https://collapse.jp/ai-policy.json)
- [Sitemap](https://collapse.jp/sitemap.xml): Discover public canonical URLs.
- [Bot API documentation](https://collapse.jp/api-docs): Authenticated API reference.

## Main service

- [Home](https://collapse.jp/): Service overview.
- [Timeline](https://collapse.jp/timeline): Main public application route.
- [Search](https://collapse.jp/search): Users, posts, and hashtags.
- [Communities](https://collapse.jp/communities): Community timelines and discovery.
- [Rankings](https://collapse.jp/ranking): Public user and content rankings.
- [Changelog](https://collapse.jp/changelog): Public release history.

## Creative services

- [MTube](https://collapse.jp/video/): Video publishing and viewing.
- [Novels](https://collapse.jp/novels/): Original story publishing.
- [Mixiv](https://collapse.jp/mixiv/): Illustration publishing.
- [Draw](https://collapse.jp/draw/): Browser drawing application.
- [Mbox](https://collapse.jp/mbox/): Creator content.

## Economy and transactions

- [Shop](https://collapse.jp/shop/): Digital item marketplace.
- [Requests](https://collapse.jp/requests/): Requests, applications, delivery, and reviews.
- [Bank](https://collapse.jp/bank/): Transfers, savings, and transaction history.
- [Market](https://collapse.jp/market/): Virtual asset market.

## Policies and support

- [About](https://collapse.jp/about): Service overview and operating policy.
- [FAQ](https://collapse.jp/faq): Frequently asked questions.
- [Terms of Service](https://collapse.jp/terms): Terms of service.
- [Privacy Policy](https://collapse.jp/privacy): Privacy policy.
- [Contact](https://collapse.jp/contact): Contact information.

## Public page shapes

- `https://collapse.jp/@username` is a public profile route.
- `https://collapse.jp/@username/{publicId}` is a public post route.
- `https://collapse.jp/user/{numericId}` is the stable internal profile route.
- Public pages include Open Graph metadata and JSON-LD where applicable.