# 4chan Archive API

**Canonical:** https://apis.io/apis/4chan/4chan-archive-api/  
**Provider:** 4chan — https://apis.io/providers/4chan/  
**Base URL:** https://a.4cdn.org  
**Documentation:** https://github.com/4chan/4chan-API

4chan Archive API is one of 6 APIs that [4chan](https://apis.io/providers/4chan/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Archive. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and a support channel.

Per-board list of OP numbers for closed, archived threads.

## Machine-readable artifacts (6)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/4chan/refs/heads/main/openapi/4chan-archive-api-openapi.yml
- **Documentation** — https://github.com/4chan/4chan-API
- **Signup** — https://github.com/4chan/4chan-API#api-rules
- **Support** — https://raw.githubusercontent.com/api-evangelist/4chan/refs/heads/main/mailto:api@4chan.org
- **TermsOfService** — https://github.com/4chan/4chan-API#api-terms-of-service
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/4chan/refs/heads/main/apis.yml

## Other 4chan APIs (5)

- [4chan Boards API](https://apis.io/apis/4chan/4chan-boards-api/)
- [4chan Catalog API](https://apis.io/apis/4chan/4chan-catalog-api/)
- [4chan Indexes API](https://apis.io/apis/4chan/4chan-indexes-api/)
- [4chan Threadlist API](https://apis.io/apis/4chan/4chan-threadlist-api/)
- [4chan Threads API](https://apis.io/apis/4chan/4chan-threads-api/)

## Tags

Archive

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/4chan/4chan-archive-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/4chan/.