4chan Archive API
Per-board list of OP numbers for closed, archived threads.
4chan Archive API is one of 6 APIs that 4chan publishes on the 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.
This API exposes 1 operation across 1 path, and defines 1 schema. It is described by OpenAPI 3.0.3, at version 2026-05-28.
Requests are made against 2 base URLs: https://a.4cdn.org, http://a.4cdn.org.
Metadata
The identity and technical contract details declared by the specification.
Paths & Operations 1
Across 1 path, the API surfaces 1 operation — 1 GET. Each is listed below with its method, path, parameters, and response codes.
Per-board list of OP numbers for closed, archived threads.
Schemas 1
The contract defines 1 schema that model the data the API accepts and returns. Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from 4chan 5
Other APIs 4chan publishes across the network.