#forum

Live read-only access to the 4chan imageboard, served straight from its official JSON API — one of the most influential anonymous forums on the internet and a primary source of internet culture, exposed as clean JSON with the HTML stripped to plain text. The boards endpoint lists every one of 4chan's ~77 boards with its code, title, worksafe flag, pages, threads-per-page and a description, from /g/ (Technology) and /v/ (Video Games) to /news/, /sci/ and /pol/. The catalog endpoint returns every live thread on a board summarized — the opening post's subject and a plain-text teaser of its comment, the reply and image counts, the sticky and closed flags and when it was last bumped — sorted by activity, replies or images: the front page of the board as data. The hot endpoint self-discovers and returns the single most active thread on a board right now, fully expanded with the original post and its top replies, so you never need a thread id that has expired. The thread endpoint returns one specific thread in full by its id — the original post and every reply with author name, timestamp, plain-text comment and image filename — and falls back to the current top thread when no id is given. Everything is the live board state, nothing stored. This is the imageboard layer for any social-listening, trend-tracking, meme-research, moderation or bot app. Live from 4chan's JSON API. Distinct from Reddit, Hacker News and Lemmy APIs — this is 4chan's boards, catalogs and threads. Some boards are NSFW (worksafe flag provided). 5 endpoints, no key on our side, nothing cached.

api.oanor.com/fourchan-api

A live window into Discourse's own official community forum (meta.discourse.org), the flagship instance of the most widely used modern forum platform, as an API. Pull the latest topics with their reply, view and like counts; the top topics of a day, week, month or year; the category list with topic counts; or a user's profile (trust level, join date). The traditional threaded-forum experience delivered as clean JSON for social, news-aggregation and community-dashboard apps. Live data, no key. Distinct from link-aggregators and microblogs — this is forum software.

api.oanor.com/discourse-api

Render BBCode — the [b]…[/b] markup used by forums, bulletin boards, game communities and many comment systems — into clean HTML, or strip it down to plain text. Supports bold, italic, underline, strikethrough, lists, quotes, code blocks, links, images, colour and size. Dangerous URL schemes (javascript:, data:, vbscript:) in links and images are neutralised, so the HTML is safe to display. The to-text endpoint removes all markup for previews, search indexes, notifications and excerpts. Powered by the bbob parser. Pure local computation — no key, no third-party service, instant; send large posts via POST. Live, nothing stored. 3 endpoints. Distinct from Markdown rendering and HTML-to-Markdown conversion.

api.oanor.com/bbcode-api