OpenTG Public API
The OpenTG API lets an AI agent (or any client) "web-search Telegram": full-text search across indexed public channel posts, browse/inspect individual channels, and read full posts.
https://api.opentg.ai/v1
GET /searchSearch Telegram posts (last 30 days)GET /channelsBrowse / discover indexed channelsGET /channels/{username}Get an indexed channel profileGET /channels/{username}/postsList an indexed channel's posts (archive, cursor-paginated)GET /channels/{username}/liveLive channel metadata + latest posts (on-demand scrape)GET /channels/{username}/posts/{slug}Get a single post (full content)GET /languagesList channel languages available as filtersGET /metaYour quota and tier