What every network supports

The full matrix network → capabilities. It is the single source of truth about what a network can do: the catalogue publishes it, the backend checks it before acting, and your integration should filter its account pickers with it rather than keeping a list of its own.

comments is the coarse gate — whether the network has comments at all. Which actions it allows on one is a finer question and lives in GET /social_comment_actions, because the shape here is {[capability]: boolean} and nesting an object inside would break it.

Today ten networks answer comments: true: Facebook, Instagram, Threads, LinkedIn, X, YouTube, Google Business, Bluesky, Discord and Telegram. TikTok, WhatsApp, Slack and Pinterest answer false, for reasons of theirs and not ours — on Pinterest the API counts a pin's comments and offers no way to read them, so the figure shows up in the publication's statistics and there is still no inbox.

Three of the keys are about publishing, not about reading. destinations says the network publishes into places inside the account and every publication has to name one — a Pinterest board, read with GET /organizations/{id_organization}/accounts/{id_account}/destinations. link says a publication carries a destination link of its own, separate from its text. Both are false everywhere but pinterest today. reply_control says a publication can choose who can reply to it, and is true only on threads. The three are the reason to ask this matrix instead of keeping a list of your own: a composer with its own copy of which network has which field is exactly what drifted with the character limits.

Four more are what TikTok's content sharing guidelines ask a composer to show, and are true only on tiktok today: visibility (on TikTok, with no default), interactions, commercial_content, and publish_settings, which says the options each account allows must be read from GET /organizations/{id_organization}/accounts/{id_account}/publish_settings instead of a fixed list.

A true here is about the network, not about one account of it: a Telegram channel with no linked discussion group answers 965 on its comments even though the network has them.

Only needs authentication.