Short description: Messaging platform.
Optional API documentation URL: https://core.telegram.org/api#telegram-api
Users should post in a public group chat, then note the message link.
Those wishing to audit can add bots to the group without approval from the admins.
Messages cannot be fetched through the bot API, but it can be fetched through the MTProto (client) API with bot credentials. MTProto however is encrypted and is not plain HTTP so it may be better to rely on external libraries.