ACRCloud

ACRCloud (@acrcloud_bot) carries the name of a real, established company in the audio-recognition industry, whose fingerprinting technology many other apps and services license to add song and content identification. That makes it a somewhat different proposition from anonymous hobby bots in this category: the underlying engine has a company and a track record behind it, even if this particular Telegram bot is a lightweight demo rather than ACRCloud's core commercial product.

No detailed usage bio is published on the bot's own page, so exact accepted formats and any rate limits are unconfirmed; the safest assumption is the category standard of sending an audio clip and receiving a match.

It is a reasonable pick specifically when you want the same class of technology used by production apps rather than an unknown hobby project, while accepting that as a demo bot it may be less actively maintained than ACRCloud's paid API offering.