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Bilibili (B站) is China’s home for long-form video, anime, gaming and tech explainers, with a comment culture — danmaku scrolling over the video — that exists nowhere else. Its web API is undocumented and rate-limited. Through AgentKey your agent reads public Bilibili data the same way it reads everything else — find_tools, describe_tool, execute_tool — with several providers behind the scenes, so one route failing does not stop the task.

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What you can ask

  • “Find the most played Bilibili videos about Rust tutorials this year.”
  • “B站上这个UP主最近发了哪些视频？”
  • “Pull this video’s comments and danmaku and tell me what the audience reacts to.”
  • “Transcribe this Bilibili video.”
  • “How many followers, total views and likes does this UP主 have?”
  • “What is on the Bilibili hot search and popular list right now?”
  • “Which UP主 lead the Huahuo rankings in the tech category?”
  • “Who is streaming in the gaming live area right now?”

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What’s covered

Videos
  • Keyword search sorted by overall ranking, play count or publish time
  • Video detail by BVID or AID; multi-part videos; aid ↔ bvid conversion
  • Play URL and play info, audio URL
  • Danmaku (on-screen comments) by segment; caption and subtitle data
  • Short share-link resolution; the home feed
Comments
  • Comments on a video, paginated; replies under a comment; single reply detail
UP主 (creators)
  • Profile by UID; relation stats (followers and following); total views and likes
  • Uploaded videos; dynamics (动态) and dynamic detail
  • Collection folders and the videos they hold
  • Account search by keyword
Trending
  • Hot search; the popular feed; comprehensive popular-video information
  • Bangumi and cinema tabs
Live
  • Live areas, the streamers in an area, live room info and live video data
Creator marketplace (Huahuo 花火)
  • Creator rankings by category, video rankings by industry, X-Huo product and creator rankings with their periods and industries
  • Creator profile, representative videos and highlights, video performance, metric trends and follower trends
  • Creators with similar content or overlapping audiences; search by nickname; filter dictionaries for industry, persona, commercial and occupation tags
  • Live-commerce performance and categories, live creator profiles, guilds and MCN organizations
Transcripts
  • Transcription as a submit-then-fetch task

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How to use it

Pass the request in plain language and let the router pick the tool:
Both English and Chinese phrasing work, and the platform’s usual English and Chinese names all land here. Always describe_tool before executing — parameters and per-call costs differ between providers.
Building with code? The same capability is available as fixed-contract Scenario Methods with automatic provider failover: social.bilibili.post.search, social.bilibili.post.get, social.bilibili.post.comments, social.bilibili.user.get, social.bilibili.user.posts, social.bilibili.user.search, social.bilibili.trending.

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FAQ

No. AgentKey holds the upstream access; your agent only needs your AgentKey subscription.
Captions are the subtitle tracks attached to a video; danmaku are the viewer comments that scroll over it, fetched per segment; the transcript is speech-to-text produced as a submit-then-fetch task. All three are available and answer different questions.
Only what is publicly reachable is available. A separate route returns the play URL for VIP titles, but access still depends on what Bilibili serves for that video at request time.