What is the ASR fallback feature?

If a video has no built-in subtitles, the server can automatically download the audio and generate subtitles using OpenAI Whisper. This is enabled or disabled via the `[asr]` config section or the `--asr`/`--no-asr` flags.

What output formats are available?

Two formats: `text` (plain subtitle text) and `timestamped` (subtitle content with timestamps). The default can be overridden with `--output-format`.

SSyncDev

Start a project

Bilibili Subtitle Fetch MCP Server

MCP server for fetching Bilibili video subtitles with language and format options.

Local serverstdioPython

What is the Bilibili Subtitle Fetch MCP Server?

MCP server for fetching Bilibili video subtitles with language and format options.

The short version

首次使用时执行 bilibili-subtitle-fetch init，然后粘贴你的 Bilibili Cookie。

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
sessdata	访问需要登录态的字幕接口时必需
bili_jct	自动刷新时必需
ac_time_value	自动刷新时必需
enable_asr	是否开启 ASR 回退 (true/false)。开启后，如果视频未提供自带字幕，程序会自动下载音频并生成字幕。
model_size	Whisper 模型大小，默认为 base。也可以选用 tiny、small 等。

Example prompts to try

“Use Bilibili Subtitle Fetch to Windows.”
“Use Bilibili Subtitle Fetch to sessdata.”
“Use Bilibili Subtitle Fetch to bili jct.”

Frequently asked questions

Run `bilibili-subtitle-fetch init` and paste your Bilibili cookie. The configuration is saved to `~/.config/bilibili-subtitle-fetch/config.toml` (Linux/macOS) or `%APPDATA%\bilibili-subtitle-fetch\config.toml` (Windows).