An MCP server that fetches video transcripts/subtitles via yt-dlp, with pagination for large responses. Supports YouTube, Twitter/X, Instagram, TikTok, Twitch, Vimeo, Facebook, Bilibili, VK, Dailymotion, Reddit. Whisper fallback — transcribes audio when subtitles are unavailable.
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Install from
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Fastify has a Body Schema Validation Bypass via Leading Space in Content-Type Header
fastify: request.protocol and request.host Spoofable via X-Forwarded-Proto/Host from Untrusted Connections
Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation
process.env. You'll be asked to provide them before it can run.APPBASE_URLCACHE_MODE— Redis caching — Cache subtitles and metadata to reduce yt-dlp calls. Configure via =redis and CACHE_REDIS_URL.CACHE_REDIS_URL— Redis caching — Cache subtitles and metadata to reduce yt-dlp calls. Configure via CACHE_MODE=redis and .CACHE_TTL_METADATA_SECONDSCACHE_TTL_SUBTITLES_SECONDSCOOKIES_FILE_PATH— an authenticated cookies.txt file and the environment variable.CORS_ALLOWED_ORIGINSHOST— If you change PORT / , adjust the URL accordingly, e.g. http://<HOST>:<PORT>/docs.LOAD_BASE_URLLOG_LEVELRATE_LIMIT_TIME_WINDOWSENTRY_DSNSENTRY_ENVIRONMENTSENTRY_RELEASESENTRY_SEND_DEFAULT_PIISENTRY_TRACES_SAMPLE_RATETEST_PARSE_INTWHISPER_API_BASE_URLWHISPER_API_KEY— Whisper fallback — When native subtitles are unavailable, transcribe video audio via Whisper (local self-hosted or OpenAI API). Configure via WHISPER_MODE, WHISPER_BASE_URL, , etc.WHISPER_BACKGROUND_TIMEOUTWHISPER_BASE_URL— Whisper fallback — When native subtitles are unavailable, transcribe video audio via Whisper (local self-hosted or OpenAI API). Configure via WHISPER_MODE, , WHISPER_API_KEY, etc.WHISPER_MODE— Whisper fallback — When native subtitles are unavailable, transcribe video audio via Whisper (local self-hosted or OpenAI API). Configure via , WHISPER_BASE_URL, WHISPER_API_KEY, etc.WHISPER_TIMEOUTYT_DLP_AGE_LIMITYT_DLP_AUDIO_BUFFER_SIZEYT_DLP_AUDIO_CONCURRENT_FRAGMENTSYT_DLP_AUDIO_DOWNLOADERYT_DLP_AUDIO_DOWNLOADER_ARGSYT_DLP_AUDIO_FORMATYT_DLP_AUDIO_FRAGMENT_RETRIESYT_DLP_AUDIO_HTTP_CHUNK_SIZEYT_DLP_AUDIO_LIMIT_RATEYT_DLP_AUDIO_QUALITYYT_DLP_AUDIO_RETRIESYT_DLP_AUDIO_RETRY_SLEEPYT_DLP_AUDIO_THROTTLED_RATEYT_DLP_AUDIO_TIMEOUTYT_DLP_DOWNLOAD_ARCHIVEYT_DLP_ENCODINGYT_DLP_EXTRA_ARGSYT_DLP_FRAME_TIMEOUT— Timeout is controlled by (falls back to YT_DLP_TIMEOUT, default 60000 ms).YT_DLP_IGNORE_NO_FORMATSYT_DLP_JS_RUNTIMESYT_DLP_MAX_FILESIZEYT_DLP_MAX_SLEEP_INTERVALYT_DLP_NO_WARNINGSYT_DLP_PLAYLIST_IGNORE_ERRORSYT_DLP_PROXYYT_DLP_REMOTE_COMPONENTSYT_DLP_REQUIREDYT_DLP_RETRIESYT_DLP_RETRY_SLEEPYT_DLP_SKIP_VERSION_CHECKYT_DLP_SLEEP_INTERVALYT_DLP_SLEEP_REQUESTSYT_DLP_SLEEP_SUBTITLESYT_DLP_SUB_FORMATYT_DLP_TIMEOUT— Timeout is controlled by YT_DLP_FRAME_TIMEOUT (falls back to , default 60000 ms).YT_DLP_VERBOSE_ON_ERROR[](https://m8ven.ai/mcp/samson-art-transcriptor-mcp-tgg1yn)