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YouTube Video Captions API (V1)

justoneapi_get_api_youtube_get_video_captions_v1

Retrieve available caption tracks for a YouTube video or request captions in SRT, XML, JSON3, or plain-text format. Use it to support transcription, accessibility, localization, or text analysis. Uses the caller's OpenAny gateway credentials. Charges and authorization are determined by the gateway.

Input Schema

NameRequiredDescriptionDefault
formatNoCaption output format. Available Values: - `srt`: SubRip caption format with timeline cues - `xml`: Original XML caption format - `json3`: YouTube original JSON caption structure - `txt`: Plain text without timeline cues
videoIdYesThe unique identifier for a YouTube video.
languageCodeNoCaption language code, such as en, zh-Hans, or a.en. Leave it empty to retrieve available caption tracks.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

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