Convert, clean, retime and validate SRT, WebVTT, ASS/SSA, SBV and TTML subtitles. 8 tools.
Connect Remote server
claude mcp add --transport http subtitle-toolkit https://subtitle-mcp.toolboxes.top/mcp
{
"mcpServers": {
"subtitle-toolkit": {
"url": "https://subtitle-mcp.toolboxes.top/mcp"
}
}
}
{
"servers": {
"subtitle-toolkit": {
"type": "http",
"url": "https://subtitle-mcp.toolboxes.top/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://subtitle-mcp.toolboxes.top/mcp
Tools 8 found in our last check
convert_subtitleConvert subtitle text between formats. Reads SRT, WebVTT, ASS/SSA, YouTube SBV and TTML/DFXP; writes SRT, WebVTT, ASS, CSV or plain text. Format is auto-detected unless `from` is given.
clean_subtitlesStrip noise from auto-generated subtitles: HTML/WebVTT tags, ASS override codes, music and sound-effect cues, speaker labels, empty cues and duplicate lines. Returns the subtitle file in SRT or WebVTT.
retime_subtitlesFix subtitle timing. Use offset_seconds for a uniform shift (whole track early/late). Use ratio, or from_fps/to_fps, for progressive drift caused by a frame-rate mismatch. Pass exactly one of the three.
check_subtitle_timingAudit subtitle readability and produce a report: reading speed (CPS), cue durations that are too short or too long, lines that are too wide, more than two lines, and overlapping cues. Returns a formatted report listing every flagged cue.
merge_subtitlesAppend one subtitle track after another (CD1 + CD2, or a second language track). The second track is offset so it starts after the last cue of the first, plus an optional gap.
split_subtitlesSplit one subtitle track into two parts at a given timecode, keeping original timecodes. Use the `at` argument plus `part` to fetch either half.
fix_subtitle_encodingRepair mojibake — text where UTF-8 bytes were decoded as a single-byte encoding (cp1252/Latin-1 or cp1251). Symptoms: "é", "’", "привет". Returns the repaired text and how many passes were applied.
text_to_subtitlesTurn a plain transcript (one line per caption) into an SRT file with evenly spaced timecodes. Timing is a starting point, not a real transcription — say so when you present the result.
Details
| Endpoint | https://subtitle-mcp.toolboxes.top/mcp (Streamable HTTP) |
| First published | 22 Sep 2026 |
| Last updated | 22 Sep 2026 |
| Registry name | top.toolboxes/subtitle-toolkit |
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