Subtitle Toolkit MCP Server

by toolboxes Your server? Claim it

answering

Subtitle Toolkit is answering right now. Last checked 6 min ago. It exposes 8 tools.

Convert, clean, retime and validate SRT, WebVTT, ASS/SSA, SBV and TTML subtitles. 8 tools.

Uptime history 49 days of history · worst day 95%

49 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

122 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Subtitle Toolkit every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add subtitle-toolkit --transport http https://subtitle-mcp.toolboxes.top/mcp

Settings → Connectors → Add custom connector, then paste this address

https://subtitle-mcp.toolboxes.top/mcp

~/.codex/config.toml

[mcp_servers.subtitle-toolkit]
url = "https://subtitle-mcp.toolboxes.top/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "subtitle-toolkit": {
      "url": "https://subtitle-mcp.toolboxes.top/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "subtitle-toolkit": {
      "type": "http",
      "url": "https://subtitle-mcp.toolboxes.top/mcp"
    }
  }
}

Available tools 8

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

clean

clean_subtitles

Strip 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.

convert

convert_subtitle

Convert 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.

fix

fix_subtitle_encoding

Repair mojibake — text where UTF-8 bytes were decoded as a single-byte encoding (cp1252/Latin-1 or cp1251). Symptoms: "Ã©", "â€™", "Ð¿Ñ€Ð¸Ð²ÐµÑ‚". Returns the repaired text and how many passes were applied.

merge

merge_subtitles

Append 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.

retime

retime_subtitles

Fix 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.

split

split_subtitles

Split one subtitle track into two parts at a given timecode, keeping original timecodes. Use the `at` argument plus `part` to fetch either half.

subtitle

check_subtitle_timing

Audit 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.

text

text_to_subtitles

Turn 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.

Endpoints

URL	Transport	State	Latency	Checked
https://subtitle-mcp.toolboxes.top/mcp	streamable-http	answering	127 ms	6 min ago

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Subtitle Toolkit — questions

Answers built from our own checks of this server.

What can Subtitle Toolkit do?

It exposes 8 tools, read directly from the server on our last check. Among them: check_subtitle_timing, clean_subtitles, convert_subtitle, fix_subtitle_encoding, merge_subtitles, retime_subtitles and 2 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Subtitle Toolkit working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 122 ms. The bar chart above shows every period we have measured.

How do I connect Subtitle Toolkit?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Subtitle Toolkit need an API key?

No. Subtitle Toolkit completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Subtitle Toolkit?

It answers our handshake in 122 ms on average, which is faster than 89% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.