Caption File Check
Parse WebVTT, SRT, or TTML for conformance, timing, overlaps, line length, and reading speed.
Connect it
Settings → Connectors → Add custom connector
URL: https://powmcp.com/caption-file-check/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://powmcp.com/caption-file-check/mcp{
"mcpServers": {
"caption-file-check": {
"url": "https://powmcp.com/caption-file-check/mcp"
}
}
}claude mcp add --transport http caption-file-check https://powmcp.com/caption-file-check/mcp{
"servers": {
"caption-file-check": {
"type": "http",
"url": "https://powmcp.com/caption-file-check/mcp"
}
}
}2 tools, verified live
caption_checkread-onlyPreflight one caption or subtitle file before delivery. Attach a WebVTT (.vtt), SRT (.srt), or TTML/IMSC (.ttml/.xml) caption file in chat or give a publicly fetchable URL and it downloads the artifact under an SSRF-guarded, 2 MB-capped fetch, detects the format by content and the byte encoding and BOM, then parses it with the real spec engine (the WebVTT spec parser, a dedicated SRT parser, or th
caption_compareread-onlyCompare exactly two caption or subtitle files under identical bounded checks: an original versus its translated track, before versus after a timing fix, or a format migration. Attach two WebVTT, SRT, or TTML/IMSC caption files in chat or give two publicly fetchable URLs and it runs the same SSRF-guarded, 2 MB-capped preflight as caption_check on each, then aligns them by cue index and reports side
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