MCP server

Caption File Check

com.powmcp/caption-file-check

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Parse WebVTT, SRT, or TTML for conformance, timing, overlaps, line length, and reading speed.

Working at last checkVerified publisher: powmcp.comAbout 2,178 tokens per request once connected2 tools

https://powmcp.com/caption-file-check/mcp

At a glance

Type: MCP server
Publisher: powmcp.com (verified by the MCP Registry)
Status: Working at last check
Tools: 2
Token cost: About 2,178 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http caption-file-check https://powmcp.com/caption-file-check/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.caption-file-check]
url = "https://powmcp.com/caption-file-check/mcp"

Gemini CLI

{"mcpServers":{"caption-file-check":{"httpUrl":"https://powmcp.com/caption-file-check/mcp"}}}

Cursor

{"mcpServers":{"caption-file-check":{"url":"https://powmcp.com/caption-file-check/mcp"}}}

VS Code

{"servers":{"caption-file-check":{"type":"http","url":"https://powmcp.com/caption-file-check/mcp"}}}

Antigravity

agy mcp add caption-file-check https://powmcp.com/caption-file-check/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"caption-file-check","server_url":"https://powmcp.com/caption-file-check/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"caption-file-check","server_url":"https://powmcp.com/caption-file-check/mcp"}

caption_check ~1130 tokens
Preflight 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
caption_compare ~1048 tokens
Compare 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-gua

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