io.github.markksantos/caption-checker
Caption Checker
Is the Caption Checker MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-01.
Check, fix, convert and retime SRT and WebVTT captions against Netflix, BBC and DCMP limits.
alive probed 2026-11-14 · unchanged since 2026-11-01
- Bundle
- https://github.com/markksantos/caption-checker/releases/download/v1.3.3/caption-checker-1.3.3.mcpb (MCPB, for a client that installs bundles; probed in a container with the network off)
- Host
- github.com
- Reports itself as
- caption-checker 1.3.3
- Capabilities
- tools
- Instructions
- 224 characters
- Of a 1M window
- 0.2 % of a 1M context window
- Count
- 2.3k tokens in Claude Opus 5.5, exact, measured 2026-10-30. With the Claude Code prefix mcp__…__ on each tool name: 2.3k. The o200k_base estimate is 1.4k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/markksantos/caption-checker
- Website
- https://www.markstudios.com/tools/caption-checker
- Registry
- active, updated 2026-11-01 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.64×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| retime_captions | 839 | 512 | 37 % |
| convert_captions | 472 | 288 | 21 % |
| fix_captions | 449 | 274 | 20 % |
| check_captions | 418 | 255 | 19 % |
| list_standards | 80 | 49 | 4 % |
Compare this server with others.
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Servers that mention caption.
- AI Media Studio ai.b77/ai-media-studio · needs auth
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- OpenClip app.openclip/openclip · needs auth
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Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.