mcpcost

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

5tools
2.3ktokens in Claude Opus 5.5
1.1 %of Claude's 200k window
0.9×the median server
85 msto initialize
3 msto list tools
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 tokenso200k estimateShare of this server
retime_captions83951237 %
convert_captions47228821 %
fix_captions44927420 %
check_captions41825519 %
list_standards80494 %

Compare this server with others.

More servers

Other registry entries on github.com, the ones next to this name; all of them.

Servers that mention caption.

Badge for the README

mcpcost: alive

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Atom feed

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