justcaptions

io.github.SpaceSheepBoy/justcaptionsVersion 1.5.1

Audio transcription, caption correction, translation and 16 video caption styles.

Status

Responds188 msNov 14, 2026, 14:42 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 14:42 UTC
Latency: 188 ms
Remotes responding: 1 of 1
Sign-in: API key
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 21:12 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://api.justcaptions.com/mcpResponds188 msNov 14, 2026, 14:42 UTC

No sign-in

Claude Code

claude mcp add --transport http justcaptions https://api.justcaptions.com/mcp --header 'Authorization: Bearer <YOUR_TOKEN>'

Replace <YOUR_TOKEN> before running.

Claude Desktop and claude.ai

Settings > Connectors > Add custom connector
Name: justcaptions
Remote MCP server URL: https://api.justcaptions.com/mcp
This server expects the header Authorization.

Cursor

{
  "mcpServers": {
    "justcaptions": {
      "url": "https://api.justcaptions.com/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

Replace <YOUR_TOKEN> before running.

VS Code

code --add-mcp '{"name":"justcaptions","type":"http","url":"https://api.justcaptions.com/mcp","headers":{"Authorization":"Bearer <YOUR_TOKEN>"}}'

Replace <YOUR_TOKEN> before running.

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Tools

9 tools

Tools of justcaptions
	Description		Read-only	Idempotent	Open world
`correct_captions`Correct caption text, preserving caption count and order. Does not realign word timing. Billed by input characters.	Correct caption text, preserving caption count and order. Does not realign word timing. Billed by input characters.	No	No	No	Yes
`estimate_cost`Estimate additional cloud charges and available allowance before a batch. Includes active budget holds; does not reserve credit.	Estimate additional cloud charges and available allowance before a batch. Includes active budget holds; does not reserve credit.	No	Yes	Yes	Not declared
`get_pricing`Current API prices and monthly free allowances, no key needed.	Current API prices and monthly free allowances, no key needed.	No	Yes	Yes	Not declared
`get_usage`Current usage, estimated bill and monthly spend cap for your configured API key.	Current usage, estimated bill and monthly spend cap for your configured API key.	No	Yes	Yes	Not declared
`list_fonts`List named font IDs, licenses and script coverage. Pass font_id in local rendering overrides; no cloud video rendering.	List named font IDs, licenses and script coverage. Pass font_id in local rendering overrides; no cloud video rendering.	No	Yes	Yes	Not declared
`list_styles`List 16 local rendering presets, aliases, style overrides and platform safe areas. This remote server returns the catalog; render via the local MCP.	List 16 local rendering presets, aliases, style overrides and platform safe areas. This remote server returns the catalog; render via the local MCP.	No	Yes	Yes	Not declared
`pick_emojis`Pick one emoji for each caption. Billed by input characters.	Pick one emoji for each caption. Billed by input characters.	No	No	No	Yes
`transcribe_audio`Transcribe extracted audio into segments and word timestamps. Max 12 MB decoded. Never send video. Charged by audio duration past the free allowance.	Transcribe extracted audio into segments and word timestamps. Max 12 MB decoded. Never send video. Charged by audio duration past the free allowance.	No	No	No	Yes
`translate_captions`Translate caption lines, preserving count and order. Target-language word timing is estimated by the local renderer. Billed by input characters.	Translate caption lines, preserving count and order. Target-language word timing is estimated by the local renderer. Billed by input characters.	No	No	No	Yes

Details

Registry status: Active
Published: Oct 14, 2026
Updated: Oct 14, 2026
Website: https://justcaptions.com/agents/⁠ (opens in a new tab)
Repository: https://github.com/SpaceSheepBoy/justcaptions-skill⁠ (opens in a new tab)
Categories (suggested): Design and mediaSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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