Justcaptions

Last 30 days

Uptime

100%

Response time

297 ms typical, 297 ms slowest 5%

Last check

6 h ago

Next check

in 54 min

How to call it

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "justcaptions": {
      "type": "http",
      "url": "https://api.justcaptions.com/mcp"
    }
  }
}

9 tools

• list_styles

  List 15 local rendering presets, aliases, style overrides and platform safe areas. This remote server returns the catalog; render via the local MCP.

• list_fonts

  List named font IDs, licenses and script coverage. Pass font_id in local rendering overrides; no cloud video rendering.

• get_pricing

  Current API prices and monthly free allowances, no key needed.

• get_usage

  Current usage, estimated bill and monthly spend cap for your configured API key.

• estimate_cost

  Estimate additional cloud charges and available allowance before a batch. Includes active budget holds; does not reserve credit.

• 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.

• correct_captions

  Correct caption text, preserving caption count and order. Does not realign word timing. Billed by input characters.

• translate_captions

  Translate caption lines, preserving count and order. Target-language word timing is estimated by the local renderer. Billed by input characters.

• pick_emojis

  Pick one emoji for each caption. Billed by input characters.

Security scan

• No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

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