Justcaptions
Audio transcription, caption correction, translation and 16 video caption styles.
Connect it
Settings → Connectors → Add custom connector
URL: https://api.justcaptions.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://api.justcaptions.com/mcp{
"mcpServers": {
"justcaptions": {
"url": "https://api.justcaptions.com/mcp",
"headers": {
"Authorization": "<YOUR_AUTHORIZATION>"
}
}
}
}claude mcp add --transport http justcaptions https://api.justcaptions.com/mcp --header "Authorization: <value>"{
"servers": {
"justcaptions": {
"type": "http",
"url": "https://api.justcaptions.com/mcp",
"headers": {
"Authorization": "<YOUR_AUTHORIZATION>"
}
}
}
}9 tools, verified live
list_stylesread-onlyList 16 local rendering presets, aliases, style overrides and platform safe areas. This remote server returns the catalog; render via the local MCP.
list_fontsread-onlyList named font IDs, licenses and script coverage. Pass font_id in local rendering overrides; no cloud video rendering.
get_pricingread-onlyCurrent API prices and monthly free allowances, no key needed.
get_usageread-onlyCurrent usage, estimated bill and monthly spend cap for your configured API key.
estimate_costread-onlyEstimate additional cloud charges and available allowance before a batch. Includes active budget holds; does not reserve credit.
transcribe_audioTranscribe extracted audio into segments and word timestamps. Max 12 MB decoded. Never send video. Charged by audio duration past the free allowance.
correct_captionsCorrect caption text, preserving caption count and order. Does not realign word timing. Billed by input characters.
translate_captionsTranslate caption lines, preserving count and order. Target-language word timing is estimated by the local renderer. Billed by input characters.
pick_emojisPick one emoji for each caption. Billed by input characters.
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