auto-captions-subtitles

Auto Captions and Subtitles

Generate synchronized word-by-word animated captions and translated subtitles for video timelines.

Setup

This skill calls the Levea (livecore.ai) editing service, which requires a Levea account and API key.

1. Sign up and generate an API key at https://livecore.ai/?openclaw=1&utm_source=clawhub&utm_medium=skill&utm_campaign=auto-captions-subtitles
2. Provide the key to the tool you use:
   • OpenClaw plugin openclaw-ai-video-editor (ClawHub): set apiKey in the plugin config.
   • MCP server levea-mcp-server (npm): set LEVEA_API_KEY in the MCP server config. LEVEA_API_URL is optional and defaults to https://api.livecore.ai.
3. Describe the edit you want in plain language; the tool returns a project ID and, after export, an MP4 URL.

When to use

• Generating word-level synchronized captions from a video audio track.
• Styling subtitles with built-in typography presets such as karaoke or pill highlights.
• Translating timeline captions into another language.

Tool interface

Use the registered ai-video-editor (OpenClaw plugin) or autonomous_edit (MCP server) tool to run edits against a project timeline.

Tool parameters

• prompt (string, required): Description of the video edit to perform.
• project_id (string, optional): Project identifier returned by a prior call for multi-turn continuity.
• video_url (string, optional): Source video URL when starting a new project.
• captionTemplatePreset (string, optional): Built-in caption style slug (for example hormozi, viral-pop, karaoke, minimal-pro).
• captionTemplateMode (string, optional): One of add, recreate, style, translate, clear, remove_fillers.
• requirePlanApproval (boolean, optional): When true, pauses after planning and returns workingMemory for user confirmation.
• workingMemory (object, optional): State object from a paused plan-approval call.

Example tool input

{
  "prompt": "Generate word-by-word captions at the bottom of the frame using the viral-pop preset.",
  "project_id": "project_example_01"
}