An AI-powered skill for Openclaw Skills that automatically generates high-quality captions and subtitles for video content using cloud-based GPU rendering.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install caption-generator-in-video
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install caption-generator-in-video using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Caption Generator in Video?
The Caption Generator in Video is a robust tool designed for creators who need fast, accurate subtitles without local processing overhead. By leveraging cloud GPUs, this skill allows users to transform raw video files like MP4, MOV, and WebM into polished, captioned content in under a minute.
Whether you are a YouTuber, TikToker, or digital marketer, integrating this into your Openclaw Skills workflow ensures your videos are accessible and SEO-friendly. It supports 1080p exports and handles files up to 500MB, making it ideal for everything from quick social clips to long-form tutorials.
Caption Generator in Video Use Cases
- Automatically generating English and Spanish captions for social media videos.
- Exporting 1080p MP4 files with hardcoded subtitles for platform compatibility.
- Batch processing multiple video files in a single session for efficient content creation.
- Adding text overlays and BGM to tutorial videos via simple natural language prompts.
- Iteratively refining video tracks and metadata before a final cloud render.
How Caption Generator in Video Works
- Initialize a session by authenticating with a NEMO_TOKEN or generating a free anonymous token for Openclaw Skills.
- Upload video files to the secure cloud processing endpoint for analysis.
- Use natural language commands to trigger AI subtitle generation and track editing via SSE (Server-Sent Events).
- Monitor the cloud GPU render pipeline as it composites layers and applies H.264 compression.
- Poll the export status and download the final 1080p MP4 via the provided URL.
Caption Generator in Video Setup
To use this within the Openclaw Skills ecosystem, ensure your environment is configured properly.
# Set your authentication token
export NEMO_TOKEN="your_token_here"
# The configuration is stored in ~/.config/nemovideo/
The skill requires the NEMO_TOKEN for API access. New users can generate an anonymous token with 100 credits to get started immediately, which expires after 7 days.
Caption Generator in Video Data Schema & Taxonomy
The skill uses a structured draft JSON format to manage video timelines and metadata.
| Key | Description |
|---|---|
t |
Tracks list (Video, Audio, Text) |
tt |
Track Type (0: Video, 1: Audio, 7: Text/Captions) |
sg |
Segments within the track |
d |
Duration in milliseconds |
m |
Metadata and positioning information |
session_id |
Unique identifier for the current editing project |
Caption Generator in Video Advanced Features
- Multi-language support for simultaneous caption generation in different languages.
- Real-time status tracking via Server-Sent Events (SSE) for complex editing tasks within Openclaw Skills.
- Intelligent backend response translation that converts GUI commands into actionable API requests.
- Automated credit management and session persistence across multiple user interactions.
- High-speed H.264 cloud rendering optimized for mobile and web viewing standards.
SKILL.md
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