Trim and Cut Clips
Precisely trim video footage and extract the best segments without opening heavy editing software.
Add Captions and Subtitles
Automatically transcribe video audio and burn in captions or subtitles for accessibility and engagement.
Quick answer: Use the Video Editor tool through ToolRouter to add captions and subtitles directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolCaptions are no longer optional. Most social media videos are watched with sound off, accessibility requirements mandate captions, and search engines can index caption text for better discoverability. But manually transcribing and timing captions is tedious and error-prone.
ToolRouter's transcribe_video skill automatically generates accurate transcriptions with precise timestamps. Then edit_footage burns the captions directly into the video with your choice of styling — font, size, position, and color. The result is a captioned video ready for any platform without manual transcription or SRT file management.
This is critical for social media content creators who need captions for muted autoplay, businesses meeting accessibility compliance requirements, and international brands creating subtitled versions of their content for different markets.
How to add captions and subtitles with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Connect ToolRouter
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Claude handles the full captioning workflow -- transcription, review, and burn-in -- as a multi-step conversation in your terminal. Review the auto-generated transcript, ask Claude to correct specific terms, choose your caption styling, and produce the final captioned video through iterative dialogue. This end-to-end approach ensures accuracy before permanent caption embedding.
How to add captions and subtitles
Once connected (see setup above), use the Video Editor tool — the same steps work with Claude, ChatGPT, Microsoft Copilot, OpenClaw, and any MCP client:
- Start with transcription: "Transcribe this video and generate captions"
- Claude runs transcribe_video and returns the timestamped transcript
- Burn in the captions: "Add these captions to the video with white text on a semi-transparent black bar"
- Claude uses edit_footage to embed the captions directly into the video
Example prompt
Try this with the Video Editor tool
Transcribe this interview video and add burned-in captions. Use bold white text with a dark background strip at the bottom. Make the text large enough for mobile viewing.
Tips
- Ask Claude to review and correct the transcription before burning in captions
- Specify caption styling to match your brand — font, color, position, size
- Generate both embedded captions and a separate SRT file for platform uploads
Frequently Asked Questions
How do I add captions and subtitles with an AI assistant?
Automatically transcribe video audio and burn in captions or subtitles for accessibility and engagement. Connect the Video Editor tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Start with transcription: "Transcribe this video and generate captions" Claude runs transcribe_video and returns the timestamped transcript
Which AI assistants can add captions and subtitles?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all add captions and subtitles using the Video Editor tool through ToolRouter, with no API keys or coding required.
What does the Video Editor tool do?
Edit, transform, and enhance video content with AI-powered tools for trimming, captioning, merging, and professional post-production.
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