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
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.
Connect ToolRouter to Claude
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
How to add captions and subtitles with Claude
Once connected (see setup above), use the Video Editor tool:
- 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 for Claude
Try this with Claude using 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 for Claude
- 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
ChatGPT makes captioning conversational by combining transcription with editorial review in one chat. Preview the transcript, correct industry-specific terminology through natural dialogue, and choose caption styling before burning them in. ChatGPT can also produce translated subtitles in multiple languages from the same source transcript.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
How to add captions and subtitles with ChatGPT
Once connected (see setup above), use the Video Editor tool:
- Ask: "Transcribe this video and add captions"
- ChatGPT transcribes the audio and presents the text for review
- Approve or edit: "Fix the company name spelling and add the captions to the video"
- Request specific styling for the burned-in captions
Example prompt for ChatGPT
Try this with ChatGPT using the Video Editor tool
Transcribe this product demo video and add professional subtitles. Use a modern sans-serif font, centered at the bottom, with a slight drop shadow for readability.
Tips for ChatGPT
- ChatGPT can correct industry-specific terminology in the transcription
- Ask for caption files in SRT, VTT, or ASS formats for different platforms
- Request translated subtitles for international audiences
Copilot adds captions to videos directly in your development environment, which is valuable for developer content where technical terms need accurate transcription. Copilot can differentiate code terminology from regular speech and generate caption files in multiple formats -- SRT, VTT, ASS -- alongside the captioned video.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
How to add captions and subtitles with Copilot
Once connected (see setup above), use the Video Editor tool:
- In Copilot Chat: "Transcribe and caption this tutorial video"
- Copilot generates the transcription via ToolRouter
- Burn in the captions: "Add subtitles with monospace font for the coding sections"
- Save the captioned video to your project
Example prompt for Copilot
Try this with Copilot using the Video Editor tool
Transcribe my coding tutorial video and add captions. Use a monospace font for code-related dialogue and a regular font for explanations. Bottom-center positioning.
Tips for Copilot
- Copilot can differentiate code terminology from regular speech in transcriptions
- Generate VTT files alongside the captioned video for HTML5 video players
- Caption your conference talk recordings for more accessible documentation
OpenClaw automates the captioning pipeline for batch video processing. Transcribe, review, and burn in captions across multiple videos with consistent styling in one automated session. This structured approach is essential for teams publishing content at scale who need every video captioned with the same brand-standard formatting.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsHow to add captions and subtitles with OpenClaw
Once connected (see setup above), use the Video Editor tool:
- Provide the video: "Transcribe and add captions to this webinar recording"
- OpenClaw transcribes the audio and generates captions
- Customize: "Use yellow text on a black bar for better visibility"
- Process multiple videos with consistent caption styling
Example prompt for OpenClaw
Try this with OpenClaw using the Video Editor tool
Transcribe this webinar recording and add burned-in subtitles. Use yellow text on a semi-transparent dark background. Position at the lower third of the frame.
Tips for OpenClaw
- Batch-caption multiple videos with consistent styling in one session
- Ask OpenClaw to generate captions in multiple languages for international content
- Verify transcription accuracy before burning in captions permanently
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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