Professional Video Processing.
One API Call Away.

Add subtitles, voiceovers, and watermarks to videos through a simple API. Built for AI agents and developers.

⚡ 10-second processing 🌍 Global CDN delivery 🔐 Secure & private

Two Paths. One Result.

🎬

Path A: Bring Your Own Assets

Upload your video + subtitle file (SRT/ASS) + audio (MP3/WAV). We merge everything into a polished final product.

Video + Subtitle + Audio Final MP4
🎤

Path B: Just Text, We Do the Rest

Upload video + text. Our AI generates natural voiceover and perfectly-timed subtitles automatically.

Video + Text TTS Audio + ASS Subs Final MP4
Multiple formats — MP4, MOV, AVI, MKV, WebM
Watermarks — Text or image, any position & opacity
Platform presets — Douyin, Xiaohongshu, Bilibili, WeChat
Global CDN — Cloudflare R2, zero egress fees

Simple, Transparent Pricing

Pay only for what you use. No subscriptions required.

Basic Plan

$4.90/month

30 minutes/month ($0.16/min)

  • ✓ 30 minutes per month
  • ✓ All features included
  • ✓ Rollover unused minutes
  • ✓ Email support
Coming Soon

Pro Plan

$14.90/month

150 minutes/month ($0.10/min)

  • ✓ 150 minutes per month
  • ✓ All features included
  • ✓ Priority processing
  • ✓ Priority support
  • ✓ Overage at $0.12/min
Coming Soon

How It Works

1

Get Your Key

Purchase credits and receive a License Key instantly.

2

Install the Skill

Install agent-video-skk from ClawHub. Configure your Key.

3

Submit a Task

Tell your agent what you need: "Add Chinese subtitles to this video with AI voiceover."

4

Download Result

Your processed video is ready in minutes. Download via global CDN.

Frequently Asked Questions

What video formats are supported?

We support MP4, MOV, AVI, MKV, and WebM as input. Output is always MP4 with H.264 encoding, universally compatible.

How long does processing take?

Typically 1-2x the video duration. A 1-minute video processes in about 1-2 minutes. Complex effects may take slightly longer.

What happens if processing fails?

You are never charged for failed tasks. Credits are automatically refunded to your balance.

Is there a file size limit?

Individual files up to 500MB, videos up to 10 minutes. Perfect for short-form content and social media videos.

Do credits expire?

Pay-as-you-go credits never expire. Monthly plan minutes roll over to the next month.

How does TTS voiceover work?

Provide text content and we generate natural-sounding AI voiceover using Edge TTS, with perfectly timed ASS subtitles. Supports Chinese and other languages.

What is ClawHub?

ClawHub is the skill marketplace for OpenClaw AI agents. Our Skill lets any OpenClaw agent process videos through natural language commands.

Can I use the API directly without the Skill?

Yes! Our REST API is fully documented. You can integrate it into any application or workflow.

Ready to Process Your First Video?

Start with as little as $1. Credits never expire.

Get Started Now