---
tool_name: ai-video-watermark-remove
summary: Repair corner stamps on footage you own — four position presets plus custom regions, one pass.
input:
  file: binary, required # video file (MP4/MOV/MKV/AVI/WEBM) (max 500MB)
  corner: enum, required # 角标位置预设
  regions: string, optional, max 200 # 自定义区域（可选，优先于预设）
output:
  preview_url: string | watermarked preview, free, no auth
  task_id: string | unique task identifier
  payment_url: string | end-user must complete one-time payment to unlock final output
  final_download_url: string | only available after successful payment
auth: login via email/phone OTP on https://ai-video-watermark-remove.yeezhan.com; API callers use a personal API key (Bearer yeek_...)
payment_rule: one-time charge $1.99 per task. NO credits, NO account balance. One payment unlocks only this task.
valid_window: 24 hours after payment
errors:
  - file_too_large
  - invalid_input
  - unsupported_type
  - target_unreachable
  - processing_failed
endpoint: https://ai-video-watermark-remove.yeezhan.com/api/v1/run
---