---
tool_name: video-cover-maker
summary: Pick the best frame, add your title, export 16:9 + 9:16 + 1:1 covers in one zip — ready for every platform.
input:
  file: binary, required # video file (MP4/MOV/MKV/AVI/WEBM) (max 500MB)
  title: string, required, max 60 # 主标题
  subtitle: string, optional, max 80 # 副标题（选填）
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://video-cover-maker.yeezhan.com; API callers use a personal API key (Bearer yeek_...)
payment_rule: one-time charge $0.99 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://video-cover-maker.yeezhan.com/api/v1/run
---