Sponge: Kling 2.1 Standard - List Tasks

Use this endpoint when you need to poll or monitor the status of previously submitted Kling 2.1 Standard image-to-video generation tasks through the Sponge x402 gateway. Prefer this over alternatives when you are already using the Sponge/paysponge.com infrastructure for Kling jobs, or when you need a lightweight status-check call (GET, no side effects) to determine if async video generation tasks have completed.

• No tasks found — returns empty list if no jobs have been submitted
• Authentication/payment failure — x402 payment not accepted or insufficient funds
• Rate limiting — too many polling requests in a short window
• Gateway error — paysponge.com proxy unavailable or Freepik/Kling backend down
• Invalid query parameters — returns 400 if unsupported params are passed