Kuaishou Kling AI

Separate the platform from this site

Kling AI is Kuaishou's image and video generation platform. Direct Kling calls and calls through this site use different credentials: direct calls follow Kling's JWT rules, while this site's /v1/videos route uses this site's token and represents only the unified video workflow adapted here. A feature in the consumer UI is not proof that either API exposes it; confirm the exact model and route in the model marketplace.

Direct authentication does not put the AK or SK in Bearer

Obtain an Access Key (AK) and Secret Key (SK) in the Kling console, use them to sign a short-lived JWT according to RFC 7519, and then send Authorization: Bearer <JWT>. Keep the SK only in a server-side secret manager; never commit it, expose it to a browser, log it, or reuse an expiring token indefinitely. This site's token cannot authenticate direct Kling calls, and Kling AK/SK values cannot authenticate this site directly.

Persist two different identifiers

The request_id returned by creation identifies the HTTP request for tracing and support. The task_id identifies the generation job and is the value used to retrieve progress and results. Persist both with the creation time, model, and redacted parameters, and never place request_id in the task-query path. Job status is submitted, processing, succeed, or failed: the first two are in progress and the last two are terminal.

Poll with explicit bounds

Poll the task endpoint with task_id, bounded exponential backoff plus jitter, a maximum attempt count, a total deadline, and cancellation. Read output only after succeed; on failed, preserve the error and request_id, because parameter or moderation failures are not repaired by infinite retry. Copy result media promptly into controlled storage instead of treating a provider URL as permanent.

Cost, limits, and safety

Validate asset type, size, aspect ratio, duration, and model support before submission. Keep an idempotency record for each business request so timeout retries do not create and bill duplicate jobs. Check JWT and permissions for 401/403, reduce creation and polling pressure for 429, and retry only transient 5xx failures with limits. Obtain rights for people, faces, brands, and copyrighted assets and account for moderation, privacy, and commercial-use requirements.