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Sound effects that match the action, added to a silent clip.

Best for

  • Cut scene: render the clip with Kling 4.0, then add sound with this.
  • Sound on gameplay captures for a trailer edit.
  • Many short clips at a flat price each.

Price

$0.035 per clip. Exact list price: 0.035 USD. No markup: this is the provider’s list price, checked 2026-10-24. A failed job costs nothing. Get the exact price of one request, free and without a key, from POST /v1/estimate.

Example call

Sign in once with summer login; over HTTP, send Authorization: Bearer $SUMMER_TOKEN after export SUMMER_TOKEN=$(summer token) (sign-in). This job takes minutes. The CLI follows it and saves the file. Over HTTP the call answers running with a job id: check GET /v1/jobs/{id} until state is done (jobs); the quickstart has the full loop.
The finished job has state "done" and result.assets: one entry per file, each with assetId, fileUrl (a Summer URL) and thumbnailUrl. Download the file into your project, or import it in Summer Engine by its asset id.

Input

Send these fields in input. The full JSON Schema is inputSchema in GET /v1/models/video/kling-video-to-audio.

For agents

This page as Markdown: https://docs.summerengine.com/api/models/video/kling-video-to-audio.md. The live record with the JSON Schema: GET https://www.summerengine.com/v1/models/video/kling-video-to-audio, public, no sign-in.