Kling 2.6 API

Introduction

Kling 2.6 Image to video takes an opening frame and a prompt describing what happens next, and returns a fixed 1080p clip of 5 or 10 seconds. There is no aspect_ratio field either - the output takes the shape of your source image. generate_audio is optional: turn it on for dialogue or ambient sound rendered with the motion.

Choose a Kling 2.6 mode by starting material

Key features

The opening frame anchors the whole clip

In our test, a woman's plaid shirt, the pickup truck and the desert setting from the opening frame carried through the full clip; the prompt only supplied the gesture, the turn toward the sun and the spoken line.

Sound, when you ask for it, tracks the action

With generate_audio on, our test returned desert wind, crickets and a passing truck synced to the moment she speaks - though the mix ran quieter than the picture, worth a re-run if you need the audio more present.

Request parameters

Pricing

Prices are in credits, the same credits you use on the website (1 credit = $0.01). The hold is taken when the task is accepted and settled to the actual charge when it finishes; failed tasks are refunded.

Each task is rounded up to whole credits, so one run at the lowest tier costs 52 credits for a 5-second clip ($0.52).

For an exact number before you run, send the same body to POST /jobs/quote.

Use cases

Turning an approved still into a scored beat

Animate a character, product or location you've already locked in a photo, and add a short spoken line or ambient sound instead of describing a whole scene from nothing. In our tailgate test, a single plaid-shirt still became a sunset clip with a spoken line, desert wind and a passing truck, all without redescribing the outfit or the setting the photo already fixed.

Fixed-format social clips

1080p, 5 or 10 seconds, is a predictable, ready-to-post shape when you don't need to tune resolution or duration per clip. That fixed shape is also what makes this endpoint a fast way to turn a batch of approved product or character stills into a run of same-format clips for a feed.

Recasting the same still with different lines

Because the opening frame anchors the look, you can run one approved image through several prompts - a different spoken line, a different gesture - and keep the person, outfit and setting identical across every version.

Prompt guide & pro tips

Describe the next beat, not the whole scene

Since the frame already sets the look, the prompt only needs the motion, the camera and - if generate_audio is on - the dialogue or ambient sound you want. Re-describing the outfit or the setting the photo already shows wastes words the model could spend on the action instead.

JPEG or PNG only

This endpoint's image field does not accept other formats. Convert your source image to JPEG or PNG before you upload it - a WEBP or HEIC source fails before the job even starts.

If the sound mix runs quiet, say so in the prompt

Our desert test came back with the wind, crickets and truck all synced to the moment she speaks, but mixed quieter than the picture.

API quick start

Call the Kling 2.6 API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow- and use the same credits as the website.
2. Send the request. POST /jobs/createTask with model kling/2.6/image-to-video and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "kling/2.6/image-to-video",
  "input": {
    "prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
    "image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
    "duration_seconds": 5
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

Kling 2.6 API questions

All Kling models

Kling 3.0 Turbo offers 720p or 1080p and 3 to 15 second clips, always with sound.

• Kling 3.0 API4K clips, multi-shot cuts and motion controlFrom 51 credits for a 5-second clip
• Kling O3 APIKling’s unified model: create, animate, reference and edit up to 4KFrom 51 credits for a 5-second clip
• Kling 3.0 Turbo APIFaster Kling 3.0 with sound on every clipFrom 84 credits for a 5-second clip
• Kling Avatar 2.0 APIA portrait that speaks or sings your audio, up to 5 minutesFrom 7.68 credits per second
• Kling 2.6 API1080p clips with optional sound and motion controlFrom 52 credits for a 5-second clip
• Kling 2.5 Turbo API1080p clips with a soundtrack on every takeFrom 42 credits for a 5-second clip
• Kling 2.1 Master APISilent 1080p clips with fine prompt controlFrom 162 credits for a 5-second clip
• Kling 2.1 APIAnimate a frame at 720p or 1080p, with an optional end frameFrom 27 credits for a 5-second clip

Other video APIs

• MiniMax H3 APIExpressive clips with audio, up to 2KFrom 28 credits for a 5-second clip
• Seedance 2.5 APIByteDance's newest: 30-second clips with native audioFrom 56 credits for a 5-second clip
• Vidu Q4 Preview APIUp to 4K clips with sound and spoken dialogueFrom 34 credits for a 5-second clip
• Wan 3.0 APIUp to 30-second clips with synced audioFrom 34 credits for a 5-second clip
• MiniMax H3 Max APIFast clips with ambience, effects and musicFrom 38 credits for a 5-second clip
• LTX 2.5 APILong 20-second takes up to 4K with a soundtrackFrom 68 credits for a 5-second clip

More about Kling 2.6

Try it

Kling 2.6 AI Video Generator onlineCreate videos with Kling 2.6 in PopNow

Docs

Kling 2.6 model ID and input schema in the API docsPopNow API quickstart: your first request in five minutesImage to video guide for the PopNow APIWebhooks: get Kling 2.6 results without polling