Topaz Astra API

About Topaz Astra

Creative video upscaling with new texture and detail, up to 4K.

Call it with the model name topaz/astra/upscale on POST /jobs/createTask, from $0.36.

Introduction

Astra is designed for shots whose finish can change during enlargement. An AI-generated interior or a stylized sequence may benefit from richer materials even if those materials are newly imagined. The task is therefore to approve a visual interpretation, including its treatment of people, rather than recover a definitive record of the scene.

Key features

Creative freedom has three levels, starting at low, and an optional written description can direct the scene’s appearance. The three output tiers are 720p, 1080p and 4K, leaving no intermediate 2K selection in this endpoint.

The no-prompt cellar run at low creativity added individual hair strands and more distinct glass boundaries, but also altered the woman’s eye and profile. Its three-second source took roughly two hundred ten seconds at 1080p. Even the restrained setting can therefore change meaningful facial detail, and a better-resolved still is only one part of evaluating the returned sequence.

Request parameters

Pricing

Prices are in USD. The API uses a separate USD balance. Website credits cannot be used or transferred to it, and API funds cannot be transferred to website credits. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.

Send the same request body to POST /jobs/quote to see the estimated and maximum USD charge before running. A quote does not run the task or charge your balance.

Use cases

For a stylized film insert, use a selected interior take to explore a richer surface treatment. Compare clothing, glass and background materials with the intended art direction and with neighboring shots, where a change in visual finish may become conspicuous.

For AI video finishing, test the chosen take before creating all delivery sizes. Reject an appealing result if a recognizable face or important object drifts beyond what the project permits, even when the new texture looks attractive in isolation.

Prompt guide & pro tips

Establish an unprompted low pass before steering the image with text. If direction is needed, describe the visible subject, material and lighting in a coherent sentence; asking for unrelated objects makes the requested finish harder to judge against the supplied composition. Change one control at a time when comparing creative versions.

Watch turns of the head and movement around hair or glass across neighboring frames. Check that the added appearance remains useful throughout the take, then verify dimensions and the retained soundtrack.

API quick start

Call the Topaz Astra 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-. API calls use your separate USD balance.
2. Send the request. POST /jobs/createTask with model topaz/astra/upscale 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": "topaz/astra/upscale",
  "input": {
    "video_url": "https://media.popnow.ai/effects/flower-bloom-1abd6efb.mp4",
    "resolution": "1080p",
    "creativity_level": "low"
  }
}'

# 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.

Topaz Astra API questions

All Topaz models

• Topaz Bloom APICreative upscaling that adds new detail to AI art and illustrationsFrom $0.36 per image
• Topaz Denoise & Sharpen APIRemove noise or fix blur at the same resolution, up to 24 MPFrom $0.12 per image
• Topaz Gigapixel APIFaithful, generative or transparent upscales to 2K, 4K or 8KFrom $0.12 per image
• Topaz Astra APICreative video upscaling with new texture and detail, up to 4KFrom $0.36 per second
• Topaz Starlight APIGenerative repair that rebuilds detail in soft or compressed footage, up to 4KFrom $0.07 per second
• Topaz Video AI APIUpscale to 4K, remove noise or blur, convert to HDR, smooth or slow down motionFrom $0.002 per second

Other video APIs

• MiniMax H3 APIExpressive clips with audio, up to 30 seconds or 2KFrom $0.125 for a 5-second clip
• Video Upscaler APIUpscale any clip to 1080p, 2K or 4KFrom $0.006 per second
• FLUX 3 APIVideo with synced sound and a quick draft tierFrom $0.30 for a 5-second clip
• SeedVR2 Video APIRestore and upscale a clip to 1080p, 2K or 4KFrom $0.024 per second

More about Topaz Astra

Try it

Topaz Astra AI Video Upscaler onlineCreate videos with Topaz Astra in PopNow

Docs

Topaz Astra model ID and input schema in the API docsPopNow API quickstart: send your first requestImage to video guide for the PopNow APIWebhooks: get Topaz Astra results without polling