VIDEO GENERATION API

H3 Max Image to Video API

Animate a starting image—and optionally land on an ending image—with fal H3 Max. Route it through one ManifoldGen key and receive a recoverable asynchronous job.

Authentication

Bearer API key

Response

Async job + status URL

Request schema

servicevideo_generateRequired

modelminimax/h3-max/image-to-videoRequired

promptstringRequired

image_urlHTTPS URLRequired

duration5 | 10 | 155

resolution480p | 768p480p

aspect_ratio16:9 | 9:16 | 1:1 | 4:3 | 3:416:9

Job lifecycle: POST to /api/service, read result.job_id, then poll /api/video-jobs/{job_id} every 2–5 seconds. Completed jobs contain a durable video_url.

Open the visual generator

Live API tester

Generator controls

Describe the shot

Starting image URL

Use a public HTTPS URL. Uploads from the homepage and Studio provide one automatically.

DurationAspect ratioResolutionSeed

Output

Your generated shot will appear here, ready to download or place on the Studio timeline.

API request

curl https://manifoldgen.com/api/service \
  -X POST \
  -H "Authorization: Bearer $MANIFOLDGEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "service": "video_generate",
  "model": "minimax/h3-max/image-to-video",
  "prompt": "A cinematic tracking shot through a rain-soaked night market, natural motion, rich reflections",
  "duration": 5,
  "aspect_ratio": "16:9",
  "resolution": "480p",
  "output_format": "mp4",
  "include_audio": false
}'

The API and this tester use the same request. Provider routing stays behind ManifoldGen.