Text-to-Video API Reference - Magic Hour Docs
What this API does
Create the same Text To Video you can make in the browser, but programmatically, so you can automate it, run it at scale, or connect it to your own app or workflow.
Good for
- Automation and batch processing
- Adding text to video into apps, pipelines, or tools
How it works (3 steps)
- Upload your inputs (video, image, or audio) with Generate Upload URLs and copy the
file_path. - Send a request to create a text to video job with the basic fields.
- Check the job status until it’s
complete, then download the result fromdownloads.
Key options
- Inputs: usually a file, sometimes a YouTube link, depending on project type
- Resolution: free users are limited to 576px; higher plans unlock HD and larger sizes
- Extra fields: e.g.
face_swap_mode,start_seconds/end_seconds, or a text prompt
Cost
Credits are only charged for the frames that actually render. You’ll see an estimate when the job is queued, and the final total after it’s done.
For detailed examples, see the product page.
Authorizations
Bearer authentication header of the form Bearer <api_key>, where <api_key> is your API key. To get your API key, go to Developer Hub and click "Create new API Key".
Body
Body
The total duration of the output video in seconds. Supported durations depend on the chosen model:
ltx-2.3: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30wan-2.2: 3, 4, 5, 6, 7, 8, 9, 10, 15kling-3.0: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15veo3.1-lite: 4, 6, 8, 16, 24, 32, 40, 48, 56veo3.1: 4, 6, 8, 16, 24, 32, 40, 48, 56seedance-1.5: 4, 5, 6, 7, 8, 9, 10, 11, 12seedance-2.0-mini: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15seedance-2.0: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15sora-2: 4, 8, 12, 24, 36, 48, 60
1 <= x <= 605
Give your video a custom name for easy identification.
"My Text To Video video"
Determines the aspect ratio of the output video.
ltx-2.3: Supports 9:16, 16:9, 1:1.wan-2.2: Supports 9:16, 16:9, 1:1.kling-3.0: Supports 9:16, 16:9, 1:1.veo3.1-lite: Supports 9:16, 16:9.veo3.1: Supports 9:16, 16:9.seedance-1.5: Supports 9:16, 16:9, 1:1.seedance-2.0-mini: Supports 9:16, 16:9, 1:1.seedance-2.0: Supports 9:16, 16:9, 1:1.sora-2: Supports 9:16, 16:9.
16:9, 9:16, 1:1 "16:9"
Controls the output video resolution. Defaults to 720p on paid tiers and 480p on free tiers.
ltx-2.3: Supports 480p, 720p, 1080p.wan-2.2: Supports 480p, 720p, 1080p.kling-3.0: Supports 720p, 1080p, 4k.veo3.1-lite: Supports 720p, 1080p.veo3.1: Supports 720p, 1080p.seedance-1.5: Supports 480p, 720p, 1080p.seedance-2.0-mini: Supports 480p, 720p.seedance-2.0: Supports 480p, 720p.sora-2: Supports 720p.
480p, 720p, 1080p, 4k "720p"
The AI model to use for video generation.
default: uses our currently recommended model for general use. For paid tiers, defaults tokling-3.0. For free tiers, it defaults toltx-2.3.ltx-2.3: Fastest output. Best for rapid iteration.wan-2.2: Strong physics, camera moves, and motion.kling-3.0: Best overall quality for cinematic storytelling.veo3.1-lite: Veo quality at a more accessible cost.veo3.1: Google's model. Highest realism and detail.seedance-1.5: Smooth, consistent motion with precision.seedance-2.0-mini: Fast, consistent video with strong motion qualityseedance-2.0: Top quality with reference-to-video control.sora-2: Open AI's model. Great for creativity and viral clips.
If you specify the deprecated model value that includes the -audio suffix, this will be the same as included audio as true.
default, ltx-2, ltx-2.3, wan-2.2, seedance-1.5, seedance-2.0, seedance-2.0-mini, kling-2.5, kling-3.0, veo3.1, veo3.1-lite, sora-2, kling-1.6, seedance, kling-2.5-audio, veo3.1-audio "kling-3.0"
Whether to include audio in the video. Defaults to false if not specified.
Audio support varies by model:
ltx-2.3: Toggle-able: no additional credits for audiowan-2.2: Not supportedkling-3.0: Toggle-able: audio adds extra credits when enabledveo3.1-lite: Toggle-able: audio adds extra credits when enabledveo3.1: Toggle-able: audio adds extra credits when enabledseedance-1.5: Toggle-able: audio adds extra credits when enabledseedance-2.0-mini: Toggle-able: no additional credits for audioseedance-2.0: Toggle-able: no additional credits for audiosora-2: Toggle-able: no additional credits for audio
true
Response
Success
Success
Unique ID of the video. Use it with the Get video Project API to fetch status and downloads.
"cuid-example"
The amount of credits deducted from your account to generate the video. If the status is not 'complete', this value is an estimate and may be adjusted upon completion based on the actual FPS of the output video.
If video generation fails, credits will be refunded, and this field will be updated to include the refund.
450