Public Versions and Endpoints
| Model ID | Endpoints | Price | Catalog |
|---|---|---|---|
heygen-video-1
|
/api/v1/heygen_video/text_to_video
/api/v1/heygen_video/image_to_video
|
$0.09 / second | Model detail |
Verify
Poll until the task reaches a terminal status
POST /api/v1/heygen_video/text_to_video and save the returned Task id.
GET /api/v1/heygen_video/text_to_video/<task-id> until status is completed or failed.
Verify the completed response contains the endpoint-specific output documented in the API reference.Configuration
Guide endpoint: /api/v1/heygen_video/text_to_video
export RUNAPI_API_KEY=your_api_key
curl -X POST https://runapi.ai/api/v1/heygen_video/text_to_video \
-H "Authorization: Bearer $RUNAPI_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "heygen-video-1",
"prompt": "A plant supervisor in a plain grey coat stands beside a conveyor line and speaks to camera.",
"output_resolution": "768p",
"aspect_ratio": "16:9"
}'Get Started in 3 Steps
-
Choose a model ID
Select a public catalog model ID and review its endpoint and current starting price.
-
Configure RunAPI
Set RUNAPI_API_KEY before making the endpoint request.
-
Verify the result
For asynchronous endpoints, poll the same endpoint until the Task reaches a terminal status.
What to Build with OpenClaw + HeyGen Video
-
Product and marketing clips
Create short promotional clips for product pages, ads, and landing pages from a written brief.
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Social media shorts
Produce short clips for social feeds and try several takes of the same idea before choosing one.
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Image animation and video edits
Animate still images or change existing footage where the model offers image-to-video or video editing endpoints.
Why Use HeyGen Video Through RunAPI + OpenClaw
-
1 variants, one API key
Use one RunAPI connection to choose among the live model variants without changing your integration.
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Clear usage pricing
See current catalog pricing before you send a request, with no subscription or minimum spend required.
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Automatic task workflows
Submit, poll, and collect asynchronous results through a consistent task workflow without writing manual polling code.
OpenClaw + HeyGen Video Questions
What is the HeyGen Video API model ID?
Send heygen-video-1 as the model value. The text-to-video endpoint takes a prompt and optional reference images, videos, or audio; the image-to-video endpoint takes a prompt and a first-frame image.
Which HeyGen Video inputs are supported?
Use a text prompt, a first-frame image, or reference images, videos, and audio clips. Outputs support 5 to 15 seconds at 480p, 768p, 1080p, or 2K, and include generated sound.
Does HeyGen Video generate audio?
Yes. Every clip includes generated dialogue, ambience, and effects from the same request.
How is HeyGen Video billed on RunAPI?
Billing is per second of video. The pricing table on this page lists the current rate for each resolution and input type, and failed generations are not charged.
Is this the HeyGen avatar API?
No. HeyGen Video is HeyGen's general video model and builds the whole scene, sound included, from a prompt or images. Talking-avatar videos made from a script and a chosen voice come from HeyGen's separate avatar API, which RunAPI does not offer.
Which model ID should I use?
Choose a public model ID from the version table. Each ID exposes the endpoints shown for that version.
Does this guide configure a chat model?
No. This Model Line uses the endpoint workflow shown here and is not presented as an agent chat model.