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StableKey – CorridorKey Neural Green-Screen Keyer
x402
StableKey – CorridorKey Neural Green-Screen Keyer is a paid API for AI agents from stablekey.dev, paid per call via x402, $5/call, status unknown (last checked 2026-09-15).
Processes a green-screen video plate using Corridor Digital's CorridorKey neural keyer to produce VFX-grade alpha matte, straight foreground, and premultiplied RGBA output videos
Price / call$5
Success—
StatusUnknown
How this service works
VFX-grade green-screen unmixing via Corridor Digital's CorridorKey neural keyer. Submit a green-screen plate, get back alpha + straight foreground + premultiplied RGBA mp4s. Operated at cost via x402.
Output
Returns JSON containing URLs or data for three output MP4 files: an alpha matte channel video, a straight (unmultiplied) foreground video, and a premultiplied RGBA composite-ready video — all produced by the CorridorKey neural keyer at VFX grade quality.
Example use cases
Example prompt
“Can you run CorridorKey neural keying on this green-screen plate and give me back the alpha matte, straight foreground, and premultiplied RGBA videos so I can composite it in my VFX pipeline?”
Technical details
Endpoint
POSThttps://stablekey.dev/api/processWhen to prefer
Choose this endpoint when you need VFX-grade green-screen removal with neural accuracy rather than simple color-range chroma keying. Particularly suited for professional post-production pipelines that require separate alpha, straight foreground, and premultiplied RGBA outputs. Ideal when standard chroma key tools produce fringe artifacts or struggle with fine hair/edge detail.
Side effects
- Invalid or inaccessible video file URL returns error
- Non-green-screen footage may yield poor keying results
- Payment failure (insufficient USDC balance) blocks processing
- Unsupported video format or codec may cause rejection
- Server timeout on very large or long video files
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| type | string | |
| rgbUrl | string | StableUpload public URL of the source RGB plate (mp4). |
| hintUrl | string | OPTIONAL StableUpload public URL of a coarse alpha hint mp4. When omitted, stablekey generates a chroma-key hint inline (works on clean studio plates). Bring your own SAM-derived mask via stablesam.dev for gnarly shots: subject wearing green, busy non-green BG props, multiple subjects, translucent FG. |
| options | object | |
| outputs | object | |
| declared | object | |
| clientRequestId | string |
Tags
x402
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