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three.ws Background Removal Pipeline (rembg)
x402
three.ws Background Removal Pipeline (rembg) is a paid API for AI agents from three.ws, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Removes the background from an image at a given URL using a selectable segmentation model, returning a transparent PNG persisted to CDN.
Price / call$0.01
Success—
StatusUnknown
How this service works
Make a 3D AI agent from a selfie in 60 seconds. Drop one HTML tag to embed it on any website. Agents think on IBM watsonx.ai (Granite); optionally charge per chat with built-in micropayments.
Output
A JSON object containing the output CDN URL of the background-removed transparent PNG, the segmentation model used, the byte size of the output, the original input URL, the pipeline stage name ('rembg'), and a boolean confirming the result was persisted to CDN.
Example use cases
Product photo background removal
“Strip the background from this product image at https://mystore.com/images/sneaker.jpg and give me a transparent PNG — use the rmbg2 model for speed.”
Portrait cutout for 3D avatar
“Cut out the person in this portrait photo https://cdn.example.com/portrait.jpg using the u2net_human_seg model so I can use it for an avatar.”
High-quality hair segmentation for headshot
“Remove the background from https://photos.example.com/team-headshot.jpg using birefnet — I need really clean edges around the hair for a website banner.”
Technical details
Endpoint
POSThttps://three.ws/api/x402/pipeline-rembg?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, API-driven background removal with selectable segmentation models (including specialist options like u2net_human_seg for people or birefnet for fine hair detail), automatic CDN persistence of results, and per-call micropayment pricing at $0.01 USDC — especially when building pipelines for 3D avatar creation or product photo workflows on three.ws.
Side effects
- Image URL is not publicly accessible or returns a non-200 status — endpoint cannot fetch the source
- Unsupported image format (e.g. BMP, TIFF) — only PNG, JPEG, WEBP, GIF are supported
- Model processing timeout for slow models like birefnet on very large images
- Invalid or malformed URI in image_url field — request rejected with validation error
- Payment not fulfilled — x402 micropayment of $0.01 USDC required per call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| model | string | Segmentation model. rmbg2 (default, general, ~1s), birefnet (BiRefNet, cleanest hair and thin edges, ~6s), u2net_human_seg (people), isnet, u2net, silueta. |
| image_url | string | Public HTTPS URL of the source image (PNG, JPEG, WEBP, or GIF). |
Output
Schema · Response
{
"type": "json",
"example": {
"bytes": 284112,
"model": "rmbg2",
"stage": "rembg",
"input_url": "https://three.ws/avatars/thumbs/default.png",
"persisted": true,
"output_url": "https://three.ws/cdn/x402-pipeline/rembg/abc123.png"
}
}Tags
x402
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