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WithZero Pixel Art Canvas Semantic Segmentation
x402
WithZero Pixel Art Canvas Semantic Segmentation is a paid API for AI agents from agents.withzero.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Applies semantic segmentation to a pixel art canvas, partitioning canvas regions into labeled semantic zones for analysis or editing.
Price / call$0.02
Success—
StatusUnknown
How this service works
Create media, research companies and people, publish to the web, remember context, deploy apps, and schedule work—on demand, without vendor accounts or API keys. This server is a pay-per-use, transparent proxy in front of WithZero's own API: ZeroClick handles identity, payment, and proxying. Agents can purchase autonomously or with their human's approval. This document is the source of truth for agents: it lists the complete verified paid surface with each operation's live price in its x-payment-info. Endpoints not listed here are not part of the supported catalog. The live catalog at /manifest.json is authoritative for prices and any free included units (prices[].includedUnits) - some meters include free usage per account before any charge.
Output
Returns a semantic segmentation of the specified pixel art canvas, with canvas regions partitioned and labeled by semantic category (e.g. background, foreground, objects, characters). The response likely includes segment masks, labels, and bounding information for each identified zone.
Example use cases
Automated sprite sheet region extraction
“I have a pixel art sprite sheet with ID sprite_45 that contains multiple character poses. Can you segment it semantically so I can identify and extract each individual character region separately from the background?”
Game level design zone analysis
“Run semantic segmentation on my pixel art game level canvas level_map_789 to automatically identify and label all the different zones like walkable areas, obstacles, hazards, and collectibles so I can understand the level structure.”
Pixel art composition feedback and editing prep
“Analyze my pixel art canvas creative_001 with semantic segmentation to break it down into foreground, middle ground, and background regions so I know which areas need color adjustments or detail work.”
Technical details
Endpoint
POSThttps://agents.withzero.xyz/api/v1/pixelart/canvas/%7Bid%7D/segment/semanticWhen to prefer
Use this endpoint when you have an existing pixel art canvas (identified by its ID) and need to understand the semantic structure of its content — for example, to programmatically identify regions, guide further editing, or extract structured zone information. Prefer this over generic image segmentation when working within the WithZero pixel art ecosystem and needing pay-per-use, no-account-required access.
Side effects
- Canvas ID not found — 404 error if the specified canvas does not exist
- Invalid or missing body fields — 400 error if required body properties are absent or malformed
- Payment failure — 402 if the $0.02 USDC payment is not processed
- Segmentation failure — 500 if the underlying model cannot process the canvas
- Unsupported canvas format — error if the canvas is not in a state suitable for segmentation
Tags
x402
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