# Aligned Shelf Packing Capacity – Before and After Comparison > Aligned Shelf Packing Capacity – Before and After Comparison is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18). Computes and compares retail shelf packing capacity (number of items that fit) between two shelf/item dimension configurations, returning a before-and-after delta report. ## Facts - Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-retail-shelf-capacity-compare?utm_source=zero.xyz - Price: $0.01/call - Payment: x402 - Status: unknown - Last checked: 2026-10-18 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/aligned-shelf-packing-capacity-before-and-after-comparison-918e8db1 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f6L_1xo5k3mpKW5mrflZO Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability aligned-shelf-packing-capacity-before-and-after-comparison-918e8db1 -d '' ``` Example prompt: Compare how many items fit on a shelf before and after a planogram update — before: shelf is 100 wide × 60 tall × 40 deep, item is 20 wide × 15 tall × 10 deep; after: shelf is 110 wide × 66 tall × 44 deep, item is 22 wide × 16.5 tall × 11 deep. Give me the full before-and-after capacity report. ## When to prefer this Choose this endpoint when you need a quick, cheap ($0.01 USDC) numerical comparison of retail shelf packing capacity across two scenarios — ideal for planogram redesigns, SKU packaging changes, or shelf equipment upgrades. It is purpose-built for aligned (axis-aligned, non-rotated) shelf packing arithmetic and returns a structured before-and-after delta report. Prefer it over general-purpose calculation tools when you have explicit shelf and item dimensions for both a before and after state and need a bounded, auditable comparison rather than a full simulation or live inventory system. ## Known failure modes - Missing required dimension fields (shelf_width, shelf_height, shelf_depth, item_width, item_height, item_depth) in either the before or after object returns a validation error - Zero or negative dimension values are rejected (exclusiveMinimum: 0 enforced) - Extremely large dimension values may produce unexpected capacity results but are technically accepted up to 1e12 - Payment not included or insufficient USDC will result in a 402 Payment Required response - Malformed JSON body returns a 400 error ## How this service works Aligned shelf packing capacity - Before and after comparison: Before and after comparison for Aligned shelf packing capacity. Supplied retail figures only, up to 200 records. No platform access, live rates or order execution. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded before and after comparison report. ## Output Returns a bounded before-and-after comparison report including the number of items that fit on the shelf under both the 'before' and 'after' dimension configurations, along with the delta/change in capacity. Limited to supplied retail figures only (up to 200 records); no live rates or order execution. ## Request schema (JSON Schema) ```json { "type": "object", "properties": { "after": { "type": "object", "default": { "item_depth": 11, "item_width": 22, "item_height": 16.5, "shelf_depth": 44, "shelf_width": 110.00000000000001, "shelf_height": 66 }, "required": [ "shelf_width", "shelf_height", "shelf_depth", "item_width", "item_height", "item_depth" ], "properties": { "item_depth": { "type": "number", "default": 10, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "item_width": { "type": "number", "default": 20, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "item_height": { "type": "number", "default": 15, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "shelf_depth": { "type": "number", "default": 40, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "shelf_width": { "type": "number", "default": 100, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "shelf_height": { "type": "number", "default": 60, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 } }, "additionalProperties": false }, "before": { "type": "object", "default": { "item_depth": 10, "item_width": 20, "item_height": 15, "shelf_depth": 40, "shelf_width": 100, "shelf_height": 60 }, "required": [ "shelf_width", "shelf_height", "shelf_depth", "item_width", "item_height", "item_depth" ], "properties": { "item_depth": { "type": "number", "default": 10, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "item_width": { "type": "number", "default": 20, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "item_height": { "type": "number", "default": 15, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "shelf_depth": { "type": "number", "default": 40, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "shelf_width": { "type": "number", "default": 100, "maximum": 1000000000000, "minimum": 0, "exclusiveMinimum": 0 }, "shelf_height": { "type": "number", "default": 60, "maximum": … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aligned-shelf-packing-capacity-before-and-after-comparison-918e8db1/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)