# Parcel Dimensional Weight Local Finite-Change Elasticity

> Parcel Dimensional Weight Local Finite-Change Elasticity 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).

Calculates how parcel dimensional weight changes in response to small percentage changes in a specified dimension or carrier divisor (local finite-change elasticity).

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-retail-dimensional-weight-elasticity?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/parcel-dimensional-weight-local-finite-change-elasticity-b4bbc00f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q4e6FeHrY7zVSFLKi5wS8

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 parcel-dimensional-weight-local-finite-change-elasticity-b4bbc00f -d '<json body>'
```

Example prompt: For a parcel that's 40 cm long, 30 cm wide, and 20 cm tall with a carrier divisor of 5000, calculate the local finite-change elasticity of dimensional weight with respect to length using a step of 1%.

## When to prefer this

Use this endpoint when you need a fast, local sensitivity or scenario analysis for parcel dimensional weight calculations — specifically to understand how a small percentage change in one dimension or the carrier divisor affects the DIM weight. It is ideal for packaging optimization, rate-shopping comparisons, and logistics cost modeling where you only need local elasticity rather than real-time carrier rates or live inventory data.

## Known failure modes

- Invalid field enum value (must be one of: length, width, height, carrier_divisor)
- carrier_divisor set to zero or negative (exclusiveMinimum applies)
- step_percent outside allowed range of 0.01 to 10
- Baseline dimension values exceeding maximum (1,000,000,000,000)
- Missing required baseline fields (length, width, height, carrier_divisor)
- Malformed JSON body returns 400-level error

## How this service works

Parcel dimensional weight - Local finite-change elasticity: Local finite-change elasticity for Parcel dimensional weight. Supplied retail figures only. Local calculation and scenario analysis; no live inventory, account access, platform fee lookup or order execution. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded local finite-change elasticity deliverable.

## Output

Returns a local finite-change elasticity value showing how dimensional weight responds to a small percentage change in the specified field (length, width, height, or carrier divisor) from the given baseline configuration. Results are computed locally and suitable for scenario analysis and sensitivity comparisons.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "field": {
   "enum": [
    "length",
    "width",
    "height",
    "carrier_divisor"
   ],
   "type": "string",
   "default": "length"
  },
  "baseline": {
   "type": "object",
   "default": {
    "width": 30,
    "height": 20,
    "length": 40,
    "carrier_divisor": 5000
   },
   "required": [
    "length",
    "width",
    "height",
    "carrier_divisor"
   ],
   "properties": {
    "width": {
     "type": "number",
     "default": 30,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "height": {
     "type": "number",
     "default": 20,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "length": {
     "type": "number",
     "default": 40,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "carrier_divisor": {
     "type": "number",
     "default": 5000,
     "maximum": 1000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  },
  "step_percent": {
   "type": "number",
   "default": 1,
   "maximum": 10,
   "minimum": 0.01
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/parcel-dimensional-weight-local-finite-change-elasticity-b4bbc00f/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)