# Marketplace Proceeds Local Finite-Change Elasticity

> Marketplace Proceeds 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 local finite-change elasticity of marketplace net proceeds with respect to a chosen fee or revenue variable, given a baseline scenario and step size.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-retail-marketplace-proceeds-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/marketplace-proceeds-local-finite-change-elasticity-113b3e8a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kCdytFhG7V8KrLPb92L3p

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 marketplace-proceeds-local-finite-change-elasticity-113b3e8a -d '<json body>'
```

Example prompt: For a baseline where gross sale is $100, fee_percent is 10%, fixed_fee is $1, and refunds are $5, can you calculate the local elasticity of marketplace proceeds with respect to gross_sale using a step size of 1%?

## When to prefer this

Choose this endpoint when you need a quick, purely local sensitivity calculation showing how marketplace net proceeds respond to marginal changes in a specific fee or revenue variable. It is ideal for scenario analysis and pricing strategy work where you have your own baseline figures and do not need live inventory, platform fee lookups, or order execution.

## Known failure modes

- Missing required baseline fields (gross_sale, fee_percent, fixed_fee, refunds) returns a validation error
- step_percent outside the allowed range [0.01, 10] is rejected
- fee_percent exceeding 100 is rejected
- Non-numeric values in baseline fields cause schema validation failure
- Baseline values exceeding maximum (1e12) are rejected

## How this service works

Marketplace proceeds from supplied fees - Local finite-change elasticity: Local finite-change elasticity for Marketplace proceeds from supplied fees. 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 quantifying how much marketplace net proceeds change (proportionally) for a given proportional change in the selected input variable, computed from the supplied baseline figures and step size. No live data, account access, or platform fee lookups are involved — purely local calculation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "field": {
   "enum": [
    "gross_sale",
    "fee_percent",
    "fixed_fee",
    "refunds"
   ],
   "type": "string",
   "default": "gross_sale"
  },
  "baseline": {
   "type": "object",
   "default": {
    "refunds": 5,
    "fixed_fee": 1,
    "gross_sale": 100,
    "fee_percent": 10
   },
   "required": [
    "gross_sale",
    "fee_percent",
    "fixed_fee",
    "refunds"
   ],
   "properties": {
    "refunds": {
     "type": "number",
     "default": 5,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "fixed_fee": {
     "type": "number",
     "default": 1,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "gross_sale": {
     "type": "number",
     "default": 100,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "fee_percent": {
     "type": "number",
     "default": 10,
     "maximum": 100,
     "minimum": 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/marketplace-proceeds-local-finite-change-elasticity-113b3e8a/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)