# Token Sell Proceeds Shortfall — Local Finite-Change Elasticity

> Token Sell Proceeds Shortfall — 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 2026-10-14).

Calculates local finite-change elasticity of token sell proceeds shortfall, measuring how proportionally a sell proceeds gap changes relative to small percentage-point shifts in a given input field.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-sell-receipt-elasticity?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-sell-proceeds-shortfall-local-finite-change-elasticity-dc56db55
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bgQvJ2fiGWjo8VSem1C9i

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 token-sell-proceeds-shortfall-local-finite-change-elasticity-dc56db55 -d '<json body>'
```

Example prompt: I sold some tokens and expected $100 but only got $94 — can you calculate the local finite-change elasticity of that proceeds shortfall using a 1% step on the expected_usd field?

## When to prefer this

Choose this endpoint when you need a deterministic, bounded, point-in-time elasticity coefficient for a token sell proceeds shortfall — specifically when you have a known expected vs actual USD pair and want to understand how sensitive the shortfall is to marginal changes in one input. Prefer this over generic sensitivity tools when working within the datapackvibe shared analytics engine's DeFi/token context, or when you need a cheap ($0.01 USDC), reproducible elasticity calculation without live market data.

## Known failure modes

- expected_usd set to 0 or missing (violates exclusiveMinimum constraint, returns validation error)
- step_percent outside 0.01–10 range causes schema rejection
- actual_usd or expected_usd exceeding 10^16 maximum bound triggers validation failure
- Malformed baseline object with missing required fields returns 400-style error
- Non-numeric values for numeric fields cause type validation errors

## How this service works

Token sell proceeds shortfall — Local finite-change elasticity: Local finite-change elasticity for Token sell proceeds shortfall. Supplied token observations only. Deterministic calculation or caller-threshold verdict, not a live scan, safety proof or trade recommendation. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded local finite-change elasticity report.

## Output

A bounded local finite-change elasticity report quantifying how proportionally the token sell proceeds shortfall changes in response to a small finite perturbation (step_percent) in the selected input field (expected_usd or actual_usd). Output is a deterministic numeric elasticity value, not a live market scan or trade recommendation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "field": {
   "enum": [
    "expected_usd",
    "actual_usd"
   ],
   "type": "string",
   "default": "expected_usd"
  },
  "baseline": {
   "type": "object",
   "default": {
    "actual_usd": 94,
    "expected_usd": 100
   },
   "required": [
    "expected_usd",
    "actual_usd"
   ],
   "properties": {
    "actual_usd": {
     "type": "number",
     "default": 94,
     "maximum": 10000000000000000,
     "minimum": 0
    },
    "expected_usd": {
     "type": "number",
     "default": 100,
     "maximum": 10000000000000000,
     "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/token-sell-proceeds-shortfall-local-finite-change-elasticity-dc56db55/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)