# Unique Observed Token Traders per Trade — Local Finite-Change Elasticity

> Unique Observed Token Traders per Trade — 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 2026-10-13).

Computes local finite-change elasticity for the unique-traders-per-trade ratio given a baseline token observation and a step size.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-unique-trade-ratio-elasticity?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/unique-observed-token-traders-per-trade-local-finite-change-elasticity-a6fa424f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0ZKOzAlLW6neUBSPjZL47

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 unique-observed-token-traders-per-trade-local-finite-change-elasticity-a6fa424f -d '<json body>'
```

Example prompt: Calculate the local finite-change elasticity for the unique_traders field using a baseline of 150 unique traders and 2000 trades, with a step of 0.5%.

## When to prefer this

Choose this endpoint when you need a deterministic, bounded elasticity coefficient specifically for the unique-traders-per-trade ratio in token market data. It is ideal when you have a concrete baseline observation and want to quantify marginal sensitivity without running a live market scan. Prefer it over general statistical APIs when you need a precomputed, cost-bounded single-metric elasticity report at low cost ($0.01 USDC per call).

## Known failure modes

- Invalid baseline values (e.g. trade_count or unique_traders ≤ 0) return validation errors
- step_percent outside the 0.01–10 range is rejected
- Unrecognized field enum values cause schema validation failure
- Missing required baseline properties return a 400-level error
- Service unavailability or payment failure returns a non-200 response

## How this service works

Unique observed token traders per trade — Local finite-change elasticity: Local finite-change elasticity for Unique observed token traders per trade. 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

Returns a local finite-change elasticity report for the specified field (unique_traders or trade_count) based on the supplied baseline values and step percentage. The report provides a deterministic elasticity coefficient reflecting how the unique-traders-per-trade ratio responds to a marginal finite change, along with any threshold verdict if configured.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "field": {
   "enum": [
    "unique_traders",
    "trade_count"
   ],
   "type": "string",
   "default": "unique_traders"
  },
  "baseline": {
   "type": "object",
   "default": {
    "trade_count": 1000,
    "unique_traders": 100
   },
   "required": [
    "unique_traders",
    "trade_count"
   ],
   "properties": {
    "trade_count": {
     "type": "number",
     "default": 1000,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    },
    "unique_traders": {
     "type": "number",
     "default": 100,
     "maximum": 10000000000000000,
     "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/unique-observed-token-traders-per-trade-local-finite-change-elasticity-a6fa424f/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)