# Token Buy Volume Fraction — IQR Outlier Flags

> Token Buy Volume Fraction — IQR Outlier Flags is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Calculates IQR-based outlier flags for the buy volume fraction (buy_volume / total_volume) across a supplied set of token trading observations.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-buy-volume-share-outliers?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-buy-volume-fraction-iqr-outlier-flags-9cea9e49
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Zr9EnlhDnvbFr4X79NWyF

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-buy-volume-fraction-iqr-outlier-flags-9cea9e49 -d '<json body>'
```

Example prompt: Can you flag any IQR outliers in these token buy/sell volume pairs — I have 4 observations: (60000, 40000), (66000, 44000), (60000, 40000), and (66000, 44000)? I want to see which rows have an unusual buy volume fraction.

## When to prefer this

Choose this endpoint when you have a batch of token trading observations with buy and sell volumes and need a fast, deterministic, statistically grounded method (IQR) to identify which rows have anomalous buy volume fractions. Prefer this over custom statistical scripts when you need a cheap ($0.01 USDC), bounded, reproducible outlier report without building your own quartile logic. Best suited for up to 200 observations per call.

## Known failure modes

- Fewer than 2 rows supplied — minimum 2 observations required
- More than 200 rows supplied — exceeds maxItems limit
- buy_volume or sell_volume is zero or missing — exclusiveMinimum > 0 required
- Values exceed maximum of 1e16 — out of range error
- Malformed row objects with extra properties — rejected due to additionalProperties:false
- Insufficient variation in data for meaningful IQR computation

## How this service works

Token buy volume fraction — IQR outlier flags: IQR outlier flags for Token buy volume fraction. 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 iqr outlier flags report.

## Output

Returns per-row IQR outlier flags indicating whether each observation's buy volume fraction (buy_volume / (buy_volume + sell_volume)) is an outlier based on the interquartile range method. Each row is classified as an outlier or not, using a deterministic calculation against caller-supplied or preset thresholds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "buy_volume",
     "sell_volume"
    ],
    "properties": {
     "buy_volume": {
      "type": "number",
      "default": 60000,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     },
     "sell_volume": {
      "type": "number",
      "default": 40000,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "buy_volume": 60000,
     "sell_volume": 40000
    },
    {
     "buy_volume": 66000,
     "sell_volume": 44000
    },
    {
     "buy_volume": 60000,
     "sell_volume": 40000
    },
    {
     "buy_volume": 66000,
     "sell_volume": 44000
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-buy-volume-fraction-iqr-outlier-flags-9cea9e49/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)