# Token Buy Receipt Shortfall — Distribution Summary

> Token Buy Receipt Shortfall — Distribution Summary is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Computes a statistical distribution summary of token buy receipt shortfalls (expected vs actual tokens received) across a batch of observations.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-buy-receipt-summary?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-buy-receipt-shortfall-distribution-summary-3f615ec6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_M-lq8sqjXl7xyHOlCQ78j

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-receipt-shortfall-distribution-summary-3f615ec6 -d '<json body>'
```

Example prompt: Can you give me a distribution summary of token buy shortfalls for these 4 purchases: first one expected 1000 tokens but got 950, second expected 1100 but got 1045, third expected 1000 but got 950, and fourth expected 1100 but got 1045?

## When to prefer this

Use this endpoint when you need a statistical distribution summary of token buy receipt shortfalls across a batch of 2–200 observations and have the raw expected vs actual token pairs ready. It is ideal for post-purchase auditing, slippage pattern analysis, or pre-settlement reporting where a deterministic, caller-threshold computation is sufficient and no live market data or safety verification is needed.

## Known failure modes

- Fewer than 2 rows provided — minimum of 2 observation pairs required
- expected_tokens value of 0 or below — must be greater than 0 (exclusiveMinimum enforced)
- actual_tokens or expected_tokens exceeding 10000000000000000 — out of allowed range
- More than 200 rows submitted — maxItems limit exceeded
- Missing required fields expected_tokens or actual_tokens in any row
- Payment not completed — x402 payment of 0.01 USDC required per call

## How this service works

Token buy receipt shortfall — Distribution summary: Distribution summary for Token buy receipt 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 distribution summary report.

## Output

A bounded distribution summary report of token buy receipt shortfalls across the supplied observation rows, including statistical measures characterizing how actual tokens received deviate from expected amounts. The result is a deterministic calculation based solely on the caller-supplied data — not a live market scan or trade recommendation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "expected_tokens",
     "actual_tokens"
    ],
    "properties": {
     "actual_tokens": {
      "type": "number",
      "default": 950,
      "maximum": 10000000000000000,
      "minimum": 0
     },
     "expected_tokens": {
      "type": "number",
      "default": 1000,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "actual_tokens": 950,
     "expected_tokens": 1000
    },
    {
     "actual_tokens": 1045,
     "expected_tokens": 1100
    },
    {
     "actual_tokens": 950,
     "expected_tokens": 1000
    },
    {
     "actual_tokens": 1045,
     "expected_tokens": 1100
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-buy-receipt-shortfall-distribution-summary-3f615ec6/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)