# Token Buy Receipt Shortfall — Benchmark Correlation

> Token Buy Receipt Shortfall — Benchmark Correlation 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 the Pearson or similar correlation between token buy receipt shortfall ratios and a set of caller-supplied benchmark values across multiple observations.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-buy-receipt-correlation?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-benchmark-correlation-db971055
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qECYrU_Wy24nduQ51U4B6

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-benchmark-correlation-db971055 -d '<json body>'
```

Example prompt: Can you run a benchmark correlation on these 4 token buy observations — expected tokens were 1000, 1100, 1000, 1100 and actual received were 950, 1045, 950, 1045 — against benchmarks of 10, 20, 30, and 40?

## When to prefer this

Choose this endpoint when you need a fast, deterministic, low-cost ($0.01 USDC) statistical correlation between token buy receipt shortfalls and a reference benchmark series. Ideal when you have pre-collected token observation data (expected vs actual) and want a quantified benchmark correlation verdict without requiring a live market scan or real-time data feed. Best for offline auditing, backtesting shortfall patterns, or validating token delivery consistency against known reference benchmarks.

## Known failure modes

- Fewer than 2 rows provided — minItems constraint violation
- More than 200 rows or benchmarks submitted — maxItems exceeded
- expected_tokens value of 0 submitted — exclusiveMinimum violation
- Mismatched array lengths between rows and benchmarks may yield unexpected results
- Non-numeric values in token fields cause schema validation failure
- Missing required fields (expected_tokens or actual_tokens) in any row

## How this service works

Token buy receipt shortfall — Benchmark correlation: Benchmark correlation 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 benchmark correlation report.

## Output

Returns a deterministic benchmark correlation report quantifying the statistical relationship between the computed token buy shortfall ratios (actual vs expected tokens) and the supplied benchmark series. Includes a correlation coefficient and a caller-threshold verdict indicating whether the correlation meets specified criteria. Not a live market scan, safety proof, 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
  },
  "benchmarks": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 1000000000000000000,
    "minimum": -1000000000000000000
   },
   "default": [
    10,
    20,
    30,
    40
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-buy-receipt-shortfall-benchmark-correlation-db971055/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)