# Token Assessment Evidence Coverage — Benchmark Correlation

> Token Assessment Evidence Coverage — 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 2026-10-12).

Computes a benchmark correlation report for token assessment evidence coverage, comparing observed vs requested fields against provided benchmark values using a deterministic calculation.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-evidence-coverage-correlation?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-assessment-evidence-coverage-benchmark-correlation-5fee31bd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CUKPwaFOecE3zpySn3X_1

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-assessment-evidence-coverage-benchmark-correlation-5fee31bd -d '<json body>'
```

Example prompt: Run a benchmark correlation report on my token evidence coverage data — I have 4 rows where observed fields are 8, 8.8, 8, 8.8 and requested fields are 10, 11, 10, 11, and I want to compare them against benchmarks of 10, 20, 30, and 40.

## When to prefer this

Use this endpoint when you need a fast, deterministic, reproducible correlation report comparing token evidence field coverage against known benchmark thresholds — especially when you have between 2 and 200 row observations and 2 to 200 benchmark values. Prefer this over live scanning or ML-based assessment tools when you want a bounded, caller-controlled verdict with no side effects and consistent outputs for the same inputs.

## Known failure modes

- Fewer than 2 rows provided — minimum minItems:2 required
- requested_fields set to 0 — exclusiveMinimum:0 means zero is disallowed
- More than 200 rows or 200 benchmarks supplied — exceeds maxItems
- Missing required fields observed_fields or requested_fields in any row
- Non-numeric values passed for numeric fields
- Network or payment failure via x402 protocol resulting in no response

## How this service works

Token assessment evidence coverage — Benchmark correlation: Benchmark correlation for Token assessment evidence coverage. 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 bounded benchmark correlation report comparing the ratio of observed to requested fields across supplied rows against the provided benchmark values, producing a deterministic correlation verdict or threshold-based score — not a live scan or trade recommendation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "observed_fields",
     "requested_fields"
    ],
    "properties": {
     "observed_fields": {
      "type": "number",
      "default": 8,
      "maximum": 10000000000000000,
      "minimum": 0
     },
     "requested_fields": {
      "type": "number",
      "default": 10,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "observed_fields": 8,
     "requested_fields": 10
    },
    {
     "observed_fields": 8.8,
     "requested_fields": 11
    },
    {
     "observed_fields": 8,
     "requested_fields": 10
    },
    {
     "observed_fields": 8.8,
     "requested_fields": 11
    }
   ],
   "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-assessment-evidence-coverage-benchmark-correlation-5fee31bd/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)