# Token Assessment Evidence Coverage — Single Calculation

> Token Assessment Evidence Coverage — Single Calculation 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).

Calculates the evidence coverage ratio for a token assessment by comparing observed fields to requested fields, returning a deterministic coverage score or verdict.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-evidence-coverage-calculate?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-single-calculation-f3b4974a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-aW_DYu5CcogmlHsboRL4

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-single-calculation-f3b4974a -d '<json body>'
```

Example prompt: Calculate the token assessment evidence coverage for a token where 8 out of 10 requested fields were observed — I need a single coverage calculation report.

## When to prefer this

Use this endpoint when you need a fast, deterministic, single-shot computation of how well observed token data fields cover the requested fields for an assessment. Prefer this over batch variants when processing one token at a time or when integrating into a real-time pipeline step. Best suited for lightweight due diligence checks, threshold verdicts, or automated screening workflows where a full live scan is unnecessary.

## Known failure modes

- requested_fields must be greater than 0 (exclusiveMinimum enforced) — zero value returns validation error
- observed_fields exceeding requested_fields may produce coverage > 100% or clamped result depending on engine logic
- Missing required nested properties (observed_fields or requested_fields) returns schema validation error
- Network or payment failure at the x402 layer results in no report returned

## How this service works

Token assessment evidence coverage — Single calculation: Single calculation 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 single calculation report.

## Output

A bounded single-calculation report indicating the token assessment evidence coverage, expressed as a ratio or score of observed fields to requested fields, potentially including a caller-threshold verdict. Does not include live scan results, safety proofs, or trade recommendations.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "values": {
   "type": "object",
   "default": {
    "observed_fields": 8,
    "requested_fields": 10
   },
   "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
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-assessment-evidence-coverage-single-calculation-f3b4974a/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)