# Policy Excerpts Missingness Co-occurrence

> Policy Excerpts Missingness Co-occurrence is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.020293/call, status unknown (last checked 2026-10-15).

Counts joint absence (co-occurrence of missingness) across policy jurisdiction, scope, and effective-time metadata fields in supplied policy excerpt records.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/context/policy-excerpts/missingness-cooccurrence?utm_source=zero.xyz
- Price: $0.020293/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/policy-excerpts-missingness-co-occurrence-032af59d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yLc6TxM9EjACnKDGVy_dO

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 policy-excerpts-missingness-co-occurrence-032af59d -d '<json body>'
```

Example prompt: Check these 10 policy excerpts — all public data and strictly nonpersonal metadata — for joint missingness across jurisdiction, scope, and effective-time fields, and tell me how often those metadata fields are absent together.

## When to prefer this

Choose this endpoint when you need to quantify co-occurring gaps across jurisdiction, scope, and effective-time metadata in policy excerpts specifically, without any imputation or scoring — particularly when working with public or synthetic nonpersonal metadata and needing raw joint-absence counts rather than a completeness grade or corrected data.

## Known failure modes

- Fewer than 1 or more than 32 excerpts supplied — request rejected with validation error
- nonpersonalMetadata not set to true — request rejected as non-conforming data class
- dataClass value outside allowed enum ('public' or 'synthetic') — schema validation failure
- Malformed excerpt objects in the array — parsing error returned
- Service unavailability leading to timeout or 5xx response

## How this service works

Count joint absence of policy jurisdiction, scope and effective-time metadata. Missingness is reported without imputation or a legal completeness score. Offline typed nonpersonal metadata only. Result retention: 24 hours; minimal receipt metadata: 90 days.

## Output

Returns counts of joint absence across the three policy metadata dimensions (jurisdiction, scope, effective-time), identifying which combinations of fields are simultaneously missing across the supplied excerpts. No imputation is performed and no legal completeness score is produced. Results are retained for 24 hours; minimal receipt metadata is retained for 90 days.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "excerpts": {
   "type": "array",
   "maxItems": 32,
   "minItems": 1
  },
  "dataClass": {
   "enum": [
    "public",
    "synthetic"
   ],
   "type": "string"
  },
  "nonpersonalMetadata": {
   "type": "boolean",
   "const": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/policy-excerpts-missingness-co-occurrence-032af59d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.mahastrategies.com](https://www.zero.xyz/host/www.mahastrategies.com/llms.txt)