# Policy Excerpts - Export Semantic Parity

> Policy Excerpts - Export Semantic Parity is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.039293/call, status unknown (last checked 2026-10-16).

Compares two sets of closed policy excerpt projections for semantic parity by stable identity, scope, jurisdiction, source pin, and effective time, ignoring row order and natural-language equivalence.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/context/policy-excerpts/export-semantic-parity?utm_source=zero.xyz
- Price: $0.039293/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/policy-excerpts-export-semantic-parity-c3fb1751
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KLFB-H3PzLkU5nLr7crfH

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-export-semantic-parity-c3fb1751 -d '<json body>'
```

Example prompt: Compare these two sets of policy excerpt projections — the before list and after list — for semantic parity on public data, checking for any differences in stable identity, scope, jurisdiction, source pin, or effective time, and give me the parity report.

## When to prefer this

Use this endpoint when you need a structured, deterministic comparison of two closed policy excerpt projection sets based on typed metadata fields (identity, scope, jurisdiction, source pin, effective time) rather than natural-language content similarity. Prefer it over general-purpose diff tools when working with public or synthetic nonpersonal policy data and needing an auditable parity result with defined retention semantics.

## Known failure modes

- Exceeds 32-item array limit for before or after inputs — returns validation error
- dataClass not set to 'public' or 'synthetic' — schema validation failure
- nonpersonalMetadata not set to true (const constraint) — rejected request
- Empty before and after arrays — may return trivial parity result with no meaningful comparison
- Malformed policy excerpt objects missing required identity or scope fields — partial or error response

## How this service works

Compare closed policy excerpt projections by stable identity, scope, jurisdiction, source pin and effective time. Ignores row order; no natural-language equivalence judgment. Offline typed nonpersonal metadata only. Result retention: 24 hours; minimal receipt metadata: 90 days.

## Output

A structured parity report comparing the before and after policy excerpt projection arrays across stable identity, scope, jurisdiction, source pin, and effective time dimensions. Flags mismatches and divergences while ignoring row order and natural-language content. Result is retained for 24 hours; minimal receipt metadata is kept for 90 days.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "after": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "before": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "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-export-semantic-parity-c3fb1751/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)