# Policy Excerpts — Source Coverage Map

> Policy Excerpts — Source Coverage Map is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.035027/call, status unknown (last checked 2026-10-15).

Resolves policy excerpt source and revision declarations against a supplied policy source manifest to determine metadata pin coverage, without evaluating passage support or policy authority.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/context/policy-excerpts/source-coverage-map?utm_source=zero.xyz
- Price: $0.035027/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-source-coverage-map-d7265e27
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_01Rnp-moIGCeoz8olLVac

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-source-coverage-map-d7265e27 -d '<json body>'
```

Example prompt: Can you check whether the source and revision declarations in these policy excerpts are covered by our source manifest? I have up to 20 excerpts with public data class and want to see which ones have matching metadata pins.

## When to prefer this

Use this endpoint when you need to audit whether policy excerpt source and revision declarations are pinned in a known source manifest — specifically for metadata-level coverage checks, not for evaluating the substantive correctness or authority of policy passages. Ideal for compliance workflows, document governance pipelines, and regulatory excerpt management where source traceability and revision-pin alignment are required. Prefer this over general document validation tools when working with typed nonpersonal metadata and needing deterministic source-to-pin matching.

## Known failure modes

- Empty excerpts array returns validation error (minItems:1 required)
- More than 32 excerpts or sources exceeds maxItems limit and is rejected
- nonpersonalMetadata not set to true causes schema validation failure
- Invalid or missing dataClass enum value ('public' or 'synthetic' required) causes error
- Malformed source manifest entries may result in incomplete coverage matches
- No matching pins found returns empty coverage map rather than error

## How this service works

Resolve excerpt source/revision declarations against a supplied policy source manifest. Coverage means a matching metadata pin, not passage support or an authoritative policy. Offline typed nonpersonal metadata only. Result retention: 24 hours; minimal receipt metadata: 90 days.

## Output

Returns a coverage map indicating which excerpt source and revision declarations match a metadata pin in the supplied policy source manifest. Results show matched and unmatched declarations per excerpt, but do not assess passage support or policy authority. Results are retained for 24 hours; minimal receipt metadata is retained for 90 days.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "sources": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "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-source-coverage-map-d7265e27/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)