# Source Packs - Required Field Coverage Validator

> Source Packs - Required Field Coverage Validator is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.010093/call, status unknown (last checked 2026-10-15).

Validates source-pack metadata for missing content digest, media type, and byte-count declarations, reporting coverage gaps without loading content.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/context/source-packs/required-field-coverage?utm_source=zero.xyz
- Price: $0.010093/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/source-packs-required-field-coverage-validator-411c41ef
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kE96b1OMpg9s_O_E7O-7f

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 source-packs-required-field-coverage-validator-411c41ef -d '<json body>'
```

Example prompt: Check these 5 source packs for missing required fields — I need to know which ones are lacking content digests, media type declarations, or byte-count entries. The data is public and all metadata is nonpersonal.

## When to prefer this

Use this endpoint when you need a lightweight, offline check of source pack metadata completeness — specifically to detect missing content digests, media types, and byte counts — without triggering content loading, authenticity verification, or full evidence-set evaluation. Best suited for pre-ingestion QA workflows over public or synthetic nonpersonal metadata batches of up to 32 source packs.

## Known failure modes

- Array contains fewer than 1 or more than 32 source packs — returns validation error
- nonpersonalMetadata not set to true — request rejected
- dataClass not one of 'public' or 'synthetic' — returns enum validation error
- Malformed source pack objects — returns field-level parse errors
- Service unavailable — returns 5xx with no partial results

## How this service works

Report missing content digest, media type and byte-count declarations in supplied source-pack metadata. No content loading, authenticity check or complete evidence-set guarantee. Offline typed nonpersonal metadata only. Result retention: 24 hours; minimal receipt metadata: 90 days.

## Output

A report identifying which source packs in the submitted array are missing required metadata declarations, specifically content digests, media type fields, and byte-count entries. Results are retained for 24 hours; minimal receipt metadata is retained for 90 days. No content is loaded or authenticity-checked.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "sources": {
   "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/source-packs-required-field-coverage-validator-411c41ef/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)