# Source Packs — Identifier Crosswalk Audit

> Source Packs — Identifier Crosswalk Audit is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.035058/call, status unknown (last checked 2026-10-15).

Resolves caller-declared source aliases against exact source IDs and content digest pins for offline, typed non-personal metadata validation.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/context/source-packs/identifier-crosswalk-audit?utm_source=zero.xyz
- Price: $0.035058/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-identifier-crosswalk-audit-1dee34c4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6yU0jbFssp3PNUTCxlOE8

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-identifier-crosswalk-audit-1dee34c4 -d '<json body>'
```

Example prompt: Can you run an identifier crosswalk audit on these source aliases [alias-A, alias-B] against these source IDs [src-001, src-002] using public data class, to verify they resolve to the correct content digest pins?

## When to prefer this

Choose this endpoint when you need offline, typed resolution of source aliases to canonical source IDs and content digest pins without any URL resolution or inferred equivalence. Ideal for data governance pipelines, pre-release audits, or consistency checks where strict alias-to-ID fidelity and digest pin verification are required on non-personal public or synthetic metadata.

## Known failure modes

- Alias not found in known source ID registry — returns unresolved entry for that alias
- Digest pin mismatch — alias resolves to a source ID but the content digest does not match the declared pin
- Input exceeds 32 aliases or 32 sources — request rejected with validation error
- dataClass not set to 'public' or 'synthetic' — schema validation failure
- nonpersonalMetadata not set to true — request rejected
- Empty aliases or sources array — minimum 1 item required error

## How this service works

Resolve caller-declared source aliases against exact source IDs and content digest pins. No URL resolution, private filesystem access or inferred source equivalence. Offline typed nonpersonal metadata only. Result retention: 24 hours; minimal receipt metadata: 90 days.

## Output

An audit report mapping each caller-declared source alias to its resolved exact source ID and content digest pin, flagging any mismatches or unresolvable aliases. Results are retained for 24 hours; minimal receipt metadata is retained for 90 days. No URL resolution or private filesystem access is performed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "aliases": {
   "type": "array",
   "maxItems": 32,
   "minItems": 1
  },
  "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-identifier-crosswalk-audit-1dee34c4/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)