# Change Audit: Gaspar Schema Validator

> Change Audit: Gaspar Schema Validator is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Validates and audits JSON changes (before/after documents) against a pinned Gaspar SchemaStore definition, reporting added/removed/changed paths and introduced/resolved errors.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-schema-gaspar-c8f37f24-changes?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/change-audit-gaspar-schema-validator-cecaf8d7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1GwqgVqVo7GiPom66wYwy

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 change-audit-gaspar-schema-validator-cecaf8d7 -d '<json body>'
```

Example prompt: Can you audit my Gaspar JSON config change — here's the before document and the after document — and tell me what paths were added, removed, or changed, and whether any new schema rule violations were introduced?

## When to prefer this

Choose this endpoint when you specifically need to validate JSON changes against the Gaspar SchemaStore schema definition, with detailed before/after diffing and schema rule violation tracking. Prefer it over generic JSON diff tools when Gaspar-specific schema compliance matters.

## Known failure modes

- Document exceeds 100 KB limit — request rejected
- JSON nesting exceeds 32 levels — parsing refused
- YAML or TOML input provided instead of JSON — not supported
- Malformed JSON in before or after field — parse error returned
- Gaspar schema definition unavailable or pinned version mismatch — validation may fail

## How this service works

Change audit: Gaspar: Audit JSON changes and validate before/after for Gaspar. Uses a pinned SchemaStore definition on this PC. Reports JSON pointers and rule violations, added/removed/changed paths and introduced/resolved errors. Up to 100 KB per document; no YAML/TOML parsing or deployment/security guarantee. 0.01 USDC includes one two-document change audit.

## Output

A structured report listing JSON pointers for all added, removed, and changed paths between the before and after documents, plus any schema rule violations that were introduced or resolved, all validated against the pinned Gaspar SchemaStore definition.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "after": {
   "default": {
    "agent_market_example": true
   },
   "description": "JSON value to validate; maximum 100 KB, 32 levels."
  },
  "before": {
   "default": {},
   "description": "JSON value to validate; maximum 100 KB, 32 levels."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/change-audit-gaspar-schema-validator-cecaf8d7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)