# OpenUtau Character YAML Change Audit

> OpenUtau Character YAML Change Audit is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Audits JSON-encoded before/after snapshots of an OpenUtau character YAML document, reporting added/removed/changed paths and introduced/resolved schema validation errors using a pinned SchemaStore definition.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-schema-openutau-character-yaml-0c9fe012-changes?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openutau-character-yaml-change-audit-8422adab
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gmN-G_uDRZ_VNVnfgKlC4

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 openutau-character-yaml-change-audit-8422adab -d '<json body>'
```

Example prompt: Can you audit my OpenUtau character YAML change? Here's the before version and the updated after version — I want to know which fields were added, removed, or changed, and whether any new schema validation errors were introduced or old ones resolved.

## When to prefer this

Choose this endpoint when you specifically need to audit changes to an OpenUtau character YAML file against its SchemaStore schema definition, comparing a before and after state to pinpoint exactly which fields changed and whether schema compliance improved or regressed. Prefer it over generic JSON diff tools when OpenUtau-specific schema rule reporting (introduced/resolved errors, rule violations) is needed.

## Known failure modes

- Document exceeds 100 KB limit — request rejected
- Nesting deeper than 32 levels — parsing refused
- Input is not valid JSON — error returned before schema evaluation
- SchemaStore definition unavailable or outdated on host — may affect accuracy
- Non-JSON formats (YAML, TOML) passed raw — not parsed, must be pre-converted to JSON

## How this service works

Change audit: OpenUtau character yaml: Audit JSON changes and validate before/after for OpenUtau character yaml. 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

Returns a structured report including JSON pointers for all added, removed, and changed paths between the before and after documents, along with a list of validation rule violations that were newly introduced or resolved relative to the pinned OpenUtau character YAML 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/openutau-character-yaml-change-audit-8422adab/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)