# Change Audit: host.json

> Change Audit: host.json is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).

Audits JSON changes to host.json files by validating before/after documents against a pinned SchemaStore definition, reporting added/removed/changed paths and introduced/resolved errors.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-schema-host-json-cbd1b9ab-changes?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/change-audit-host-json-27bf281d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LG9gXeTHMdMX15r-qL5pd

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-host-json-27bf281d -d '<json body>'
```

Example prompt: Can you audit my host.json change? Here's the before version: {} and the after version has 'extensions' and 'logging' sections added — check what paths changed, any new schema violations, and whether any existing errors got resolved.

## When to prefer this

Choose this endpoint when you specifically need to audit changes to a host.json configuration file (typically used in Azure Functions) against a pinned SchemaStore definition. It is purpose-built for before/after change comparison with schema validation, making it ideal for CI/CD review workflows, PR audits, or pre-deployment checks on host.json. Prefer it over generic JSON diff tools when you need SchemaStore-backed rule violation detection and structured error reporting for this specific file type.

## Known failure modes

- Document exceeds 100 KB limit — request rejected
- JSON nesting deeper than 32 levels — parsing refused
- Malformed JSON input for before or after fields — validation cannot proceed
- Invalid or non-JSON content type submitted — error returned
- Network or payment failure — no audit result returned

## How this service works

Change audit: host.json: Audit JSON changes and validate before/after for host.json. 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 detailing JSON pointers for all added, removed, and changed paths between the before and after documents, along with any schema rule violations that were introduced or resolved, validated against a pinned SchemaStore definition for host.json.

## 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-host-json-27bf281d/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)