# Regulatory Change Impact Brief

> Regulatory Change Impact Brief is a paid API for AI agents from api.x402-engine.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-17).

Monitors regulatory and policy changes for a specified jurisdiction, topic, and industry, returning cited changes, effective dates, source conflicts, and a hash-bound delivery receipt.

## Facts

- Endpoint: POST https://api.x402-engine.com/v1/regulatory-change?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/regulatory-change-impact-brief-f75e2fd4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_g2pD-qabioSkIr2hGL8_R

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 regulatory-change-impact-brief-f75e2fd4 -d '<json body>'
```

Example prompt: Give me a decision-ready regulatory change brief for the EU fintech industry covering the last 90 days, flagging any conflicts between authoritative sources and noting effective dates for any new rules.

## When to prefer this

Choose this endpoint when you need decision-ready, cited regulatory intelligence for a specific jurisdiction and industry, especially when source conflict detection and cryptographic delivery receipts are required for auditability. Prefer it over generic web search when you need structured JSON output with effective dates, authoritative citations, and hash-bound provenance for compliance workflows.

## Known failure modes

- No relevant regulatory changes found for the specified jurisdiction/topic/industry combination in the lookback window
- Invalid or unrecognized jurisdiction string returns an error or empty result
- lookback_days or freshness_days outside allowed range (1-3650) causes validation failure
- Conflicting authoritative sources may be flagged but not resolved — agent must adjudicate
- Payment failure via x402 protocol prevents response delivery
- Stale cache hit if freshness_days is set too high relative to actual regulatory activity

## How this service works

Decision-ready monitoring of regulatory and policy change for a named jurisdiction, topic and industry. Returns cited changes, effective dates, authoritative-source conflicts and a locally verifiable hash-bound delivery receipt.

## Output

A structured JSON brief containing: cited regulatory changes with source URLs and publication dates, effective dates for each change, flagged conflicts between authoritative sources, a lookback window summary, and a locally verifiable hash-bound delivery receipt confirming data integrity and provenance.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "depth": {
   "type": "string",
   "const": "standard",
   "title": "Depth",
   "default": "standard"
  },
  "topic": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 240,
     "minLength": 1
    },
    {
     "type": "null"
    }
   ],
   "title": "Topic",
   "default": null
  },
  "output": {
   "type": "string",
   "const": "json",
   "title": "Output",
   "default": "json"
  },
  "industry": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 160,
     "minLength": 1
    },
    {
     "type": "null"
    }
   ],
   "title": "Industry",
   "default": null
  },
  "question": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 4000,
     "minLength": 3
    },
    {
     "type": "null"
    }
   ],
   "title": "Question",
   "default": null
  },
  "jurisdiction": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 120,
     "minLength": 2
    },
    {
     "type": "null"
    }
   ],
   "title": "Jurisdiction",
   "default": null
  },
  "lookback_days": {
   "type": "integer",
   "title": "Lookback Days",
   "default": 90,
   "maximum": 3650,
   "minimum": 1
  },
  "freshness_days": {
   "type": "integer",
   "title": "Freshness Days",
   "default": 30,
   "maximum": 3650,
   "minimum": 1
  },
  "effective_after": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 32
    },
    {
     "type": "null"
    }
   ],
   "title": "Effective After",
   "default": null
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/regulatory-change-impact-brief-f75e2fd4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402-engine.com](https://www.zero.xyz/host/api.x402-engine.com/llms.txt)