# Federal Register Regulatory & Enforcement Document Search

> Federal Register Regulatory & Enforcement Document Search is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Searches the US Federal Register for regulatory and enforcement documents (rules, proposed rules, notices) mentioning a named business entity, filtered optionally by agency.

## Facts

- Endpoint: GET https://payai.agentstools.dev/legal/regulatory
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/federal-register-regulatory-enforcement-document-search-cf5034b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bJ8BquNfawIbP92pGlhxL

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 federal-register-regulatory-enforcement-document-search-cf5034b5
```

Example prompt: Can you pull up any Federal Register rules, proposed rules, or enforcement notices mentioning Meta Platforms — up to 15 documents — and filter to just the Federal Trade Commission?

## When to prefer this

Use this endpoint when you need to quickly surface US federal regulatory and enforcement activity for a specific business entity without manually searching the Federal Register website. Prefer it over general web search when you need structured, typed results (rule vs. proposed rule vs. notice) with metadata like agency and date, and when public-domain sourcing is important for compliance or legal research workflows.

## Known failure modes

- Entity name too generic, returning unrelated or zero results
- Agency slug not recognized, resulting in no filter being applied or an error
- Limit parameter out of range (must be 1–25), returning a validation error
- No matching documents found for obscure or newly formed entities
- Rate limit or payment authorization failure returning a 402 response

## How this service works

Find US federal regulatory and enforcement documents mentioning an entity in the Federal Register. Returns rules, proposed rules and notices with title, type, agency, date, abstract and link. Source: Federal Register, public-domain.

## Output

A list of up to 25 Federal Register documents mentioning the queried entity, each including title, document type (rule, proposed rule, or notice), issuing agency, publication date, abstract summary, and a direct link to the full document on the Federal Register.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "cik": {
       "type": "string",
       "description": "Optional SEC CIK id hint"
      },
      "qid": {
       "type": "string",
       "description": "Optional Wikidata QID id hint"
      },
      "name": {
       "type": "string",
       "description": "Business entity name to search"
      },
      "limit": {
       "type": "integer",
       "maximum": 25,
       "minimum": 1,
       "description": "Max documents to return, default 10"
      },
      "agency": {
       "type": "string",
       "description": "Optional agency slug filter, e.g. federal-trade-commission"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/federal-register-regulatory-enforcement-document-search-cf5034b5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from payai.agentstools.dev](https://www.zero.xyz/host/payai.agentstools.dev/llms.txt)