# fittings Federal Rulemaking Document Search

> fittings Federal Rulemaking Document Search is a paid API for AI agents from fittings.sh, paid per call via x402, $0.00447/call, status unknown (last checked 2026-09-14).

Full-text searches federal rulemaking documents on Regulations.gov, returning title, agency, docket, type, posted date, and comment deadline.

## Facts

- Endpoint: GET https://fittings.sh/v1/regulations/document-search
- Price: $0.00447/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fittings-federal-rulemaking-document-search-acaced46
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cwDpwDDPlfSgjQyW_UqdD

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 fittings-federal-rulemaking-document-search-acaced46
```

Example prompt: Search Regulations.gov for proposed rules about PFAS chemicals from the EPA — show me up to 20 results including their comment deadlines.

## When to prefer this

Use this endpoint when you need to search federal rulemaking documents on Regulations.gov — particularly when tracking proposed rules, open comment periods, or agency-specific regulatory activity. Prefer this over general web search when you need structured metadata like docket IDs, posted dates, and comment deadlines directly from the official federal rulemaking database.

## Known failure modes

- No documents found for obscure or misspelled search terms
- Regulations.gov API outage or rate limiting causing timeout
- Invalid agencyId acronym returning empty results
- documentType filter value not matching the accepted enum causing no results
- Result limit out of range (must be 1–50)

## How this service works

Searches federal rulemaking documents on Regulations.gov, returning title, agency, docket, type, posted date and comment deadline.

## Output

Returns a list of federal rulemaking documents matching the search, each including the document title, issuing agency, docket ID, document type (e.g. Rule, Proposed Rule, Notice), date posted, and comment deadline where applicable.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "query"
     ],
     "properties": {
      "limit": {
       "type": "number",
       "description": "1-50, default 10"
      },
      "query": {
       "type": "string",
       "description": "Full-text search term"
      },
      "agencyId": {
       "type": "string",
       "description": "Optional agency acronym, e.g. EPA"
      },
      "documentType": {
       "type": "string",
       "description": "Optional filter: Notice | Rule | Proposed Rule | Supporting & Related Material | Other"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fittings-federal-rulemaking-document-search-acaced46/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fittings.sh](https://www.zero.xyz/host/fittings.sh/llms.txt)