# AnswerPool Docket Citers

> AnswerPool Docket Citers is a paid API for AI agents from answerpool.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns which public companies cite a specific agency docket ID or RIN in their SEC filings, with filing counts and dates per registrant.

## Facts

- Endpoint: GET https://answerpool.io/v1/impact/docket
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/answerpool-docket-citers-7b789734
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YxOz658Jr_RJRZScus2bO

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 answerpool-docket-citers-7b789734
```

Example prompt: Which public companies have cited RIN 3235-AN00 in their SEC filings over the past year? Give me up to 50 results with filing counts and the most recent filing date for each.

## When to prefer this

Use this endpoint when you need to identify which specific SEC-registered public companies have cited a known agency docket ID or RIN in their EDGAR filings. It's the right choice when you have a concrete regulatory identifier and want to map corporate disclosure engagement around a single rulemaking — distinct from full-text EDGAR search (which is phrase-based without docket structure) or insider transaction screens.

## Known failure modes

- Neither docket_id nor rin provided — returns error requiring at least one identifier
- Invalid RIN format (must match pattern NNNN-XXXX) — returns validation error
- Invalid docket_id format — returns validation error
- No filings found matching the identifier within the lookback window — returns empty companies array
- lookback_days out of range (must be 30–1825) — returns validation error
- limit out of range (must be 1–100) — returns validation error
- Payment failure — x402 payment not processed, returns 402 error

## How this service works

AnswerPool turns SEC EDGAR, the Federal Register, USAspending, NIH, BLS and OpenAlex into structured JSON answers that AI agents and developers fetch in one call. 69 endpoints free, no account; derived analyses $0.02–$0.05 per call by card credits or USDC (x402). MCP server, full provenance.

## Output

Returns a JSON object containing the query string used, timestamp, total filing matches, count of companies, and an array of company records each with CIK, company name, number of matching filings, form types cited, latest filing date, and matched text snippets. Also includes a disclaimer and method identifier.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "title": "DocketCitersIn",
     "properties": {
      "rin": {
       "anyOf": [
        {
         "type": "string",
         "pattern": "^[0-9]{4}-[A-Z0-9]{2,6}$",
         "maxLength": 12
        },
        {
         "type": "null"
        }
       ],
       "title": "Rin",
       "default": null,
       "description": "Regulation Identifier Number, formatted NNNN-XXNN (e.g. 3235-AN00), searched as an exact phrase in filings. Give rin or docket_id; docket_id wins."
      },
      "limit": {
       "type": "integer",
       "title": "Limit",
       "default": 25,
       "maximum": 100,
       "minimum": 1,
       "description": "Maximum companies returned, most matching filings first."
      },
      "docket_id": {
       "anyOf": [
        {
         "type": "string",
         "pattern": "^[A-Za-z0-9._/-]+$",
         "maxLength": 60,
         "minLength": 2
        },
        {
         "type": "null"
        }
       ],
       "title": "Docket Id",
       "default": null,
       "description": "Agency docket id searched as an exact phrase in filings, e.g. EPA-HQ-OAR-2021-0317. Give docket_id or rin; docket_id wins if both are set."
      },
      "lookback_days": {
       "type": "integer",
       "title": "Lookback Days",
       "default": 365,
       "maximum": 1825,
       "minimum": 30,
       "description": "Length in days of the SEC filing-date window ending today."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "as_of": "2026-09-02T20:00:00Z",
  "count": 1,
  "query": "SEC-2026-001",
  "companies": [
   {
    "cik": "0000320193",
    "forms": [
     "8-K"
    ],
    "company": "Apple Inc.",
    "filings": 1,
    "matched": [
     "SEC-2026-001"
    ],
    "latest_filed": "2026-08-15"
   }
  ],
  "total_filing_matches": 7
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/answerpool-docket-citers-7b789734/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from answerpool.io](https://www.zero.xyz/host/answerpool.io/llms.txt)