# AnswerPool Withdrawn Registrations

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 AnswerPool Withdrawn Registrations is a paid API for AI agents from answerpool.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns a list of SEC registration statements withdrawn in the last N days (RW and AW filings), sorted newest first with issuer details and filing links.

## Facts

- Endpoint: GET https://answerpool.io/v1/ipo/withdrawn
- 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- Canonical page: https://www.zero.xyz/c/answerpool-withdrawn-registrations-a725842e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LwtLLhTJMs58Hb6CzcwCi

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zero fetch --capability answerpool-withdrawn-registrations-a725842e
```

Example prompt: Pull the dead-deal list from AnswerPool — show me all SEC registration statements withdrawn in the last 30 days, up to 50 filings, with the company names and links to each filing.

## When to prefer this

Use this endpoint when you specifically need to track IPO or registration statement withdrawals (RW/AW form types) from SEC EDGAR in a single API call. It is the best choice for building dead-deal monitors, analyzing failed IPO pipelines, or identifying companies that abandoned public offering plans. Prefer this over general SEC EDGAR search when you want pre-filtered, recency-sorted withdrawal filings without needing to parse raw EDGAR full-text search results.

## Known failure modes

- Invalid days parameter (outside 1–365 range) returns a validation error
- Invalid limit parameter (outside 1–100 range) returns a validation error
- Payment not provided or insufficient USDC results in a 402 Payment Required response
- No withdrawn filings in the requested window returns an empty filings array with count 0
- SEC EDGAR data source temporarily unavailable may return a service 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

A JSON object containing the timestamp (as_of), the lookback window in days, a count of matching filings, and an array of filing records each with accession number, CIK, company name, ticker, form type (RW or AW), filing date, and a direct SEC EDGAR URL. Also includes a method_id, an optional note, and a standard disclaimer that this is not investment advice.

## 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": "WithdrawnIn",
     "properties": {
      "days": {
       "type": "integer",
       "title": "Days",
       "default": 60,
       "maximum": 365,
       "minimum": 1,
       "description": "Length in days of the RW/AW filing-date window ending today."
      },
      "limit": {
       "type": "integer",
       "title": "Limit",
       "default": 50,
       "maximum": 100,
       "minimum": 1,
       "description": "Maximum withdrawal filings returned, most recently filed first."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "RW/AW cover withdrawal of any registration statement, not only IPOs.",
  "as_of": "2026-09-02T23:00:00Z",
  "count": 1,
  "filings": [
   {
    "cik": "0001999998",
    "url": "https://www.sec.gov/Archives/edgar/data/1999998/000143774926028921-index.htm",
    "form": "RW",
    "filed": "2026-08-20",
    "ticker": null,
    "company": "EXAMPLE THERAPEUTICS INC",
    "accession": "0001437749-26-028921"
   }
  ],
  "window_days": 60
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/answerpool-withdrawn-registrations-a725842e/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)