# AnswerPool IPO Calendar

> AnswerPool IPO Calendar is a paid API for AI agents from answerpool.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns a consolidated IPO pipeline snapshot — filed S-1/F-1s, amendments, priced 424(b)(4)s, and withdrawals — across four EDGAR stages in a single call.

## Facts

- Endpoint: GET https://answerpool.io/v1/ipo/calendar
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/answerpool-ipo-calendar-d2cc2d9c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ch4oro1AoEpMcuW527fUy

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-ipo-calendar-d2cc2d9c
```

Example prompt: Pull the full IPO pipeline for the last 60 days — filed S-1s and F-1s, amendments, priced 424(b)(4)s, and withdrawals — and give me up to 50 entries per stage.

## When to prefer this

Choose this endpoint when you need a unified IPO pipeline snapshot without composing multiple EDGAR form-type queries yourself. It's ideal for financial research agents, market monitoring workflows, and investment screening tools that need all four pipeline stages (filed, amending, priced, withdrawn) in one structured response. Prefer it over raw EDGAR queries when you want normalized, structured JSON output sorted by recency.

## Known failure modes

- days parameter out of range (must be 1–180) returns a validation error
- limit parameter out of range (must be 1–100) returns a validation error
- EDGAR upstream latency may cause slow or stale responses
- Payment failure (x402) if USDC balance is insufficient
- Some filings may lack ticker or company name (null values in those fields)

## 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A JSON object with an as_of timestamp and window_days field, plus four arrays — filed, amending, priced, and withdrawn — each containing IPO filings sorted newest first. Each filing includes the accession number, CIK, company name, ticker (if available), form type, filing date, and direct EDGAR URL.

## 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": "CalendarIn",
     "properties": {
      "days": {
       "type": "integer",
       "title": "Days",
       "default": 30,
       "maximum": 180,
       "minimum": 1,
       "description": "Length in days of the filing-date window ending today, used for every stage."
      },
      "limit": {
       "type": "integer",
       "title": "Limit",
       "default": 25,
       "maximum": 100,
       "minimum": 1,
       "description": "Maximum issuers returned per pipeline stage (filed, amending, priced, withdrawn), most recently filed first. Applied to each stage separately. Default 25."
      }
     },
     "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": "2026-09-02T23:00:00Z",
  "filed": [
   {
    "cik": "0001999999",
    "url": "https://www.sec.gov/Archives/edgar/data/1999999/000143774926028920-index.htm",
    "form": "S-1",
    "filed": "2026-08-29",
    "ticker": null,
    "company": "EXAMPLE ROBOTICS INC",
    "accession": "0001437749-26-028920"
   }
  ],
  "priced": [],
  "amending": [],
  "withdrawn": [],
  "window_days": 30
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/answerpool-ipo-calendar-d2cc2d9c/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)