# 2s.io IPO Calendar

> 2s.io IPO Calendar is a paid API for AI agents from 2s.io, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-16).

Returns a list of companies going public (or recently public) in a given date window, including expected date, ticker symbol, exchange, price range, share count, total offering value, and IPO status.

## Facts

- Endpoint: GET https://2s.io/api/calendar/ipo
- Price: $0.0025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/2s-io-ipo-calendar-90a57ffa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kFtU1Ej3lyXKm8B2BVZaW

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 2s-io-ipo-calendar-90a57ffa
```

Example prompt: Show me all IPOs happening between March 1 and April 30, 2025 — I want to see each company's name, ticker, exchange, price range, and whether it's priced or still expected.

## When to prefer this

Use this endpoint when you need structured, up-to-date IPO calendar data including pricing, exchange, and status details — especially when building financial dashboards, screening upcoming public offerings, or monitoring market activity. Preferred over manual research or generic web search when machine-readable structured IPO data is required.

## Known failure modes

- Invalid date format (not YYYY-MM-DD) returns an error or empty result
- Date range too wide may return incomplete or truncated data
- No IPOs in the requested window returns an empty list
- Service unavailable or payment failure returns a non-200 HTTP status

## How this service works

IPO calendar — companies going public (or recently public) in a date window, with the expected date, symbol, name, exchange, price range, number of shares, total offering value, and status (expected/priced/filed/withdrawn). Pass a from/to window (YYYY-MM-DD; defaults to a ±30-day span around today). Data by Finnhub.

## Output

A list of IPO events within the requested date window, each including the company name, ticker symbol, exchange (e.g. NASDAQ/NYSE), expected or actual IPO date, share price range (low/high), number of shares offered, total offering value in USD, and current status (expected, priced, filed, or withdrawn). Powered by Finnhub data.

## 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",
    "queryParams"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "required": [],
     "properties": {
      "to": {
       "type": "string",
       "description": "End date YYYY-MM-DD."
      },
      "from": {
       "type": "string",
       "description": "Start date YYYY-MM-DD."
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/2s-io-ipo-calendar-90a57ffa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 2s.io](https://www.zero.xyz/host/2s.io/llms.txt)