EDGAR recent IPO filings (S-1 / 424B4)

Recently-filed S-1 (initial registration) or 424B4 (final prospectus - actual priced IPO) filings across all US issuers. Send GET /api/edgar-recent-ipos with no required fields (3 optional) and pay $0.005 per call over x402 or MPP (there is no free tier). It returns a JSON object with form, windowDays, startDate, endDate, total and 2 more.

Default returns S-1 filings (companies preparing to IPO) in the last 30 days; pass form=424B4 for actual IPOs that priced. Source: EDGAR full-text search. ?days=30&form=S-1

Category: Live public data · Tags: edgar sec ipo S-1 424B4 prospectus registration new-listings

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Parameters

Example request

curl -i "https://agent402.tools/api/edgar-recent-ipos?days=30&form=S-1&limit=25"

Without payment this returns HTTP 402 Payment Required with the exact price for edgar-recent-ipos; any x402 v2 or MPP client pays it and retries.

Example response

{
  "form": "S-1",
  "windowDays": 30,
  "startDate": "2025-10-19",
  "endDate": "2025-11-18",
  "total": 142,
  "returned": 25,
  "filings": [
    {
      "accessionNumber": "0001213900-25-099999",
      "form": "S-1",
      "filedDate": "2025-11-17",
      "cik": "0001999888",
      "displayNames": [
        "Example Newco Inc."
      ],
      "url": "https://www.sec.gov/Archives/edgar/data/1999888/000121390025099999/exfiling.htm",
      "primaryDocument": "exfiling.htm"
    }
  ]
}

From an MCP client

catalog.call {
  "slug": "edgar-recent-ipos",
  "params": {
    "days": 30,
    "form": "S-1",
    "limit": 25
  }
}

The hosted connector at https://agent402.tools/mcp needs a payment for edgar-recent-ipos; the stdio package pays it from a wallet or from AGENT402_CREDITS_KEY. Local install: npx -y agent402-mcp.

Errors and behavior

• Every field is optional. An input the tool rejects returns an HTTP 4xx whose body carries error, tool, expected, required and example.
• A paid call that ends in any status of 400 or above is not charged over x402, MPP or a prepaid credits key: settlement is cancelled when the tool fails. The exception is a Tempo push credential, a transfer the buyer sent before the call: it settles before the tool runs, so if the tool then fails the payment is recorded as a refund owed to the paying wallet.
• Wallet-only: this tool reaches the network or stored state, so it has no proof-of-work tier. A prepaid card-credits key issued earlier (Authorization: Bearer a402_...) also pays it.
• A POST with a JSON body to /api/edgar-recent-ipos is served as this GET, with the body as the input.
• An Idempotency-Key header makes a retried paid call replay the first 200 instead of charging again (an answer larger than 1 MB is not replayed).

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
client.setSpendControls?.(false); // keep your own spending ceiling in code
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/edgar-recent-ipos?days=30&form=S-1&limit=25");

Part of these workflows

EDGAR recent IPO filings (S-1 / 424B4) is one step in these 2 skill packs, each sold as a single call:

• SEC regulatory monitoring - The 'who just filed / who just bought / what just IPO'd / what does the full-text search say' monitoring loop. Five EDGAR tools composed: full-text search for a keyword, surface recent filings on the matched companies, pull insider Form 4 transactions, pull 13F institutional holdings changes, and check the IPO calendar. Different from sec-filings-deep-dive (which goes deep on one company's earnings) - this is the wide-and-recent radar.
• IPO watch - What companies are going public? Recent S-1/IPO filings from EDGAR plus a web search for IPO news.

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