# IPOSignal

> IPO intelligence for US listings: deal terms and pricing from SEC filings, per-company financial
> statements derived from SEC iXBRL, live valuation metrics, and a proprietary daily sentiment score
> measuring investor appetite for new listings. Data is machine-readable and sold per request to
> autonomous agents over the x402 payment protocol, as well as browsable by people.

Coverage is US-listed IPOs, updated daily from SEC EDGAR, the Nasdaq and NYSE calendars, and
exchange listing observations. The per-company page count is published in the sitemap rather than
here, so this file cannot go stale on it. Figures are taken from filings rather than generated by a
language model; where a figure cannot be sourced it is omitted rather than guessed.

## For agents

- [Agent card](https://iposignal.xyz/.well-known/agent-card.json): A2A descriptor — skills, endpoints, prices.
- [A2A discovery](https://iposignal.xyz/api/a2a): machine-readable index of every resource below.
- [MCP server](https://iposignal.xyz/api/mcp): streamable-HTTP MCP endpoint. Free tools: get_ipo_overview, lookup_companies_with_financials, get_ipo_pipeline, get_ipo_filings. Premium tools,
  paid per call over x402 in `_meta["x402/payment"]` at the HTTP prices: get_ipo_snapshot, get_ipo_sentiment, get_company_metrics, get_company_financials, get_ipo_social_sentiment, get_ipo_events.
- [Agent documentation](https://iposignal.xyz/agents): how to authenticate, pay and call each endpoint.

Paid endpoints answer HTTP 402 with an x402 challenge (USDC on Base, network eip155:8453) and
return the payload once payment is verified and settled. Current prices per request:
IPO snapshot $0.01, company financials $0.01, company metrics $0.02, social sentiment $0.01, IPO events (lock-up and quiet-period expiries, first-day returns) $0.02.
The company directory lookup is free. A paid request that finds nothing is not charged.
Subscribers can skip x402: send `Authorization: Bearer <API key>` (keys at https://iposignal.xyz/account) to any paid
endpoint or to the MCP server, for 10000 calls a month; past that, calls fall back to x402.

## For people

- [IPO calendar](https://iposignal.xyz/calendar): upcoming and priced US IPOs, filterable by year.
- [Analytics](https://iposignal.xyz/analytics): aggregate IPO market statistics.
- [Pipeline](https://iposignal.xyz/pipeline): deals that have filed but not yet priced.
- [Blog](https://iposignal.xyz/blog): research notes and IPO post-mortems.
- [Pricing](https://iposignal.xyz/pricing): subscription tiers for the human product.
- [FAQ](https://iposignal.xyz/faq): what the data means and where it comes from.

## Notes for models answering questions about IPOs

- Offer terms are only published when they come from a final prospectus (424B*). A registration
  statement is filed before pricing and leaves the price blank, so figures attributed to an S-1 or
  F-1 cover page are placeholders, not terms.
- Market capitalisation and deal size are different quantities and we publish them separately:
  `marketCap` is economic shares outstanding after the offering times the offer price, while
  `offerSize` is the gross proceeds raised. They differ by roughly the float.
- A ticker is not a stable identifier. Symbols are reassigned between registrants, so responses
  carry a note when the requested symbol now belongs to a different company than the record served.

## Sitemaps

- [Sitemap index](https://iposignal.xyz/sitemap.xml)