
IPO calendars, filing stages and estimated lockup dates.
Segmara API is a free Finance API that requires User-Agent authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
Use Segmara's five public IPO JSON feeds in your research, newsletter or website. Free with attribution and a link to the source page.
Details from segmara.com.

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The Segmara API is provided by Segmara (segmara.com). Use Segmara's five public IPO JSON feeds in your research, newsletter or website. Free with attribution and a link to the source page.
Yes. The Segmara API is listed in the Finance category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The Segmara API uses User-Agent authentication, so you need to register for credentials before making requests.
Yes. The Segmara API supports CORS, so front-end JavaScript can call it directly.
Yes. The Segmara API is served over HTTPS, so it's safe to use in production.