FinanceapiKeyHTTPSCORS ?
Finance
Duceus API
Not rated yet · Be the first to rate itInsider (PDMR) trades and major shareholdings from EU, EEA and UK registers, in one schema.
Duceus API is a free Finance API that requires apiKey authentication, is served over HTTPS and does not support CORS, so it should be called from a server.
- Authentication
- apiKey
- HTTPS
- Yes
- CORS
- No
- Category
- Finance
- Uptime (30 days)
- Up
Visit documentation ↗duceusapi.com
Online · 2543 msTested Nov 15, 2026 · checked dailyIs it down? Status & uptime
About Duceus
Reference for the Duceus REST API: authentication, rate limits, endpoints and response fields.
- Provider
- Duceus
- Website
- duceusapi.com ↗
Details from duceusapi.com.
Key facts
- HTTPS
Stock market data with one API key
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Duceus API FAQ
Who provides the Duceus API?
The Duceus API is provided by Duceus (duceusapi.com). Reference for the Duceus REST API: authentication, rate limits, endpoints and response fields.
Is the Duceus API free?
Yes. The Duceus 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.
Does the Duceus API require an API key?
Yes. The Duceus API uses apiKey authentication, so you need to register for credentials before making requests.
Can I call the Duceus API from the browser?
Not directly. The Duceus API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Does the Duceus API support HTTPS?
Yes. The Duceus API is served over HTTPS, so it's safe to use in production.
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Show that Duceus is listed on Public APIs. The badge displays its developer rating once it has one.
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