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Public APIs · by APILayerData from public-apis (MIT)
  1. Home
  2. /Finance
  3. /Helious
Finance
Helious logo

Helious

US Treasury auction results with the tail and bidder split, plus scored economic releases.

Helious API is a free Finance API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.

Authentication
None required
HTTPS
Yes
CORS
Yes
Category
Finance
Visit documentation ↗helious.io

About Helious

US market data for people and agents: a REST API and an MCP server, with a free tier that needs no account.

Provider
Helious
Website
helious.io ↗

Details from helious.io.

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Helious API alternatives

Halal Terminal logo

Halal Terminal

Shariah-compliant stock and ETF screening across 5 methodologies, zakat and purification

apiKeyHTTPSCORS
Helium logo

Helium

News with media bias scoring, balanced news synthesis, live market data, AI options pricing

No authHTTPSCORS
Goldprice.dev logo

Goldprice.dev

Cross-validated gold, silver & copper spot, futures & 30-year history in 13 currencies

No authHTTPSCORS ?
Hotstoks logo

Hotstoks

Stock market data powered by SQL

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FXNewsBias logo

FXNewsBias

AI-scored news sentiment for the 8 major forex currencies, refreshed every 3 hours

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IBAN Analyzer logo

IBAN Analyzer

Resolve an IBAN to its bank name, BIC, city and address for 60+ countries

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Helious API FAQ

Who provides the Helious API?

The Helious API is provided by Helious (helious.io). US market data for people and agents: a REST API and an MCP server, with a free tier that needs no account.

Is the Helious API free?

Yes. The Helious 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 Helious API require an API key?

No. The Helious API requires no authentication, so you can start making requests without signing up.

Can I call the Helious API from the browser?

Yes. The Helious API supports CORS, so front-end JavaScript can call it directly.

Does the Helious API support HTTPS?

Yes. The Helious API is served over HTTPS, so it's safe to use in production.