Alpha Vantage
Finance
Realtime and historical stock data
API keyCORSHTTPS
IEX
Realtime stock data
Shut down 31 August 2024
IEX has been shut down
No longer available. IEX's original free market-data API was replaced by IEX Cloud, and IEX Cloud itself shut down on 31 August 2024.
- Price
- Shut down
- API key
- No new keys issued
- Shut down
- 31 August 2024
Use one of these instead of IEX
Finnhub
Finance
Real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto
API keyCORSHTTPS
Twelve Data
Finance
Stock market data (real-time & historical)
API keyHTTPS
Checked by hand on 2026-10-24 against IEX Cloud historical reference. Providers change their terms, so confirm on their own pages before you commit.
API key
No new keys issued
HTTPS
Supported
Browser calls
No, needs a proxy
Status
Shut down
Overview & Architectural Role
IEX provides programmatic access to realtime stock data. Delivered over secure HTTPS protocols, it exposes structured endpoints designed to integrate cleanly into modern frontend frameworks, backend microservices, and automated data pipelines without requiring local database provisioning.
Who it is built for
Engineers building web dashboards, mobile applications, CLI utilities, or background cron workers in need of reliable finance data feeds.
Architectural Advantage
Consuming IEX removes the operational overhead of running custom scrapers, orchestrating headless browser fleets, or manually seeding and maintaining a local database. Instead of reverse-engineering volatile DOM layouts or dealing with anti-bot IP blocks, your application connects directly to a standardized JSON interface designed for backend ingestion with consistent schema schemas. Dedicated authentication ensures rate quotas and credential tracking per project environment.
Where this listing comes from
Aggregated from one public source (public-api-lists), then normalised and checked by us.
Report an issue with this listing ↗Other Finance APIs
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Finance
Which US business banking providers accept founders by country of residence, with sources
No keyCORSHTTPS
Binlist
Finance
Public access to a database of IIN/BIN information
No keyCORSHTTPS
Econdb
Finance
Global macroeconomic data
No keyCORSHTTPS
FilingFirehose
Finance
Structured SEC EDGAR filings with body-text-classified 8-Ks, activist-tagged 13D/G, and ATM-offering detection in S-3 / 424B5
No keyCORSHTTPS
Futures Clock
Finance
Trading hours and session windows for 65 futures products on 16 global exchanges
No keyCORSHTTPS
Helious
Finance
US Treasury auction results with the tail and bidder split, plus scored economic releases
No keyCORSHTTPS
IEX — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is the IEX API still available?
No. No longer available. IEX's original free market-data API was replaced by IEX Cloud, and IEX Cloud itself shut down on 31 August 2024. Working alternatives: Alpha Vantage, Finnhub, Twelve Data. Checked on 2026-10-24.
Is the IEX API free?
No longer available. IEX's original free market-data API was replaced by IEX Cloud, and IEX Cloud itself shut down on 31 August 2024. Checked on 2026-10-24.