VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View Alpha Vantage View SEC API (sec-api.io)Back to Home

Head-to-head

Alpha Vantage vs SEC API (sec-api.io) comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

Alpha Vantage adds News, News Sentiment, Calendar, Dividends, Splits, Delisted, Inflation Rates, Unemployment Rates, GDP, Interest Rates, Options & Derivatives, ETF Holdings, Transcripts, and Sheets / Excel Add-ins coverage that SEC API (sec-api.io) skips.

SEC API (sec-api.io) includes Regulatory Filings Monitoring, 13F, 13D/13G, Financials, and Management Compensation categories that Alpha Vantage omits.

Alpha Vantage highlights: Equity time series for global stocks (intraday down to 1-minute, plus daily/weekly/monthly) with 20+ years of history, including pre- and post-market support and adjustment toggles for splits and dividends., US options coverage with real-time and historical data spanning over 15 years, including optional greeks and implied volatility outputs in JSON or CSV., and Fundamentals and corporate actions such as company overviews, financials, dividends, splits, plus ETF profiles and holdings..

SEC API (sec-api.io) is known for: Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings., Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN)., and Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares..

Alpha Vantage

alphavantage.co

Hands-on review

REST APIs delivering global market data in JSON and CSV. The free tier allows 25 requests per day, while premium plans remove limits and unlock real-time and 15-minute delayed US equities plus real-time US options. Entitlements and account management are handled through the Alpha X Terminal.

Platforms

Web

API

Pricing

Free

Subscription

Quick highlights

Equity time series for global stocks (intraday down to 1-minute, plus daily/weekly/monthly) with 20+ years of history, including pre- and post-market support and adjustment toggles for splits and dividends.
US options coverage with real-time and historical data spanning over 15 years, including optional greeks and implied volatility outputs in JSON or CSV.
Fundamentals and corporate actions such as company overviews, financials, dividends, splits, plus ETF profiles and holdings.
Corporate calendars: earnings announcements, IPO schedules, listings, and delisting status.
Alpha Intelligence datasets with market news and sentiment, earnings call transcripts, insider transactions, and daily gainers/losers.

Community votes (overall)

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SEC API (sec-api.io)

sec-api.io

Editor’s pick Hands-on review

A commercial API suite for SEC/EDGAR data, designed for developers, quants, and compliance teams. The free tier includes 100 calls per month. Paid tiers unlock higher rate limits, more data (5 GB vs 15 GB monthly, with $0.30/GB overage), and features such as multiple API keys or redistribution rights for enterprise users. The platform emphasizes speed, with new filings typically available in under 300 ms.

Platforms

Web

API

Pricing

Free

Subscription

Quick highlights

Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings.
Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN).
Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares.
Historical coverage back to 1993 with support for all 400+ EDGAR form types; new filings made available within ~300 ms of posting.
Live filing feeds available in real time via WebSocket for instant integration.

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Overlap

Shared focus areas

4 overlaps

Mutual strengths include Data APIs, IPO, and Insider Data plus 1 more area.

Where they differ

Alpha Vantage

Distinct strengths include:

Equity time series for global stocks (intraday down to 1-minute, plus daily/weekly/monthly) with 20+ years of history, including pre- and post-market support and adjustment toggles for splits and dividends.
US options coverage with real-time and historical data spanning over 15 years, including optional greeks and implied volatility outputs in JSON or CSV.
Fundamentals and corporate actions such as company overviews, financials, dividends, splits, plus ETF profiles and holdings.
Corporate calendars: earnings announcements, IPO schedules, listings, and delisting status.

SEC API (sec-api.io)

Distinct strengths include:

Regulatory Filings Monitoring

13F

13D/13G

Financials

Management Compensation

Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings.
Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN).
Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares.
Historical coverage back to 1993 with support for all 400+ EDGAR form types; new filings made available within ~300 ms of posting.

Feature-by-feature breakdown

Attribute	Alpha Vantage	SEC API (sec-api.io)
Categories Which research workflows each platform targets	Shared: Data APIs, IPO, Insider Data, APIs & SDKs Unique: News, News Sentiment, Calendar, Dividends, Splits, Delisted, Inflation Rates, Unemployment Rates, GDP, Interest Rates, Options & Derivatives, ETF Holdings, Transcripts, Sheets / Excel Add-ins	Shared: Data APIs, IPO, Insider Data, APIs & SDKs Unique: Regulatory Filings Monitoring, 13F, 13D/13G, Financials, Management Compensation
Asset types Supported asset classes and universes	Stocks, ETFs, Options, Currencies, Cryptos, Commodities, Mutual Funds	Stocks, ETFs, Mutual Funds, Funds
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web, API	Web, API
Pricing High-level pricing models	Free, Subscription	Free, Subscription
Key features Core capabilities called out by each vendor	Unique Equity time series for global stocks (intraday down to 1-minute, plus daily/weekly/monthly) with 20+ years of history, including pre- and post-market support and adjustment toggles for splits and dividends. US options coverage with real-time and historical data spanning over 15 years, including optional greeks and implied volatility outputs in JSON or CSV. Fundamentals and corporate actions such as company overviews, financials, dividends, splits, plus ETF profiles and holdings. Corporate calendars: earnings announcements, IPO schedules, listings, and delisting status. Alpha Intelligence datasets with market news and sentiment, earnings call transcripts, insider transactions, and daily gainers/losers. Coverage across FX and crypto exchange rates (including intraday), commodities (oil, metals, agriculture), and US macro indicators like GDP, CPI, interest rates, and unemployment.	Unique Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings. Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN). Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares. Historical coverage back to 1993 with support for all 400+ EDGAR form types; new filings made available within ~300 ms of posting. Live filing feeds available in real time via WebSocket for instant integration. XBRL-to-JSON service delivers standardized financial statements (income, balance sheet, cash flow) mapped to US GAAP items; dataset is survivorship-bias free.
Tested Verified by hands-on testing inside Find My Moat	Yes	Yes
Editor pick Featured inside curated shortlists	Standard listing	Highlighted

Frequently Asked Questions

Which workflows do Alpha Vantage and SEC API (sec-api.io) both support?

Both platforms cover Data APIs, IPO, Insider Data, and APIs & SDKs workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do Alpha Vantage and SEC API (sec-api.io) require subscriptions?

Both Alpha Vantage and SEC API (sec-api.io) keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Alpha Vantage and SEC API (sec-api.io)?

Both Alpha Vantage and SEC API (sec-api.io) prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

Alpha Vantage differentiates itself with Equity time series for global stocks (intraday down to 1-minute, plus daily/weekly/monthly) with 20+ years of history, including pre- and post-market support and adjustment toggles for splits and dividends., US options coverage with real-time and historical data spanning over 15 years, including optional greeks and implied volatility outputs in JSON or CSV., and Fundamentals and corporate actions such as company overviews, financials, dividends, splits, plus ETF profiles and holdings., whereas SEC API (sec-api.io) stands out for Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings., Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN)., and Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares..

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