MarketStack
MarketStack is a REST API platform providing real-time, intraday, and historical stock market data for 170,000+ tickers across 70+ exchanges, serving developers, financial application builders, and academic institutions globally under the apilayer / Idera portfolio.
- Company typePrivate
- Founded2018
- HeadquartersVienna, Austria
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What MarketStack does
MarketStack is a REST API platform delivering real-time, intraday, and historical stock market data, operated by apilayer Data Products GmbH, a Vienna-based subsidiary of the US conglomerate Idera, Inc. The product was launched in its current form in 2018 as a free, cost-effective alternative to Yahoo Finance, and today covers 170,000+ stock tickers across 70+ global exchanges, 750+ market indices, and 2,700+ stock exchanges, with US data licensed through Tiingo, Inc. In 2025, the company expanded into fundamental data by adding six EDGAR endpoints providing access to SEC filings (10-K, 10-Q, 8-K) and US GAAP accounting concepts. The core technology is a JSON-based REST API built on scalable cloud infrastructure with 256-bit HTTPS encryption, reportedly handling millions of API requests per hour at near-100% uptime.
MarketStack firmographics
Firmographics- Name
- MarketStack
- Legal name
- apilayer Data Products Data Products GmbH
- Website
- https://marketstack.com
- Company type
- Private
- Founded year
- 2018
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- MarketStack is a REST API platform providing real-time, intraday, and historical stock market data for 170,000+ tickers across 70+ exchanges, serving developers, financial application builders, and academic institutions globally under the apilayer / Idera portfolio.
- Ownership category
- akta.pro rank
MarketStack industry classification
Industry- Product category
- Financial Data API
- NAICS
- Financial Transactions Processing, Reserve, and Clearinghouse Activities (522320)
- SIC
- Services-Computer Processing & Data Preparation (7374)
- akta.pro primary industry
- Real-Time Market Data Feeds & Terminals (FSAFAIAA)
Keywords
Where MarketStack is headquartered
LocationHeadquarters
- HQ city
- Vienna
- HQ country
- Austria
- HQ region
- Europe
Offices1 record
Markets served
MarketStack business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Operations, Personnel, Marketing or Sales
Revenue model
- Subscription Plans: Tiered subscription model with monthly or annual billing. Plans range from free (100 requests/month) to Business (500,000 requests/month). Annual billing provides up to 15% savings. Revenue generated through recurring subscription fees.
- Overage Fees: Usage-based overage charges apply when customers exceed their monthly API request quota. Overage pricing varies by plan: Basic $0.003996/call, Professional $0.0019996/call, Business $0.00119992/call. System allows 5% overdraft beyond quota before service disruption.
- Platinum Support: Optional premium support tier available as add-on. Annual pricing: Standard Plan $479.88/yr, Professional $599.88/yr, Professional Plus $719.88/yr, Enterprise custom pricing. Includes dedicated account team, priority support, and quarterly briefings.
- Enterprise Custom Solutions: Custom volume-based pricing for enterprise customers with high-volume requirements. Tailored solutions available through sales contact.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier with limited functionality for developers to get started |
| Subscription | Monthly | Entry-level paid tier with intraday data access |
| Subscription | Monthly | Mid-tier with real-time updates and full history |
| Subscription | Monthly | High-tier with comprehensive data and company information |
| Subscription | Multi-year contract | Custom enterprise solution for high-volume requirements |
| Subscription | Annual | Platinum Support premium add-on |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels7 records
MarketStack product offering
Product offeringCore offering
MarketStack is a REST API that delivers real-time, intraday, and historical end-of-day stock market data for 70,000+ tickers across 70+ global stock exchanges. It enables developers and businesses to integrate reliable financial market data into trading platforms, investment research tools, fintech applications, and academic projects.
Product overview
MarketStack is a unified stock market data API platform that provides real-time, intraday, and historical market data. The core product is the MarketStack API, which offers access to 170,000+ stock tickers from 70 global exchanges. The platform operates on a tiered pricing model with Free, Basic, Professional, Business, and Enterprise plans, each offering different data access levels, request limits, and features. The EDGAR Filings API is a sub-product providing SEC company filings data through dedicated endpoints. Platinum Support is an optional add-on available across paid tiers.
Differentiator
Problem solved
Functional benefit
Products and services
- MarketStack API REST API providing real-time, intraday, and historical end-of-day stock market data for 70,000+ tickers across 70+ global stock exchanges. Targets developers, fintech companies, financial institutions, trading platforms, and academic researchers building financial applications.
- EDGAR Filings API API that delivers real-time and historical SEC EDGAR filings data for U.S. public companies. Targets developers, fintech firms, and researchers building tools that require access to regulatory filings, financial statements, insider transactions, and other company disclosures.
Quantifiable outcome
- 30,000+ companies and 80+ universities trust MarketStack for stock market data
- +1 more outcomes
Companies that use MarketStack
Customer profileNamed customers2 records
Segments1 record
Ideal customer profiles2 records
MarketStack technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature6 records
MarketStack partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Tiingo, Inc.coreTiingo, Inc. serves as the licensed data provider for US stock market data. MarketStack sources and licenses stock market data from United States exchanges through Tiingo out of New York City, USA, ensuring high-authority, reliable financial data for US markets.
Scale indicators10 records
Recent moves4 records
Expansion highlights4 records
MarketStack competitors and assessment
Company assessmentBroad incumbents
- Refinitiv (LSEG): Global financial market data and infrastructure provider with extensive equities, fixed income, and reference data products. Overlaps with MarketStack's core coverage but targets enterprise and institutional customers with bundled, premium offerings.
- Yahoo Finance (API / unofficial): Long-standing free consumer and developer market data source, which MarketStack originally positioned itself as a modern, reliable alternative to. Continues to compete for developer mindshare and free-tier users.
- Nasdaq Data Link (formerly Quandl): Nasdaq-owned financial and alternative data marketplace offering equities, fundamentals, and a broad alternative data catalog. Competes with MarketStack on core US stock and fundamentals data but with a much wider data universe and institutional positioning.
Direct peers
- Finnhub: Provides a REST API for real-time US stock, forex, and crypto data plus alternative data and fundamentals. Competes head-to-head with MarketStack for fintech and developer customers, with overlapping freemium and enterprise tiers.
- Alpha Vantage: Offers a stock, forex, and crypto data API with a free tier and paid plans aimed at developers. Closely comparable to MarketStack in pricing model, target audience, and core equity/forex/crypto coverage.
- Tiingo: End-of-day and intraday US stock data API with fundamentals and crypto. Both a direct competitor and MarketStack's upstream US data partner, making it the most strategically entangled peer in the dataset.
- Polygon.io: Provides real-time and historical US stock, options, forex, and crypto market data via REST and WebSocket APIs. Directly competes with MarketStack in the developer-focused, freemium-to-enterprise stock data API category.
- Twelve Data: Offers real-time and historical financial market data APIs covering stocks, ETFs, forex, and crypto. Directly comparable freemium/PLG pricing structure, multi-asset coverage, and developer-first positioning.
- IEX Cloud (from IEX): Cloud-based market data API originally built on IEX exchange data, with US equities, mutual funds, and reference data. Comparable product surface, pricing tiers, and developer onboarding experience to MarketStack.
- Intrinio: Provides a financial data platform with US and international stock, ETF, and fundamentals APIs plus fintech-focused data feeds. Competes with MarketStack for fintech and SMB customers seeking standardized data APIs.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
MarketStack social profiles
Digital presenceMarketStack financial estimates
Financial estimateRevenue estimate
Valuation estimate
MarketStack leadership team
Management profileNumber of profiles
MarketStack funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
MarketStack M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about MarketStack
What does MarketStack do?
MarketStack is a REST API that delivers real-time, intraday, and historical end-of-day stock market data for 70,000+ tickers across 70+ global stock exchanges. It enables developers and businesses to integrate reliable financial market data into trading platforms, investment research tools, fintech applications, and academic projects.
Is MarketStack a public or private company?
MarketStack is a private company. It is classified as corporate owned and is currently operating.
When was MarketStack founded?
MarketStack was founded in 2018. It employs 1 to 10 people.
Where is MarketStack based?
MarketStack is headquartered in Vienna, Austria, in the Europe region.
How does MarketStack make money?
Four revenue lines are on record. Subscription Plans are the primary driver. The others are overage Fees, platinum Support and enterprise Custom Solutions.
Who are MarketStack's main competitors?
Broad incumbents on record are Refinitiv (LSEG), Yahoo Finance (API / unofficial) and Nasdaq Data Link (formerly Quandl). Direct peers are Finnhub, Alpha Vantage, Tiingo, Polygon.io, Twelve Data, IEX Cloud (from IEX) and Intrinio.
Does MarketStack have an API?
Yes. REST API delivering worldwide stock market and EDGAR data in JSON format. Provides real-time stock prices for 30,000+ tickers, intraday data from IEX, 15+ years of historical EOD data, and access to 500,000+ stock tickers. Supports authentication via unique access key appended to API endpoint URL. Features 256-bit HTTPS encryption available on both free and paid plans. The API handles millions of concurrent requests per day on scalable cloud infrastructure. Developer documentation is at docs.apilayer.com/marketstack/docs/api-documentation.
What industry is MarketStack in?
MarketStack's product category is Financial Data API. Its primary akta.pro industry code is FSAFAIAA, Real-Time Market Data Feeds & Terminals. Its NAICS code is 522320 and its SIC code is 7374.