marketstack API
Financial data APIs
Financial services software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
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$8.99 per month
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Free version
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- Information technology and software
- Banking and insurance
- Media and communications
What is marketstack API
marketstack API is a REST API for retrieving market data such as end-of-day (EOD) prices, intraday data, and historical time series for equities and exchanges. It is used by developers and data teams to power dashboards, analytics, backtesting, and data enrichment workflows. The service focuses on programmatic access via HTTP endpoints with JSON responses and account-based usage limits rather than embedded financial services capabilities like payments or account connectivity.
Developer-friendly REST interface
The product provides a straightforward HTTP/JSON API that fits common application architectures. It supports typical market-data retrieval patterns such as symbol lookup and time-bounded historical queries. This reduces integration effort for teams that need market prices inside web apps, scripts, or data pipelines.
Historical and intraday coverage
marketstack includes endpoints for historical time series and intraday pricing, enabling use cases like charting, monitoring, and quantitative research. Access to both granular and aggregated data supports multiple latency and storage strategies. This is useful for applications that need to combine recent updates with longer-term history.
Clear usage-based access model
The service is typically consumed via API keys with tiered request limits and plan-based entitlements. This makes it easier to forecast cost and manage throughput compared with bespoke data feeds. It also supports controlled access for multiple environments (e.g., development vs. production) through separate credentials.
Not a financial services platform
marketstack focuses on market data retrieval and does not provide payment processing, money movement, or account-linking capabilities. Teams building end-to-end financial products often need additional providers for onboarding, compliance, and transaction workflows. This can increase vendor count and integration complexity.
Data scope varies by plan
Coverage (exchanges, symbols, intraday granularity, and historical depth) can depend on subscription tier and may not match institutional-grade feeds. Some advanced datasets commonly needed in trading or risk systems (e.g., corporate actions depth, fundamentals, or real-time consolidated feeds) may require separate sources. Buyers should validate required instruments, time zones, and update frequency during evaluation.
Rate limits and latency constraints
API-based delivery introduces request limits and network latency that can constrain high-frequency or high-volume workloads. Applications that require near-real-time streaming or very large batch downloads may need caching, queuing, or alternative delivery methods. Operational resilience also depends on the provider’s uptime and the client’s retry/backoff implementation.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Free | $0 per month (Free forever) | 100 requests / month; End-of-Day data; 1 year history; Splits & Dividends; Stock tickers info; 2700+ exchanges; Currencies & timezones; HTTPS encryption; No support. |
| Basic | $9.99 per month (monthly) or $8.99 per month (billed yearly) | 10,000 requests / month; Overage $0.001998 per extra request; End-of-Day + IEX intraday (US); Up to 10 years history; Splits & Dividends; Stock tickers; 2700+ exchanges; Bonds & ETF holdings; Standard support; Commercial use. Platinum Support add-on: $479.88 billed annually. |
| Professional | $49.99 per month (monthly) or $43.99 per month (billed yearly) | 100,000 requests / month; Overage $0.0009998 per extra request; End-of-Day + IEX intraday (US); 15+ years history; Real-time updates & real-time stock prices; Commodity prices & history; Bonds; ETF holdings; Standard support; Commercial use. Platinum Support add-on: $599.88 billed annually. |
| Business | $149.99 per month (monthly) or $127.99 per month (billed yearly) | 500,000 requests / month; Overage $0.00059996 per extra request; End-of-Day + IEX intraday (US); 15+ years history; Real-time updates & real-time stock prices; Company ratings/statements/details; Commodity prices; Standard support; Commercial use. Platinum Support add-on: $719.88 billed annually. |
| Enterprise | Custom pricing (contact sales / Request Quote) | Volume requests & custom solutions; Tailored SLAs and features; Contact sales for quote. |
Seller details
apilayer GmbH
Vienna, Austria
Private
https://mailboxlayer.com/
https://x.com/apilayer
https://www.linkedin.com/company/apilayer/
