VOL. XCIV, NO. 247
★ BEST INVESTING TOOLS COMPARISON ★
NO ADVICE
Thursday, January 8, 2026
Tool Comparison
Marketstack vs OpenCorporates comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
OpenCorporates
opencorporates.com
Comparison highlights
- Tool score: the chart below shows community vote sentiment over the last 8 weeks. Use it as a signal, not a verdict.
- Overlap: both cover Data APIs.
- Coverage tilt: Marketstack has 5 categories you won't get in OpenCorporates; OpenCorporates has 2 unique categories.
Vote sentiment comparison
Cumulative positive vote share. Loading fresh totals...
Side-by-side metrics
| Attribute | Marketstack | OpenCorporates |
|---|---|---|
Asset types Supported asset classes and universes | Stocks, ETFs, Bonds, Commodities, Other | Other |
Experience levels Who each product is built for | 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 |
Tested Verified by hands-on testing inside Find My Moat | Not yet | Not yet |
Editor pick Featured inside curated shortlists | Standard listing | Standard listing |
Coverage overlap
Marketstack strengths
Categories covered by Marketstack but not OpenCorporates.
OpenCorporates strengths
Categories covered by OpenCorporates but not Marketstack.
Frequently Asked Questions
Which workflows do Marketstack and OpenCorporates both support?
Both platforms cover Data APIs workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do Marketstack and OpenCorporates require subscriptions?
Both Marketstack and OpenCorporates keep freemium access with optional paid upgrades, so you can trial each platform before committing.
How can you access Marketstack and OpenCorporates?
Both Marketstack and OpenCorporates 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?
Marketstack differentiates itself with Pricing tiers with monthly request limits (Free: 100/mo; Basic: 10k/mo; Professional: 100k/mo; Business: 500k/mo; Enterprise: custom)., V2 REST/JSON API for end-of-day (EOD) prices with adjusted fields for splits/dividends (e.g., `split_factor`, `dividend`)., and Intraday endpoint supports multiple bar intervals (down to `1min`); “Real-Time Updates” (1/5/10 min) are Professional+ only., whereas OpenCorporates stands out for 230M+ company records spanning 145+ jurisdictions, aggregated from 140+ official registries with full provenance and source links., Versioned REST API with JSON (default) or XML output; API keys required. Free tier provides up to 200 requests per month (50 per day)., and OpenRefine Reconciliation API allows entity-matching from company names to legal identifiers..
Other tools you might like
These profiles share overlapping coverage with both sides of this matchup.
- Fiscal.aiEditor's pickHands-on review
Overlap: ETF Holdings, Dividends, and Analyst Recommendations.
ETF HoldingsDividendsAnalyst Recommendations - Financial Modeling Prep (FMP)Hands-on review
Overlap: Data APIs, Dividends, and Splits.
Data APIsDividendsSplits - Intrinio
Overlap: Data APIs, ETF Holdings, and Dividends.
Data APIsETF HoldingsDividends - OpenBB
Overlap: Data APIs, Dividends, and Splits.
Data APIsDividendsSplits - EODHD (EOD Historical Data)Editor's pickHands-on review
Overlap: Data APIs, Dividends, and Splits.
Data APIsDividendsSplits - GuruFocusEditor's pickHands-on review
Overlap: Data APIs, Dividends, and ETF Holdings.
Data APIsDividendsETF Holdings
Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.