Marketstack vs OpenCorporates comparison

Marketstack focuses on Data APIs, Dividends, and Splits while OpenCorporates specializes in Data APIs, Regulatory Filings Monitoring, and Other. They overlap in 1 categories, so choose based on your preferred workflow and pricing.

Good news—both Marketstack and OpenCorporates offer free plans. You can try each platform without commitment and only pay when you need premium features.

OpenCorporates is more beginner-friendly with an approachable interface. Both can work for intermediate users.

Yes, both platforms offer API access for developers and quants who want to build custom integrations or automate their workflows.

Choose Marketstack if you need Pricing tiers with monthly request limits (Free: 100/mo; Basic: 10k/mo; Professional: 100k/mo; Business: 500k/mo; Enterprise: custom)., and V2 REST/JSON API for end-of-day (EOD) prices with adjusted fields for splits/dividends (e.g., `split_factor`, `dividend`).. Go with OpenCorporates if 230M+ company records spanning 145+ jurisdictions, aggregated from 140+ official registries with full provenance and source links., and Versioned REST API with JSON (default) or XML output; API keys required. Free tier provides up to 200 requests per month (50 per day). better fits how you invest.

Both cover Other. Marketstack also includes Stocks, ETFs, Bonds, and Commodities.

Marketstack offers real-time data feeds, which is essential for active traders. OpenCorporates uses delayed or end-of-day data, which works fine for longer-term investors who don't need up-to-the-second quotes.

OpenCorporates supports data exports to CSV, and JSON. Marketstack has more limited export options.