VOL. XCIV, NO. 247
★ BEST INVESTING TOOLS COMPARISON ★
NO ADVICE
Tuesday, January 6, 2026
Tool Comparison
OpenCorporates vs SEC API (sec-api.io) comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
OpenCorporates
opencorporates.com
SEC API (sec-api.io)
sec-api.io
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, and Regulatory Filings Monitoring.
- Coverage tilt: OpenCorporates has 1 categories you won't get in SEC API (sec-api.io); SEC API (sec-api.io) has 7 unique categories.
- Curation signals: SEC API (sec-api.io): Editor's pick + Hands-on review.
Vote sentiment comparison
Cumulative positive vote share. Loading fresh totals...
Side-by-side metrics
| Attribute | OpenCorporates | SEC API (sec-api.io) |
|---|---|---|
Asset types Supported asset classes and universes | Other | 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 |
Tested Verified by hands-on testing inside Find My Moat | Not yet | Yes |
Editor pick Featured inside curated shortlists | Standard listing | Highlighted |
Coverage overlap
Shared categories
Categories where both tools offer overlapping coverage.
SEC API (sec-api.io) strengths
Categories covered by SEC API (sec-api.io) but not OpenCorporates.
Frequently Asked Questions
Which workflows do OpenCorporates and SEC API (sec-api.io) both support?
Both platforms cover Data APIs, and Regulatory Filings Monitoring workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do OpenCorporates and SEC API (sec-api.io) require subscriptions?
Both OpenCorporates 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 OpenCorporates and SEC API (sec-api.io)?
Both OpenCorporates 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?
OpenCorporates differentiates itself with 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., 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..
Other tools you might like
These profiles share overlapping coverage with both sides of this matchup.
- SEC EDGAR - Company Filings (Full‑Text Search & Search Filings)Editor's pickHands-on review
Overlap: Regulatory Filings Monitoring, IPO, and Insider Data.
Regulatory Filings MonitoringIPOInsider Data - GuruFocusEditor's pickHands-on review
Overlap: Data APIs, IPO, and Financials.
Data APIsIPOFinancials - Financial Modeling Prep (FMP)Hands-on review
Overlap: Data APIs, IPO, and Financials.
Data APIsIPOFinancials - Fiscal.aiEditor's pickHands-on review
Overlap: Financials, Insider Data, and 13F.
FinancialsInsider Data13F - Alpha VantageHands-on review
Overlap: Data APIs, IPO, and Financials.
Data APIsIPOFinancials - Benzinga
Overlap: IPO, Financials, and Insider Data.
IPOFinancialsInsider Data
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.