COMPARISON
Catalayer vs Finnhub
Finnhub offers broad financial data including news, fundamentals, and earnings. Catalayer specializes in real-time news monitoring with AI classification.
Finnhub
$119/month (Professional) or free (limited)
Financial data API — stocks, forex, crypto
Catalayer (Free or Plus)
Free to $99/month
3x cheaper at comparable tier
Finnhub is a comprehensive financial data API covering stock prices, earnings, insider transactions, SEC filings, and news. Catalayer focuses on the news and intelligence layer with deeper financial publisher coverage and AI-powered event classification.
Feature Comparison
| Feature | Finnhub | Catalayer |
|---|---|---|
| Stock prices, fundamentals, earnings | Yes (strong suite) | No — Catalayer covers news and intelligence only |
| News API | Yes (general financial news) | Yes — 50+ sources, <60s latency, ticker + topic + AI tags |
| AI event classification | Sentiment only | Yes — event type, directional impact, relevance 0-100 |
| WebSocket stream | Yes (price + trades) | Yes (news stream) |
| Keyword monitors + alert delivery | No | Yes — boolean Monitor rules |
When Each Wins
When Finnhub wins
- You need stock prices, earnings estimates, and insider data alongside news
- You prefer a single API vendor for price + news data
When Catalayer wins
- Deeper financial news coverage with AI event classification
- Keyword Monitor alerts delivered to workspace, email, or desktop
Migration / Coexistence
Finnhub for price and fundamentals data, Catalayer for news — the two APIs are complementary.
FAQ
How does Catalayer News API compare to Finnhub news?
Catalayer covers 50+ financial publishers with sub-60-second latency and AI event classification. Finnhub news aggregates general financial news without real-time streaming.
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