MarketAux vs Mediastack

Marketaux focuses on financial and stock-market news, tagging articles with entities, tickers, and a -1 to +1 sentiment score across over 200,000 entities and 5,000+ sources in 30+ languages. The free plan allows 100 requests/day returning up to 3 articles each; paid Basic through Pro 50K tiers raise both the daily request cap and articles-per-request limit, plus unlock the entity-level Market Stats endpoint. Access is JSON over a single API-key parameter.

mediastack (now operated under APILayer) aggregates live and historical news and blog articles from thousands of worldwide sources into a single JSON REST endpoint keyed by an access_key parameter. Its free plan is capped at 100 calls/month with delayed news data and HTTP-only access — HTTPS, real-time delivery, and historical search all require moving to a paid Standard plan or higher.