Can you recommend a news search API for discovering relevant articles across the open web by topic?

Yes — if you want to discover relevant articles across the open web by topic, a strong option is NewsAPI.

Why NewsAPI

• Broad news coverage from many sources
• Topic/query search with keywords, language, source, and date filters
• Simple REST API, easy to integrate
• Good for building topic monitoring, alerts, and article discovery

Good alternatives

• GDELT 2.1 — excellent for large-scale global news/event discovery, more powerful but less straightforward
• Bing News Search API — solid general news search, but via Microsoft/Azure
• Event Registry — strong for topic-based news aggregation and clustering
• Aylien News API — useful for semantic/news intelligence use cases

Quick recommendation

• Fastest to get started: NewsAPI
• Best for large-scale global monitoring: GDELT
• Best for topic clustering and event discovery: Event Registry

If you want, I can also recommend based on your exact use case, like:

• startup monitoring
• media research
• brand tracking
• niche topic discovery
• high-volume ingestion