9 Free Public APIs for Market Research (No API Key Required)

If you're building AI agents or market research tools, here are 9 public APIs that return structured data without requiring any API keys or authentication: 1. Wikipedia API https://en.wikipedia.org/w/api.php?action=query&list=search&srsearch=electric+vehicles&format=json Returns article snippets, word counts, and timestamps. Great for market overviews. 2. Google News RSS https://news.google.com/rss/search?q=electric+vehicles&hl=en Returns latest 100 news articles with titles, sources, and publication dates. 3. GitHub Search API https://api.github.com/search/repositories?q=electric+vehicles&sort=stars Returns repos, stars, forks, languages. Shows the technology landscape. 4. Hacker News API https://hn.algolia.com/api/v1/search?query=electric+vehicles&tags=story Returns community discussions with points and comment counts. 5. Stack Overflow API https://api.stackexchange.com/2.3/search?order=desc&sort=votes&intitle=electric+vehicles&site=stackoverflow Returns developer questions with vote