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Алексей Спинов
Алексей Спинов

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

#webdev #javascript #api #beginners

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
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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
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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
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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
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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
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Returns developer questions with vote scores.

6. arXiv API 

https://export.arxiv.org/api/query?search_query=all:electric+vehicles&max_results=10
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Returns academic papers with abstracts. Leading indicator of industry trends.

7. npm Registry 

https://registry.npmjs.org/-/v1/search?text=electric+vehicles&size=10
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Returns package ecosystem data.

8. Reddit JSON 

https://www.reddit.com/search.json?q=electric+vehicles&sort=top&t=week
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Returns community sentiment and trending discussions.

9. PyPI API 

https://pypi.org/pypi?:action=search&term=electric+vehicles&submit=search
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Returns Python packages in the space.

How I Use These Together

I built an MCP server that queries all 9 in parallel and returns a structured JSON report in under 5 minutes. The tool generates market overviews with real data — not ChatGPT hallucinations.

Key insight: API-first scraping (querying JSON endpoints) beats HTML parsing. These endpoints rarely break on redesigns.

All 9 sources are free and require no API keys. I've generated 500 market research reports using this stack.

Resources:

Need data extracted from a specific website? I build custom scrapers starting at $20. Email: Spinov001@gmail.com

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