Most developers know about the big APIs (Google, AWS, Stripe). But there's a growing ecosystem of specialized APIs that solve real problems and won't cost you a dime to start.
Here are 5 APIs with free tiers that I use in production. Each one saves hours of building custom scrapers or paying for expensive enterprise tools.
1. Google Maps Scraper — Local Business Intelligence
Problem: Google Places API costs $17/1K requests. You need local business data for a lead gen tool.
curl "https://google-maps-scraper12.p.rapidapi.com/google-maps-scraper/search?query=dentist+new+york" \
-H "X-RapidAPI-Key: YOUR_KEY" -H "X-RapidAPI-Host: google-maps-scraper12.p.rapidapi.com"
Returns: business name, phone, address, rating, reviews, website, coordinates.
2. Email Extractor — Contact Discovery
Problem: You have a list of company websites but need email addresses for outreach.
curl "https://email-extractor1.p.rapidapi.com/email-extractor/extract?url=https://example.com" \
-H "X-RapidAPI-Key: YOUR_KEY" -H "X-RapidAPI-Host: email-extractor1.p.rapidapi.com"
Returns: all email addresses found on the page, deduplicated.
3. DuckDuckGo Search — Privacy-First Web Search
Problem: Google Custom Search has a 100 queries/day free limit. You need more.
curl "https://duckduckgo-search11.p.rapidapi.com/duckduckgo-search/search?query=best+crm+tools" \
-H "X-RapidAPI-Key: YOUR_KEY" -H "X-RapidAPI-Host: duckduckgo-search11.p.rapidapi.com"
Returns: title, URL, description for each result. No tracking.
4. Website Tech Detector — Competitive Analysis
Problem: BuiltWith charges $295/month. You need to know what tech a competitor uses.
curl "https://website-tech-detector2.p.rapidapi.com/website-tech-detector/detect?url=https://stripe.com" \
-H "X-RapidAPI-Key: YOUR_KEY" -H "X-RapidAPI-Host: website-tech-detector2.p.rapidapi.com"
Returns: frameworks, CMS, analytics, CDN, hosting — everything.
5. Indeed Job Scraper — Labor Market Data
Problem: Indeed has no public API. You need structured job listing data.
curl "https://indeed-job-scraper.p.rapidapi.com/indeed-job-scraper/search?query=software+engineer&location=remote" \
-H "X-RapidAPI-Key: YOUR_KEY" -H "X-RapidAPI-Host: indeed-job-scraper.p.rapidapi.com"
Returns: title, company, salary, location, description, posting date.
Quick Comparison
| API | Replaces | Cost of Alternative | Free Tier |
|---|---|---|---|
| Google Maps Scraper | Google Places API | $17/1K requests | Yes |
| Email Extractor | Hunter.io | $49/month | Yes |
| DuckDuckGo Search | Google Custom Search | $5/1K queries | Yes |
| Website Tech Detector | BuiltWith | $295/month | Yes |
| Indeed Job Scraper | — (no API exists) | Custom scraper | Yes |
All five are available on RapidAPI with free tiers. No credit card needed to start.
Pro tip: Combine them for powerful workflows — use Maps to find businesses, Email Extractor to get contacts, and Tech Detector to qualify leads by their tech stack.
👉 Browse all APIs by Donny Digital on RapidAPI
Related APIs by Donny Digital
- Google Maps Scraper — Extract local business data
- Apollo Lead Scraper — B2B lead generation
- Email Extractor — Find emails from any website
- DuckDuckGo Search — Privacy-first web search
- Indeed Job Scraper — Job market data
- Website Tech Detector — Competitive tech analysis
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