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Best Free Weather API for Accurate Global Weather Data

apixu.com

Discover weatherstack, the best free weather API providing real-time, historical, and forecast weather data worldwide. Start using our weather REST API today.

45
Partial
Agentic Readiness Score
+25 llms.txt +15 structured API missing +20 ai-plugin
Raise this score to 95+
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data llms-txtapi

Agentic Signals

📄
llms.txt ↗
Found
🤖
ai-plugin.json
Not found
📖
OpenAPI Spec
Not found
🔗
Structured API
Found
🛡
AI Bot Access (robots.txt) ↗
Not specified
🏷
Schema.org Markup
Found
⚙
MCP Server
Not found

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Agentic Ready 45/100 

            

        

        

        
        

            
llms.txt Content

            




<!DOCTYPE html>
<html class="weatherstack index" lang="en">
   <head>

      <meta charset="utf-8">
      <title>Best Free Weather API for Accurate Global Weather Data</title>
	  <!-- Google Schema -->
		
	  
      <!-- Google Tag Manager -->
<script>
	(function(w, d, s, l, i) {
		w[l] = w[l] || [];
		w[l].push({
			'gtm.start': new Date().getTime(),
			event: 'gtm.js'
		});
		var f = d.getElementsByTagName(s)[0],
			j = d.createElement(s),
			dl = l != 'dataLayer' ? '&l=' + l : '';
		j.async = true;
		j.src =
			'https://www.googletagmanager.com/gtm.js?id=' + i + dl;
		f.parentNode.insertBefore(j, f);
	})(window, document, 'script', 'dataLayer', "GTM-K58DCFS");
</script>
<!-- End Google Tag Manager --><script>
    window.portalId = 22;
    window.portalName = "weatherstack";
    window.userType = "anon";
    window.userId = 0;
    window.customerType = "";
    window.currentPlan = "";
    window.billingCycle = "";
    window.userCountry = "";
    window.userEmail = "";
</script>
<script src="/js/shared/utmreftracking.min.js"></script>
<script src="/js/shared/gtm_tracking.js"></script>

      <script>
    window.stripePublishableKey = 'pk_live_SbOhR0mPK55dMckhtbSufjdM';
</script>

      <meta name="google-site-verification" content="yDCufI3fgc3DdreycuEwJML88yWxFkTOIv-zorrtGuQ"/>

      <meta name="description" content="Discover weatherstack, the best free weather API providing real-time, historical, and forecast weather data worldwide. Start using our weather REST API today." />
      <meta name="keywords" content="weatherstack, real-time weather, weather forecasts, historical weather data, weather api, weather data php, world weather api, current weather api, weather forecasts API," />
				<meta name="h1" content="Real-Time & Historical World Weather Data API" />
	
	  <meta name="viewport" content="width=device-width, initial-scale=1.0">
	  <meta name="facebook-domain-verification" content="68ni86tlyu91elhzob3vu4dxafstlr" />



	  <!-- Open Graph Tag - Weathers