MapLibre GL JS

This example adds the current temperature data as a fill layer to a MapLibre GL map using the Weather API vector tile source.

const API_KEY = "YOUR_API_KEY";
    const map = new maplibregl.Map({
      container: "map",
      style: "https://styles.maptoolkit.net/maptoolkit/maptoolkit.summer.json?api_key=" + API_KEY,
      center: [13.0, 47.5],
      zoom: 5,
    });
    map.on("load", () => {
      map.addSource("weather", { type: "vector", url: `https://weather.maptoolkit.net/vector/icon.0.json?api_key=${API_KEY}` });
      const firstSymbolId = (map.getStyle().layers.find((l) => l.type === "symbol") || {}).id;

      map.addLayer({
        id: "weather-temperature", type: "fill", source: "weather", "source-layer": "temperature",
        paint: {
          "fill-color": ["interpolate", ["linear"], ["get", "degree"], -20, "#313695", 0, "#74add1", 10, "#fee090", 20, "#f46d43", 35, "#a50026"],
          "fill-opacity": 0.6,
        },
      }, firstSymbolId);
    });

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/maplibre-gl.js"></script>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/maplibre-gl.css" />
  <style>
    html, body { width: 100%; height: 100%; margin: 0; padding: 0; }
    #map { width: 100%; height: 100%; }
  </style>
</head>
<body>
  <div id="map"></div>
  <script>
    const API_KEY = "YOUR_API_KEY";
    const map = new maplibregl.Map({
      container: "map",
      style: "https://styles.maptoolkit.net/maptoolkit/maptoolkit.summer.json?api_key=" + API_KEY,
      center: [13.0, 47.5],
      zoom: 5,
    });
    map.on("load", () => {
      map.addSource("weather", { type: "vector", url: `https://weather.maptoolkit.net/vector/icon.0.json?api_key=${API_KEY}` });
      const firstSymbolId = (map.getStyle().layers.find((l) => l.type === "symbol") || {}).id;

      map.addLayer({
        id: "weather-temperature", type: "fill", source: "weather", "source-layer": "temperature",
        paint: {
          "fill-color": ["interpolate", ["linear"], ["get", "degree"], -20, "#313695", 0, "#74add1", 10, "#fee090", 20, "#f46d43", 35, "#a50026"],
          "fill-opacity": 0.6,
        },
      }, firstSymbolId);
    });
  </script>
</body>
</html>

Use the prompt below with any LLM to get the same result. Make sure the Maptoolkit MCP server is connected first — check out AI Integration & MCP to get started.

Use the Maptoolkit Connector. Create a map centered on Austria with MapLibre GL and put a heat map of the current temperature of Europe on top.

Maptoolkit Maps JS