M
API Matrix

BreezoMeter Pollen API

Environment / API Key Intermediate HTTPS
Varies by plan (check documentation)
82 Score
Grade A
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Overview

BreezoMeter Pollen API (now part of Google Maps Platform) provides daily pollen forecast data including pollen type, index values, and risk levels for a specific geographic location. An API key from Google Maps Platform is required to authenticate requests. It is valuable for building health apps, outdoor activity planners, or allergy alert systems.

💡

Beginner Tip

Enable the Pollen API in your Google Cloud Console project and make sure billing is set up — the API has a free tier but requires a billing account. Use latitude and longitude coordinates (not city names) when querying pollen data.

Available Data

temperature
weather conditions
humidity
wind speed
forecast data

Example Response

JSON Response 
{
  "location": "Tokyo",
  "temperature": {
    "current": 22,
    "feels_like": 24,
    "min": 18,
    "max": 26
  },
  "condition": "Partly Cloudy",
  "humidity": 65,
  "wind": {
    "speed": 12,
    "direction": "NE"
  },
  "forecast": [
    {
      "date": "2025-01-16",
      "high": 25,
      "low": 17,
      "condition": "Sunny"
    }
  ]
}

Field Reference

dailyInfo Array of daily pollen forecast objects, one per requested day.
dailyInfo[].date Date of the forecast with year, month, and day fields.
dailyInfo[].pollenTypeInfo List of pollen types (e.g., GRASS, TREE, WEED) with index and risk level.
pollenTypeInfo[].indexInfo.value Numeric pollen index value indicating concentration level.
pollenTypeInfo[].indexInfo.category Risk category such as None, Very Low, Low, Medium, High, or Very High.
pollenTypeInfo[].inSeason Whether this pollen type is currently in season for the location.

Implementation Example 

// ⚠️ Note: This URL may be a documentation page. Check official docs for actual API endpoint.
const url = "https://docs.breezometer.com/api-documentation/pollen-api/v2/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "X-API-Key": "YOUR_API_KEY"
  }
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

403 Forbidden - API not enabled The Pollen API has not been enabled in your Google Cloud project.
✓ Go to the Google Cloud Console, navigate to APIs & Services, search for Pollen API, and enable it for your project.
400 Bad Request - invalid location Location must be provided as latitude/longitude, not a city name string.
✓ Use numeric lat/lng values like location.latitude=37.7749&location.longitude=-122.4194.
403 Billing not enabled Google Maps Platform requires an active billing account even for free-tier usage.
✓ Set up a billing account in Google Cloud Console and link it to your project.

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 15/20
🔒 Security 15/15
🛠 Developer XP 12/20
✓ Reliability 10/15

Partially tested on Apr 5, 2026

Technical Specifications

Auth API Key
HTTPS REQUIRED
CORS UNKNOWN
Category Environment
Difficulty Intermediate
Verified: 2026-04-07

Recipes Using BreezoMeter Pollen

Build something with this API. Each recipe includes step-by-step instructions and code outlines.

Intermediate 3-4 hours

Build an Air Quality Monitor

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