Air Quality API for Indian Businesses
Real-time Air Quality Index (AQI) data for cities across India. PM2.5, PM10, NO2, SO2, CO, and O3 levels with health category classification. Built for healthcare, smart city, and environmental applications.
What is an Air Quality API?
An Air Quality API is a REST interface that returns real-time Air Quality Index (AQI) data for any Indian location. It provides structured JSON data covering pollutant levels — PM2.5, PM10, NO2, SO2, CO, and O3 — alongside the composite AQI score and health category classification.
Air quality varies significantly across India, and it changes throughout the day. Our API pulls readings from authoritative monitoring stations — including CPCB networks and additional sensor grids — and makes them available through a simple query endpoint. You pass a city name or location, and receive current pollutant levels plus the AQI score in under 100 milliseconds.
Healthcare applications use it to alert users with respiratory conditions. Smart city dashboards use it for urban monitoring. Fitness apps use it to advise on outdoor exercise timing. Schools and event platforms use it for outdoor activity decisions. Any product where air quality affects user health, decisions, or planning benefits from reliable access to current AQI data.
Complete Air Quality Data
Everything you need for health alerts, environmental monitoring, and pollution analytics.
Overall Air Quality Index from 0-500 with standard CPCB classification — Good, Satisfactory, Moderate, Poor, Very Poor, Severe.
Particulate matter levels at both 2.5μm and 10μm — the pollutants most harmful to human health. Live μg/m³ values.
NO2, SO2, CO, and O3 levels. Essential for understanding pollution sources and health impact.
Which pollutant is driving the current AQI. Helps users and analysts understand the primary pollution source.
Standard CPCB health categories with recommended actions. Ready to display alongside AQI values.
Query AQI for any date range. Track pollution trends, seasonal patterns, and long-term environmental changes.
Real-Time AQI Data at Scale
Built for healthcare, smart city, and environmental applications where accuracy and freshness matter.
Query AQI in under 100 milliseconds. Fast enough for live health alerts, real-time dashboards, and user-facing widgets.
AQI data refreshed hourly from CPCB monitoring stations and additional sensor grids. Always current, never stale.
100+ Indian cities covered, including metros, Tier 2/3 cities, and major industrial zones. Query by city name or pin code.
PM2.5, PM10, NO2, SO2, CO, and O3 — the complete set of CPCB-tracked pollutants — returned in every response.
Submit up to 100 locations per request. Ideal for smart city dashboards tracking multiple zones or logistics route planning.
TLS 1.3, API key auth, and 99.9% uptime SLA. Returns only publicly available environmental data — no personal information involved.
Get AQI Data in Milliseconds
Three steps. No sensor infrastructure. No maintenance. No stale data.
Your app sends a GET request with the city name or pin code. Optional parameters control historical data or bulk queries.
Our system reads from our database — continuously refreshed from authoritative CPCB monitoring stations and additional sensor networks.
Receive AQI, pollutant breakdown, dominant pollutant, and health category in under 100ms. Ready to display or use in logic.
Who Uses Air Quality Data
Deployed across healthcare, smart cities, fitness, and environmental applications.
Alert users with asthma, COPD, or respiratory conditions when AQI is poor in their area. Provide real-time health recommendations based on current pollution levels. Track correlations between AQI and patient symptoms for research.
Monitor AQI across zones in real time. Identify pollution hotspots. Track effectiveness of environmental interventions. Provide citizens with accessible AQI data through city apps and public displays.
Advise users on outdoor exercise timing based on AQI. Recommend indoor alternatives during pollution spikes. Build habit-forming features around clean air windows. Improve user retention with personalized health advice.
Make informed decisions about outdoor activities, sports events, and recess schedules based on real-time AQI. Send parent notifications. Auto-adjust schedules when air quality deteriorates.
What Changes When You Have Live AQI Data
Integrating our Air Quality API unlocks health-aware features and eliminates manual monitoring.
Build features that adapt to air quality — from health alerts to exercise recommendations. Users get real value from data-driven personalisation.
Track AQI changes across zones in real time. Respond quickly to pollution events with alerts and auto-adjustments.
Access historical AQI data for trend analysis, pollution source studies, and environmental research. Build dashboards your users trust.
No need to install, maintain, or calibrate air quality sensors. Our API gets you live in an hour with zero hardware cost.
API Express vs Alternatives
What sets our Air Quality API apart from other providers.
| Feature | API Express | Own Sensors | Global AQI APIs |
|---|---|---|---|
| Setup time | <1 hour | Weeks-months | Days |
| Hardware cost | Zero | High | Zero |
| India city coverage | 100+ cities | Wherever deployed | Major metros |
| Update frequency | Hourly | Real-time (yours) | 1-3 hours |
| Historical data | Included | From deployment | Paid add-on |
| Pollutants reported | 6 (PM2.5, PM10, NO2, SO2, CO, O3) | Sensor-dependent | Varies |
| Free tier | 1,000 calls | N/A | Limited |
| Support response | <4 hrs | N/A | 24-48 hrs |
The Air Quality API Built for India
Choosing an environmental data provider is a long-term decision. Here's what makes API Express different.
Deep coverage across Indian cities including Tier 2/3 and industrial zones. Not a shallow India layer on a global API — a weather-grade AQI API built for India.
Fast enough for live health alerts, real-time widgets, and dashboards without perceptible delay.
More frequent than most competitors. Your users see current AQI, not yesterday's reading — critical for health applications.
Pay-as-you-go, no minimum commitment. Volume discounts apply automatically. No hidden fees, no surprise invoices.
Real people via email, WhatsApp, and phone. Integration help included free. Enterprise clients get a named contact.
Your first 1,000 API calls free — no credit card. Test real-time AQI, pollutant breakdowns, and historical data in sandbox.
Every Major Indian City. Every Pollutant.
Complete AQI coverage across metros, Tier 2/3 cities, and industrial zones.
Built on Standards Developers Trust
Our Air Quality API is built on industry-standard technology — designed for easy integration, high performance, and accurate data delivery.
Simple GET endpoint. Query by city or pin code.
Structured JSON with AQI and 6 pollutant levels.
API key auth · TLS 1.3 · IP whitelisting · Full audit logs.
Multi-zone redundancy · High-throughput queries at any volume.
Query AQI for any past date range. Analytics-ready.
Test with mock city data. No charges for sandbox calls.
Other APIs You May Need
Air Quality data pairs well with these APIs for complete environmental and smart city workflows.
Real-time weather conditions. Pairs with AQI for complete environmental monitoring.
Live fuel prices for logistics cost calculation alongside route risk planning.
Verify vehicles for smart city and logistics workflows alongside environmental data.
Air Quality API — Common Questions
Quick answers to the questions we hear most often. Contact us if yours isn't here.
An Air Quality API is a REST interface that returns real-time Air Quality Index (AQI) data for any Indian location. It provides structured JSON data covering pollutant levels (PM2.5, PM10, NO2, SO2, CO, O3), overall AQI score, and health category classification — for use in healthcare, smart city, and environmental applications.
AQI data is updated hourly from authoritative monitoring stations across India. Some locations with high-density sensor coverage are updated more frequently. The API always returns the most recent available reading.
Over 100 major Indian cities are covered — including metros, Tier 2/3 cities, and industrial zones. Coverage includes Central Pollution Control Board (CPCB) monitoring stations and additional sensor networks. New locations are added continuously.
The API reports PM2.5, PM10, NO2, SO2, CO, and O3 levels alongside the composite AQI score. It also returns the dominant pollutant (the one driving the current AQI value) and the health category (Good, Moderate, Unhealthy, etc.).
Yes. Historical AQI data is available for any date range. Useful for trend analysis, environmental research, health impact studies, and reporting on pollution patterns over time.
Sign up free, get your API key instantly, and send a simple GET request with the city or location. Full documentation, sandbox environment, and code samples in Node.js, Python, PHP, and cURL are provided. Most integrations take under an hour.
Yes. All requests are authenticated using unique API keys over HTTPS with TLS 1.3 encryption. The API returns only publicly available environmental data — no user-specific or sensitive information is involved.
Yes. Your first 1,000 API calls are completely free with no credit card required. Test real-time AQI, pollutant breakdowns, and historical data in our sandbox before going live.
Start Tracking AQI in Under an Hour
Sign up free, get your API key instantly, and complete your first air quality integration before end of day. Your first 1,000 API calls are on us.