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AQICN API

by AQICN Free tier

Air Quality Index Data for over 1000 cities

weather

Quick Reference

Base URL https://aqicn.org Auth type API Key Header Auth header Authorization: Bearer YOUR_TOKEN Rate limit 1K req/hour (with token) Pricing Enterprise / contact sales Free quota None Documentation https://aqicn.org/api/ Endpoint status Live — HTTP 200 — endpoint is accessible4.50s (checked Mar 29, 2026) Builder score D 20% builder-friendly
Pricing
28
Latency
20
Depth
14

Authentication

See documentation for auth details

Authorization: Bearer YOUR_TOKEN

Pricing

Model subscription Starting price Enterprise / contact sales Free quota None

Air quality index data (AQICN/World AQI). Free with API token for non-commercial. Commercial licensing required for business use. Contact for enterprise pricing.

Key Endpoints

MethodPathDescription
GET / See documentation for endpoint reference

Sample Request

curl 'https://aqicn.org'

Sample Response

{}

Data sourced from API Map. Always verify pricing and rate limits against the official AQICN documentation.