Air Quality Programmatic APIs
Air Quality Programmatic APIs provide real-time and forecast air quality data from 11,000+ monitoring stations in 1,000+ cities worldwide. APIs deliver Air Quality Index (AQI) measurements for PM2.5, PM10, NO2, CO, SO2, and ozone pollutants. Provided by AQICN (World Air Quality Index project) in partnership with the US EPA and global environmental agencies. Data is available via JSON API and map tile API for visualization.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Air Quality Programmatic APIs the way a machine reads it — 60 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Air Quality Programmatic APIs scores 34.8/100 (thin), with a separate agent-readiness read of 29/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-10 · rubric v0.20.0
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How we profile Air Quality Programmatic APIs
Each block below is one kind of artifact we hold for Air Quality Programmatic APIs. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 2
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Air Quality Programmatic APIs Air Quality Programmatic APIs Real Time Air Quality Tile API API
The Air Quality Programmatic APIs Real Time Air Quality Tile API API from Air Quality Programmatic APIs — 1 operation(s) for air quality programmatic apis real time air quality ...
Air Quality Programmatic APIs Stations API
The Stations API from Air Quality Programmatic APIs — 5 operation(s) for stations.
Open Collections 8
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONAir Quality Programmatic APIs Real-time Air Quality Tile Air Quality Programmatic APIs Real Time Air Quality Tile API API
OPEN COLLECTIONAir Quality Programmatic APIs Real-time Air Quality Tile Air Quality Programmatic APIs Real Time Air Quality Tile API Cities API
OPEN COLLECTIONAir Quality Programmatic APIs Real-time Air Quality Tile Air Quality Programmatic APIs Real Time Air Quality Tile API Geolocation API
OPEN COLLECTIONAir Quality Programmatic APIs Real-time Air Quality Tile Air Quality Programmatic APIs Real Time Air Quality Tile API Map API
OPEN COLLECTIONAir Quality Programmatic APIs Real-time Air Quality Tile Air Quality Programmatic APIs Real Time Air Quality Tile API Search API
OPEN COLLECTIONAir Quality Programmatic APIs Real-time Air Quality Tile Air Quality Programmatic APIs Real Time Air Quality Tile API Stations API
OPEN COLLECTIONAir Quality Programmatic APIs Real-time Air Quality Tile API
OPEN COLLECTIONScroll within the panel for all 8 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Air Quality Programmatic Apis Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Features 8
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Real-Time AQI Data
Live air quality index readings from 11,000+ monitoring stations updated continuously.
Global Coverage
Data from 1,000+ cities worldwide including US EPA, China MEP, Europe EEA, and other monitoring networks.
Multi-Pollutant Data
Pollutant-specific AQI for PM2.5, PM10, nitrogen dioxide, carbon monoxide, sulfur dioxide, and ozone.
Air Quality Forecasts
3-8 day air quality forecasts for major monitoring stations.
Geolocation Queries
Find nearest stations by latitude/longitude, city name, or IP-based geolocation.
Map Tile API
Raster map tiles for overlaying real-time AQI data on web maps (Leaflet, Google Maps, etc.).
Station Search
Search and discover monitoring stations by name or location within a geographic boundary.
Weather Data
Current weather conditions co-located with air quality measurements.
Scroll within the panel for all 8 ·
Semantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Aqicn Context
JSON-LDSpectral Rules 3
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
JSON Schema 9
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
AQIStation
JSON SCHEMAAttribution
JSON SCHEMACityInfo
JSON SCHEMAForecastData
JSON SCHEMAForecastDay
JSON SCHEMAPollutantData
JSON SCHEMAStationData
JSON SCHEMAStationSearchResult
JSON SCHEMATimeInfo
JSON SCHEMAScroll within the panel for all 9 ·
JSON Structure 9
JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.
JSON Structure definitions describing this provider's data shapes.
Aqicn Aqi Station Structure
JSON STRUCTUREAqicn Attribution Structure
JSON STRUCTUREAqicn City Info Structure
JSON STRUCTUREAqicn Forecast Data Structure
JSON STRUCTUREAqicn Forecast Day Structure
JSON STRUCTUREAqicn Pollutant Data Structure
JSON STRUCTUREAqicn Station Data Structure
JSON STRUCTUREAqicn Station Search Result Structure
JSON STRUCTUREAqicn Time Info Structure
JSON STRUCTUREScroll within the panel for all 9 ·
Examples 9
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Aqicn Aqi Station Example
EXAMPLEAqicn Attribution Example
EXAMPLEAqicn City Info Example
EXAMPLEAqicn Forecast Data Example
EXAMPLEAqicn Forecast Day Example
EXAMPLEAqicn Pollutant Data Example
EXAMPLEAqicn Station Data Example
EXAMPLEAqicn Time Info Example
EXAMPLEScroll within the panel for all 9 ·
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 5
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Air Quality Mobile Apps
Build apps that show users real-time air quality for their location with health recommendations.
Environmental Monitoring Dashboards
Create web dashboards visualizing air quality trends across cities and regions.
Public Health Research
Access historical and real-time air quality data for epidemiological and public health research.
Smart City Integration
Integrate air quality data into smart city platforms and IoT systems for environmental management.
Outdoor Activity Planning
Provide air quality-based recommendations for outdoor activities in fitness and weather apps.
Resources
Every other property we hold for Air Quality Programmatic APIs — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/air-quality-programmatic-apis · machine-readable index on apis.io
This is an independent, third-party profile of Air Quality Programmatic APIs, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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