api-ninjas-com

api-ninjas-com Air Quality API

The Air Quality API provides the latest air quality information for any city or geographic location in the world. It provides not only the holistic Air Quality Index (AQI) but also concentrations for major pollutants: Carbon monoxide (CO), Nitrogen dioxide (NO2), Ozone (O3), Sulphur dioxide (SO2), PM2.5 particulates, PM10 particulates.

Documentation GitHub OpenAPI

Operations 1

GET /v1/airquality Get air quality by city or location coordinates #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Ninjas Air Quality API
  description: 'Combined OpenAPI specification for every API Ninjas endpoint. Requests go to https://api.api-ninjas.com with an `X-Api-Key` header; get a free key at https://api-ninjas.com/register. Human-readable docs: https://api-ninjas.com/api. Index for LLMs: https://api-ninjas.com/llms.txt.'
  version: 1.0.0
  contact:
    name: API Ninjas
    url: https://api-ninjas.com
  license:
    name: Proprietary
servers:
- url: https://api.api-ninjas.com
  description: API Ninjas Production
security:
- ApiKeyAuth: []
tags:
- name: Air Quality
  description: 'The Air Quality API provides the latest air quality information for any city or geographic location in the world. It provides not only the holistic Air Quality Index (AQI) but also concentrations for major pollutants: Carbon monoxide (CO), Nitrogen dioxide (NO2), Ozone (O3), Sulphur dioxide (SO2), PM2.5 particulates, PM10 particulates.'
paths:
  /v1/airquality:
    get:
      summary: Get air quality by city or location coordinates
      description: Returns the Air Quality Index plus CO, NO2, O3, SO2, PM2.5 and PM10 concentrations for a location. Requires a `city` or `lat`/`lon`; `state` and `country` disambiguate city names. Searching by `city` is premium only; free-tier requests can use `lat`/`lon`.
      operationId: getAirQuality
      parameters:
      - name: lat
        in: query
        description: Latitude of desired location.
        required: false
        schema:
          type: string
      - name: lon
        in: query
        description: Longitude of desired location.
        required: false
        schema:
          type: string
      - name: city
        in: query
        description: City name. Premium only.
        required: false
        schema:
          type: string
      - name: state
        in: query
        description: US state (for United States cities only). Premium only.
        required: false
        schema:
          type: string
      - name: country
        in: query
        description: Country name. Premium only.
        required: false
        schema:
          type: string
      responses:
        '200':
          description: Successful response with air quality data.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AirQualityResponse'
        '400':
          description: Bad Request - Invalid parameters or request format.
        '401':
          description: Unauthorized - API key missing or invalid.
        '500':
          description: Internal Server Error - Error on the server side.
      security:
      - ApiKeyAuth: []
      tags:
      - Air Quality
components:
  schemas:
    Pollutant:
      type: object
      properties:
        concentration:
          type: number
          description: Concentration of the pollutant in micrograms per cubic meter.
        aqi:
          type: integer
          description: Air Quality Index for the specific pollutant.
    AirQualityResponse:
      type: object
      properties:
        overall_aqi:
          type: integer
          description: Overall Air Quality Index.
        CO:
          $ref: '#/components/schemas/Pollutant'
        PM10:
          $ref: '#/components/schemas/Pollutant'
        SO2:
          $ref: '#/components/schemas/Pollutant'
        PM2.5:
          $ref: '#/components/schemas/Pollutant'
        O3:
          $ref: '#/components/schemas/Pollutant'
        NO2:
          $ref: '#/components/schemas/Pollutant'
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-Api-Key
externalDocs:
  description: API Ninjas documentation
  url: https://api-ninjas.com/api