REST API

What is the REST API?

A REST API is a standard method for accessing data. The Forecast API provides the same air quality data that is shown on the airTEXT website, in a format that enables users to integrate the data into their systems.

Typical uses include:

• Integrating with other systems
• Downloading data
• Automating processes

API Endpoint

https://london-airtext-forecasts-api-gateway-7x54d7qf.nw.gateway.dev

Example Request

https://london-airtext-forecasts-api-gateway-7x54d7qf.nw.gateway.dev/getforecast/pollutant?from=2026-07-17&numdays=1&zone=Southwark

Example Response

{
	"forecastdate":"17-07-2026 14:48",
	"timestamp":1784299724550.003,
	"zones":[
		{"forecasts":
			[
				{
					"NO2":2,
					"O3":3,
					"PM10":2,
					"PM2.5":2,
					"forecast_date":"2026-07-17",
					"pollution_version":202607171410,
					"total":3,
					"total_status":"LOW"
				}
			],
			"zone_id":29,
			"zone_name":"Southwark",
			"zone_type":1
		}
	]
} 

Using Swagger

Swagger provides an interactive interface for exploring and testing the API.

Swagger document

Trying an Endpoint

1. Click Authorize.
2. Enter your API key.
3. Select the getForecast endpoint.
4. Click Try it out.
5. Enter any required parameters, as described in the swagger document.
6. Click Execute.
7. Review the response.