Introduction

Welcome to the CO2 Signal API! You can use our API to get access to information about

• where the electricity in a specific region comes from
• how it was produced
• how much carbon was emitted to produce it

Authentication

To authorize, use this code:

# With shell, you can just pass the correct header with each request
curl 'https://api.co2signal.com/v1/latest?countryCode=DK'
  -H 'auth-token: myapitoken'

Make sure to replace myapitoken with your API key.

CO2 Signal uses API keys to allow access to the API. You can get an API key here.

CO2 Signal expects the API key to be included as a header in all requests to the server:

auth-token: myapitoken

Routes

Get latest by country code

curl 'https://api.co2signal.com/v1/latest?countryCode=FR'
  -H 'auth-token: myapitoken'

The above command returns JSON structured like this:

{
    "countryCode": "FR",
    "data": {
        "carbonIntensity": 92.97078744790771,
        "datetime": "2017-02-09T08:30:00.000Z",
        "fossilFuelPercentage": 12.028887656434616
    },
    "status": "ok",
    "units": {
        "carbonIntensity": "gCO2eq/kWh"
    }
}

This endpoint retrieves the last known state of a country.

HTTP Request

GET https://api.co2signal.com/v1/latest

Query Parameters

Parameter	Default	Description
countryCode		two-letter iso country code

Get latest by geographic coordinate

curl 'https://api.co2signal.com/v1/latest?lon=6.8770394&lat=45.9162776'
  -H 'auth-token: myapitoken'

The above command returns JSON structured like this:

{
    "countryCode": "FR",
    "data": {
        "carbonIntensity": 93.0727344671727,
        "datetime": "2017-02-09T08:30:00.000Z",
        "fossilFuelPercentage": 12.032514442152996
    },
    "status": "ok",
    "units": {
        "carbonIntensity": "gCO2eq/kWh"
    }
}

This endpoint retrieves the last known state of the zone. Currently we default to zones by country, but this will quickly evolve to be as granular as possible.

HTTP Request

GET https://api.co2signal.com/v1/latest

Query Parameters

Parameter	Default	Description
lon		longitude
lat		latitude