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Authentication, input and response

Transaction API

POST https://api.altum.ai/transaction

This endpoint allows you to retrieve Kadaster transaction data for an object.

Headers

Name
Type
Description

x-api-key*

string

Unique API Key from Altum. Create one on https://platform.altum.ai

Content-Type

string

application/json

Request Body

Name
Type
Description

postcode*

string

Zipcode of the object

valuationdate

number

Enter as YYYYMMDD, gives newest transaction till that date. Default is TODAY

houseaddition

string

House letter and addition of the object

housenumber*

number

House number of the object

{
  "Output": "The given house address not found in database, the combination of Post Code, House Number and House Addition does not exist."
}
{
	"detail": [
		{
			"loc": [
				"body",
				43
			],
			"msg": "Expecting value: line 3 column 18 (char 43)",
			"type": "value_error.jsondecode",
			"ctx": {
				"msg": "Expecting value",
				"doc": "{\n  \"postcode\": \"2201PZ\",\n  \"housenumber\": a,\n  \"valuationdate\": \"20121001\"\n}",
				"pos": 43,
				"lineno": 3,
				"colno": 18
			}
		}
	]
}

POST https://api.altum.ai/v2/transaction

This endpoint allows you to retrieve Kadaster transaction data for an object. The price is indexed to the current date.

Headers

Name
Type
Description

x-api-key*

string

Unique API Key from Altum. Create one via Mopsus(https://mopsus.altum.ai)

Content-Type

string

application/json

Request Body

Name
Type
Description

postcode*

string

Zipcode of the object

housenumber*

number

House number of the object

houseaddition

string

House letter and addition of the object

valuation_date

number

Enter as YYYYMMDD, gives newest transaction till that date. Default is TODAY

{
  "output": "The given house address not found in database, the combination of Post Code, House Number and House Addition does not exist."
}
{
	"detail": [
		{
			"loc": [
				"body",
				43
			],
			"msg": "Expecting value: line 3 column 18 (char 43)",
			"type": "value_error.jsondecode",
			"ctx": {
				"msg": "Expecting value",
				"doc": "{\n  \"postcode\": \"2201PZ\",\n  \"housenumber\": a,\n  \"valuationdate\": \"20121001\"\n}",
				"pos": 43,
				"lineno": 3,
				"colno": 18
			}
		}
	]
}

FREE Ping for availability

Post object data to receive availability of transaction data

POST https://api.altum.ai/transaction/ping

This endpoint allows you to get the availability of the transaction data from our database. A POST request requires a body parameter (Address).

Headers

Name
Type
Description

x-api-key*

string

API Key from Altum. Create one via Mopsus(https://mopsus.altum.ai)

Content-Type

string

application/json

Request Body

Name
Type
Description

postcode*

string

Zipcode of the object

valuationdate

number

Enter as YYYYMMDD, gives newest transaction till that date. Default is TODAY

houseaddition

string

House letter and addition of the object

housenumber*

number

House number of the object

Request body

Example request

POST https://api.altum.ai/v2/transaction/ping

This endpoint allows you to get the availability of the transaction data from our database. A POST request requires a body parameter (Address).

Ping V2 queries the Transaction API V2 database. Please use Transaction API V2 with Ping V2.

Headers

Name
Type
Description

x-api-key*

string

API Key from Altum. Create one via Mopsus(https://mopsus.altum.ai)

Content-Type

string

application/json

Request Body

Name
Type
Description

postcode*

string

Zipcode of the object

housenumber*

number

House number of the object

houseaddition

string

House letter and addition of the object

valuation_date

number

Enter as YYYYMMDD, gives newest transaction till that date. Default is TODAY

Request body

Example request

VorigeKadaster Transaction API
VolgendeAPI Key Information

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