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      • Authentication, input and response
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    • WWS Points API
      • Authentication, input and response
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      • Specifications for independent home version 01-01-2024
      • Specifications for non-independent home version 01-01-2024
      • Specifications for independent home version 01-07-2024
      • Specifications for non-independent home version 01-07-2024
      • Input explanation for version 01-07-2024
      • Output interpretation
  • API error codes
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  • Request housing features for Dutch residential properties
  • Request body
  1. API's
  2. Housing features API

Authentication, input and response

Request housing features for Dutch residential properties

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

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

valuationdate

string

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": {
		"bag_id": "0363010000710354",
		"postcode": "1011EW",
		"housenumber": "48",
		"houseaddition": "None",
		"valuation_date": "20240104",
		"city": "Amsterdam",
		"street": "Koningsstraat",
		"house_type_generic": "Tussen/rijwoning",
		"house_type_specific": "None",
		"type_house_construction": "Herenhuis, tussenwoning",
		"building_status": "Pand in gebruik",
		"inner_surface_area": "216.0",
		"outer_surface_area": "76.0",
		"build_year": "1906.0",
		"volume": "548.0",
		"rooms": "8.0",
		"number_of_bathrooms": "3.0",
		"garden_orientation": "None",
		"garden_size": "None",
		"garden_location": "Achtertuin",
		"monument": "0",
		"monument_description": "Geen monument / Onbekend",
		"longitude": "4.902011945627775",
		"latitude": "52.37216745876808",
		"neighbourhood_code": "BU03630404",
		"neighbourhood_name": "Nieuwmarkt",
		"municipality_code": "363.0",
		"municipality_name": "Amsterdam",
		"province": "Noord-Holland",
		"use_ownership": "V",
		"rent_ownership": "E",
		"rent_ownership_class": "4.5",
		"ozb_tax": "0.0431",
		"waste_tax_one_person": "22.72",
		"waste_tax_more_persons": "330.34",
		"sewage_tax_one_person": "440.18",
		"sewage_tax_more_persons": "160.43",
		"protected_cityviews": "2",
		"protected_cityview_names": "['Amsterdam - Binnen de Singelgracht', 'Amsterdam - Nieuwmarktbuurt']"
	}
}
{
  "Output": "The given house address not found in database, the combination of Post Code, House Number and House Addition does not exist."
}

{
  "Output": "We are not able to provide data at the moment."
}
{
	"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
			}
		}
	]
}
{
	"message": "Internal server error"
}
{
	"message": "Missing Authentication Token"
}
{
    'Output': 'Please use https://api.altum.ai or visit https://mopsus.altum.ai to make your request.'
}

Request body

Example request

{
  "postcode": "2201PZ",
  "housenumber": 11,
  "valuationdate": "20221001"
}
PreviousHousing features APINextAPI Key Information

Last updated 6 months ago