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Factline Energy Label Lookup
x402
Factline Energy Label Lookup is a paid API for AI agents from factline.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Returns the officially registered Dutch energy label (A++++ to G), registration date, expiry date, and building type for any Dutch address by postcode and house number, sourced from RVO EP-Online.
Price / call$0.005
Success—
StatusUnknown
How this service works
API and MCP servers that let AI agents and apps check people, companies, Dutch addresses and cars against official records: sanctions and PEP lists, 10 company registers, Dutch property, rent and RDW vehicle data. From $0.001 per call.
Output
Returns the officially registered energy label (e.g. A++, B, C … G), the registration date, the expiry date, and the building type for the queried Dutch address. If no label is registered, returns a clear 'none registered' response. Data sourced directly from RVO EP-Online.
Example use cases
Pre-purchase property energy check
“Before I make an offer on the house at postcode 2512HM, house number 34 in The Hague, can you check what energy label is officially registered for it and when it expires?”
Rental listing compliance verification
“I'm listing an apartment at Keizersgracht 123 in Amsterdam, postcode 1015CJ — can you confirm what energy label is on record for it in EP-Online so I can include the correct rating in the rental ad?”
Portfolio energy label audit
“For the property at postcode 5611AE, house number 7 in Eindhoven, what is the current official energy label, the building type, and the registration date from the Dutch EP-Online register?”
Technical details
Endpoint
GEThttps://factline.dev/v1/energy-label?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the officially government-registered Dutch energy label for a specific residential or commercial address, sourced from RVO EP-Online. Prefer this over general property lookup endpoints when energy compliance, label rating, or certificate validity is the primary concern. Ideal for real estate agents, property buyers, landlords, sustainability analysts, or compliance workflows focused on Netherlands addresses.
Side effects
- Invalid or malformed postcode format returns a validation error
- House number not found at the given postcode returns 'none registered'
- Address exists but has no energy label registered returns 'none registered'
- RVO EP-Online upstream unavailability may cause timeout or 503 error
- Ambiguous address without house number addition may return multiple or incorrect results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"source": "RVO EP-Online",
"address": {
"city": "'s-Gravenhage",
"label": "Laan van Meerdervoort 100, 2517AS 's-Gravenhage",
"postcode": "2517AS",
"house_number": 100,
"bag_object_id": "0518010001775699"
},
"energy_label": {
"label": "A",
"inspected": "2020-12-30",
"registered": "2020-12-31",
"valid_until": "2030-12-30",
"energy_index": 1.02,
"building_type": "Flatwoning (overig)",
"simplified_label": false
}
}
}Tags
x402
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