Rent Check

Last 30 days

Uptime

100%

Response time

315 ms typical, 535 ms slowest 5%

Last check

2 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://factline.dev/v1/rent-check?house_number=100&postcode=2517AS"

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffactline.dev%2Fv1%2Frent-check
const res = await pay("https://factline.dev/v1/rent-check?house_number=100&postcode=2517AS");
console.log(await res.json());

Example input

{
  "house_number": 100,
  "postcode": "2517AS"
}

Example output

{
  "address": {
    "city": "'s-Gravenhage",
    "house_number": 100,
    "label": "Laan van Meerdervoort 100, 2517AS 's-Gravenhage",
    "postcode": "2517AS"
  },
  "breakdown": {
    "energy_label": {
      "basis": "label B, multi-family table",
      "high": 30,
      "low": 30
    },
    "floor_area": {
      "basis": "75 m2 usable floor area (BAG)",
      "high": 74,
      "low": 71.25
    },
    "heating": {
      "high": 10,
      "low": 6
    },
    "kitchen": {
      "high": 7,
      "low": 4
    },
    "outdoor_space": {
      "high": 8,
      "low": -5
    },
    "sanitary": {
      "high": 11,
      "low": 8
    },
    "woz_value": {
      "basis": "estimated WOZ EUR 237,000 to 355,000 from the neighbourhood average",
      "capped_at_33_percent": false,
      "high": 38.5,
      "low": 25.75
    }
  },
  "max_rent_eur_per_month": {
    "high": 1178.31,
    "low": 912.34,
    "note": "Maximum basic rent (kale huur) for the points, excluding service costs."
  },
  "official_check": "https://www.huurcommissie.nl/huurprijscheck",
  "points": {
    "high": 179,
    "low": 140
  },
  "segment": {
    "certain": false,
    "explained": "Middle rent (middenhuur): 144 to 186 points.",
    "high_estimate": "middle",
    "low_estimate": "social",
    "most_likely": "middle"
  },
  "summary": "Estimated 140 to 179 rent points: on the border between social rent and middle rent (most likely middle rent). The exact kitchen, bathroom and outdoor space decide it.",
  "thresholds_2026": {
    "middle_max_points": 186,
    "middle_max_rent_eur": 1228.07,
    "social_max_points": 143,
    "social_max_rent_eur": 932.93
  }
}

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