# Dutch Maximum Rent Increase Lookup

> Dutch Maximum Rent Increase Lookup is a paid API for AI agents from opendata402.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-15).

Returns the legally permitted maximum annual rent increase percentage for the Netherlands for a given date and rental sector (social, mid-rent, or free), plus maximum new rent if current rent is provided.

## Facts

- Endpoint: GET https://opendata402.com/v1/nl/rent-increase-max?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dutch-maximum-rent-increase-lookup-f99183be
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_03zHs1WaH0NmSrBHPW1Gq

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dutch-maximum-rent-increase-lookup-f99183be
```

Example prompt: What is the maximum legal rent increase my Dutch landlord can apply to my free sector apartment starting January 1 2025, and if my current rent is €1,450 per month what would the new maximum rent be?

## When to prefer this

Use this endpoint when you need authoritative, source-cited Dutch rent increase limits for a specific sector and date — especially for tenant rights verification, landlord compliance, or legal due diligence. Prefer this over general web search when you need structured, machine-readable data with official source references covering 2019–2026.

## Known failure modes

- Invalid date format (must be YYYY-MM-DD) returns a 400 error
- Date outside the supported 2019–2026 range returns an error or empty result
- Invalid sector value (not 'social', 'mid', or 'free') returns a validation error
- Invalid rent format (non-numeric or too many decimal places) triggers schema validation failure
- No data available for a very future date beyond published government figures

## How this service works

Maximum legal annual rent increase in the Netherlands for a given increase date and rental sector: social (regulated, per 1 July), mid-rent (regulated middle segment, per calendar year) or free sector (per calendar year, lower of CPI/CAO + 1). With the current rent it also gives the maximum new rent. 2019-2026, each figure with its official source.

## Output

Returns the legally permitted maximum rent increase percentage for the specified Dutch rental sector and effective date, the official regulatory basis (with source citation), and — if current rent is provided — the calculated maximum new monthly rent in EUR. Data covers 2019–2026.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "sector",
      "date"
     ],
     "properties": {
      "date": {
       "type": "string",
       "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
       "description": "Date the increase takes effect."
      },
      "rent": {
       "type": "string",
       "pattern": "^\\d{1,6}(\\.\\d{1,2})?$",
       "description": "Current monthly base rent in EUR (optional)."
      },
      "sector": {
       "enum": [
        "social",
        "mid",
        "free"
       ],
       "type": "string",
       "description": "social, mid or free."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dutch-maximum-rent-increase-lookup-f99183be/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from opendata402.com](https://www.zero.xyz/host/opendata402.com/llms.txt)