Dutch statutory interest calculator (wettelijke rente, art
Dutch statutory interest calculator (wettelijke rente, art. 6:119 BW consumer; art. 6:119a BW commercial) on an unpaid amount between two dates, with the legally required yearly compounding and every rate change, period by period. Use it for invoices, debt collection and claims under Dutch law. From 2015-01-01; rates from the Staatsblad and ECB.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
491 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://opendata402.com/v1/nl/statutory-interest
| Category | Everything else |
|---|---|
| Provider host | opendata402.com |
| Networks | eip155:137, eip155:42161, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.002 | 491 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"amount": "1000",
"from": "2024-03-01",
"to": "2026-10-14",
"type": "commercial"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"amount": {
"description": "Principal in EUR.",
"pattern": "^\\d{1,9}(\\.\\d{1,2})?$",
"type": "string"
},
"from": {
"description": "Date interest starts (day after due date), YYYY-MM-DD, >= 2015-01-01.",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"to": {
"description": "End date (default today).",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"type": {
"description": "consumer = 6:119, commercial = 6:119a.",
"enum": [
"consumer",
"commercial"
],
"type": "string"
}
},
"required": [
"amount",
"from",
"type"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}