Public Holidays and Workdays

Public holidays and business-day check for Norway and 200+ other countries, from the open-source Nager.Date holiday database. Without dato: every public and bank holiday of a year with local and English name and whether it is nationwide or regional. With dato: whether that date is a holiday or weekend, plus the next business day. Use it for deadline and SLA maths, delivery and payroll scheduling, or opening-hours logic. Compact JSON.

DataLiveeip155:8453Exactvia cdp
Norway public holidaysHelligdagerBusiness day calculatorPublic holiday apiNext working day
Calls · 30d
7
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far.
$0.87
Verified settled volume
88 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
7
Calls · 30d
Upstream's own call count for this endpoint, not ours.
5
Unique payers · 30d
Last called 2026-10-25 18:52Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xF00679CD8B440C8bd541fB2AAB1382E6fFd65A51

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "PAYMENT-SIGNATURE header is required (or add free=1 for 3 free calls per hour)",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xF00679CD8B440C8bd541fB2AAB1382E6fFd65A51",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://nordata.hihat.workers.dev/helligdager",
      "description": "Public holidays and business-day check for Norway and 200+ other countries, from the open-source Nager.Date holiday database. Without dato: every public and bank holiday of a year with local and English name and whether it is nationwide or regional. With dato: whether that date is a holiday or weekend, plus the next business day. Use it for deadline and SLA maths, delivery and payroll scheduling, or opening-hours logic. Compact JSON.",
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://nordata.hihat.workers.dev/helligdager",
    "tags": [
      "norway public holidays",
      "helligdager",
      "business day calculator",
      "public holiday api",
      "next working day"
    ],
    "iconUrl": "https://nordata.hihat.workers.dev/icon.png",
    "mimeType": "application/json",
    "description": "Public holidays and business-day check for Norway and 200+ other countries, from the open-source Nager.Date holiday database. Without dato: every public and bank holiday of a year with local and English name and whether it is nationwide or regional. With dato: whether that date is a holiday or weekend, plus the next business day. Use it for deadline and SLA maths, delivery and payroll scheduling, or opening-hours logic. Compact JSON.",
    "serviceName": "Public Holidays and Workdays"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "aar": "2026",
            "land": "NO"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "aar": 2026,
            "land": "NO",
            "kilde": "date.nager.at",
            "antall": 13,
            "format": "helligdager = [dato, navn, navn_en, landsdekkende, regioner?]",
            "hentet": "2026-10-22T12:00:00.000Z",
            "helligdager": [
              [
                "2026-01-01",
                "Første nyttårsdag",
                "New Year's Day",
                true
              ],
              [
                "2026-04-02",
                "Skjærtorsdag",
                "Maundy Thursday",
                true
              ],
              [
                "2026-04-03",
                "Langfredag",
                "Good Friday",
                true
              ],
              [
                "2026-04-05",
                "Første påskedag",
                "Easter Sunday",
                true
              ],
              [
                "2026-04-06",
                "Andre påskedag",
                "Easter Monday",
                true
              ],
              [
                "2026-05-01",
                "Første mai",
                "Labour Day",
                true
              ],
              [
                "2026-05-14",
                "Kristi himmelfartsdag",
                "Ascension Day",
                true
              ],
              [
                "2026-05-17",
                "Syttende mai",
                "Constitution Day",
                true
              ]
            ]
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input",
          "output"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "land",
                  "aar"
                ],
                "properties": {
                  "aar": {
                    "type": "string",
                    "description": "Year as YYYY (optional, default current year; ignored when dato is given). Upstream covers roughly 1976-2074."
                  },
                  "dato": {
                    "type": "string",
                    "description": "Date as YYYY-MM-DD (optional). Instead of the year list you get whether that date is a public holiday or weekend (Sat/Sun) and neste_virkedag = the first Mon-Fri non-holiday date strictly after it."
                  },
                  "land": {
                    "type": "string",
                    "description": "ISO 3166-1 alpha-2 country code (NO, SE, DK, DE, GB, US, ... 200+ countries). Default NO."
                  },
                  "region": {
                    "type": "string",
                    "description": "ISO 3166-2 subdivision code such as DE-BY or GB-SCT (optional). Regional holidays count as days off only for the given region; without it only nationwide holidays stop a business day."
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type",
              "example"
            ],
            "properties": {
              "type": {
                "const": "json"
              },
              "example": {
                "type": "object",
                "properties": {
                  "aar": {
                    "type": "number"
                  },
                  "land": {
                    "type": "string"
                  },
                  "kilde": {
                    "type": "string"
                  },
                  "antall": {
                    "type": "number"
                  },
                  "format": {
                    "type": "string"
                  },
                  "hentet": {
                    "type": "string"
                  },
                  "helligdager": {
                    "type": "array",
                    "items": {
                      "type": "array",
                      "items": {}
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 1
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xF006…65A51. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xF00679CD8B440C8bd541fB2AAB1382E6fFd65A51",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "aar": "2026",
          "land": "NO"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "aar": 2026,
          "land": "NO",
          "kilde": "date.nager.at",
          "antall": 13,
          "format": "helligdager = [dato, navn, navn_en, landsdekkende, regioner?]",
          "hentet": "2026-10-22T12:00:00.000Z",
          "helligdager": [
            [
              "2026-01-01",
              "Første nyttårsdag",
              "New Year's Day",
              true
            ],
            [
              "2026-04-02",
              "Skjærtorsdag",
              "Maundy Thursday",
              true
            ],
            [
              "2026-04-03",
              "Langfredag",
              "Good Friday",
              true
            ],
            [
              "2026-04-05",
              "Første påskedag",
              "Easter Sunday",
              true
            ],
            [
              "2026-04-06",
              "Andre påskedag",
              "Easter Monday",
              true
            ],
            [
              "2026-05-01",
              "Første mai",
              "Labour Day",
              true
            ],
            [
              "2026-05-14",
              "Kristi himmelfartsdag",
              "Ascension Day",
              true
            ],
            [
              "2026-05-17",
              "Syttende mai",
              "Constitution Day",
              true
            ]
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input",
        "output"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "queryParams"
          ],
          "properties": {
            "type": {
              "const": "http"
            },
            "method": {
              "const": "GET"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "land",
                "aar"
              ],
              "properties": {
                "aar": {
                  "type": "string",
                  "description": "Year as YYYY (optional, default current year; ignored when dato is given). Upstream covers roughly 1976-2074."
                },
                "dato": {
                  "type": "string",
                  "description": "Date as YYYY-MM-DD (optional). Instead of the year list you get whether that date is a public holiday or weekend (Sat/Sun) and neste_virkedag = the first Mon-Fri non-holiday date strictly after it."
                },
                "land": {
                  "type": "string",
                  "description": "ISO 3166-1 alpha-2 country code (NO, SE, DK, DE, GB, US, ... 200+ countries). Default NO."
                },
                "region": {
                  "type": "string",
                  "description": "ISO 3166-2 subdivision code such as DE-BY or GB-SCT (optional). Regional holidays count as days off only for the given region; without it only nationwide holidays stop a business day."
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type",
            "example"
          ],
          "properties": {
            "type": {
              "const": "json"
            },
            "example": {
              "type": "object",
              "properties": {
                "aar": {
                  "type": "number"
                },
                "land": {
                  "type": "string"
                },
                "kilde": {
                  "type": "string"
                },
                "antall": {
                  "type": "number"
                },
                "format": {
                  "type": "string"
                },
                "hentet": {
                  "type": "string"
                },
                "helligdager": {
                  "type": "array",
                  "items": {
                    "type": "array",
                    "items": {}
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-26 16:25Z
Last indexed by Roundhouse
2026-10-26 17:20Z
Last enriched (probe, favicon, geo)
2026-10-22 23:16Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Public Holidays and Workdays and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Public%20Holidays%20and%20Workdays'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://nordata.hihat.workers.dev/helligdager, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.