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GET
/
accounting
/
fiscalYears
cURL
curl --request GET \
  --url https://api.maesn.dev/accounting/fiscalYears \
  --header 'X-ACCOUNT-KEY: <x-account-key>' \
  --header 'X-API-KEY: <x-api-key>'
{
  "meta": {
    "warnings": [
      "Field not used by target system"
    ],
    "pagination": {
      "total": 125,
      "perPage": 50,
      "currentPage": 1,
      "totalPages": 3
    }
  },
  "data": [
    {
      "id": "20250101",
      "accountNumberLength": 4,
      "createdDate": "2025-01-01T00:00:00Z",
      "description": "Fiscal Year 2025",
      "endDate": "2025-31-12T00:00:00Z",
      "startDate": "2025-01-01T00:00:00Z",
      "updatedDate": "2025-01-01T00:00:00Z"
    }
  ]
}

Documentation Index

Fetch the complete documentation index at: https://docs.maesn.com/llms.txt

Use this file to discover all available pages before exploring further.

​
Field support per integration

This endpoint is only available when using the datev-rewe-export target system for DATEV Rechnungswesen. For more details, refer to the Data Retrieval section.
If you’re not using the Interactive Authentication Flow, make sure the query parameter companyId is correctly populated.
Supported filters: noneSupport pagination: falseSupport rawData: true
Supported Response Fields:
​
id
string
​
startDate
string

Headers

​
X-API-KEY
string
required

API key

​
X-ACCOUNT-KEY
string
required

Account key

Query Parameters

​
companyId
string
​
environmentName
string
​
lastModifiedAt
string
​
rawData
boolean

Response

200 - application/json
​
meta
object
​
data
object[]
Last modified on May 19, 2026