Accounting API

Ledger Accounts

Tax Rates

Company Info

Invoices

Customers

Bills

Suppliers

Invoice Items

Payments

Credit Notes

Journals

Journal Entries

Subsidiaries

BalanceSheet

ProfitAndLoss

Purchase Orders

Locations

Departments

Attachments

Tracking Categories

Bill Payments

Expenses

Aged Creditors

Aged Debtors

Bank Feed Accounts

Bank Feed Statements

Quotes

Bank Accounts

Projects

Refunds

Payment Methods

Sales Receipts

Goods Receipts

Companies

Employees

Expense Categories

Expense Reports

Bill Credit Notes

German freelancer/SMB cloud accounting and invoicing platform.

connection

sevDesk

sevDesk runs one environment (my.sevdesk.de) and there are no separate development credentials — testing and production both use a real account's API token.

Every call hits a live account and creates real business documents, so keep development on an account of your own rather than on a consumer's production data.

sevDesk API reference

sevDesk API — plan requirements and token generation

sevDesk plans and pricing

API news — pagination limits enforced (effective 30 May 2025)

API news — token in the URL removed (effective 29 April 2025)

Accounts Receivable

Accounts Payable

Code

Display ID

Account ID

Account Name

Nominal Code

Parent ID

medium

edge-case

The customer's outstanding balance: the amount the customer currently owes, in the customer's currency. A positive value means the customer owes the business.

Balance

The channel through which the transaction is processed.

Channel

The company ID the transaction belongs to

CompanyId

Company name

The date and time when the object was created.

Created at (timestamp)

Created by

Indicates the associated currency for an amount of money. Values correspond to [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217).

Currency

UNKNOWN_CURRENCY

When custom mappings are configured on the resource, the result is included here.

Customer Category

Display Name

The third-party API ID of original entity

First name

Is this an individual or business customer

Is individual

Last name

Middle name

Notes

The parent customer this entity is linked to.

The parent ID of the customer this entity is linked to.

Customer ID

Name

LinkedParentCustomer

The pass_through property allows passing service-specific, custom data or structured modifications in request body when creating or updating resources.

Payment method used for the transaction, such as cash, credit card, bank transfer, or check

Payment method

Is project

A binary value used to detect updates to a object and prevent data conflicts. It is incremented each time an update is made to the object.

Row version

Status

Display id

Suffix

Tax number

Tax rate code

The ID of the object.

Rate

Whether the entity is subject to taxation

Taxable

Terms

Payment Terms ID

Job title

The date and time when the object was last updated.

Updated at (timestamp)

Updated by

high

Is this an individual or business supplier

The integration system the supplier belongs to.

Integration System ID

Email address of the person who issued the purchase order for the supplier

Issued email

Method of issuance of the purchase order for the supplier

Issued method

Subsidiary ID

Supplier Category

Indicates if accounting by row is used (true) or not (false). Accounting by row means that a separate ledger transaction is created for each row.

Accounting by Row

Account Number

Account Type

Bank Code

The name of the bank or financial institution

Bank Name

BIC/SWIFT Code

Branch Identifier

Bank State Branch number (Australia/New Zealand)

BSB Number

Country code according to ISO 3166-1 alpha-2.

Country Code

IBAN

Routing Number

Name of the contact person at the address

country code according to ISO 3166-1 alpha-2.

Address field that holds a sublocality, such as a county

Line 1 of the address e.g. number, street, suite, apt #, etc.

Salutation of the contact person at the address

The address string. Some APIs don't provide structured address data.

Currency Exchange Rate at the time entity was recorded/generated.

Currency Exchange Rate

Company Name

Email

The ID of the customer this entity is linked to.

The name of the customer. Deprecated, use display_name instead.

LinkedCustomer

Customer memo

Department ID

Deposit

Discount Amount

Discount percentage applied to this invoice.

Discount Percent

The invoice due date is the date on which a payment or invoice is scheduled to be received by the seller - YYYY-MM-DD.

Due date

Invoice date

Invoice Sent

language code according to ISO 639-1. For the United States - EN

Invoice Line Item

Location ID

Invoice number

A PO Number uniquely identifies a purchase order and is generally defined by the buyer. The buyer will match the PO number in the invoice to the Purchase Order.

Purchase Order number

Optional reference identifier for the transaction.

Reference

URL link to a source document - shown as 'Go to [appName]' in the downstream app. Currently only supported for Xero.

Source document URL

Sub-total amount

Applicable tax id/code override if tax is not supplied on a line item basis.

Tax Code

Tax inclusive

Template

Total amount

Total tax amount applied to this invoice.

Total tax amount

Linked tracking categories

The unique identifier for the tracking category.

Tracking Category ID

Tracking Category Name

Invoice type

The balance reflecting any payments made against the transaction.

Date credit note issued - YYYY:MM::DDThh:mm:ss.sTZD

Datetime

Date credit note paid - YYYY:MM::DDThh:mm:ss.sTZD

Unique identifier representing the entity

Credit Note identifier

Optional note to be associated with the credit note.

Note

Credit note number

Optional reference message ie: Debit remittance detail.

Credit Note reference

Indicates the total credit amount still available to apply towards the payment.

Remaining Credit

Credit Note status

Optional terms to be associated with the credit note.

Whether this credit note reduces an amount owed by a customer (accounts receivable) or owed to a supplier (accounts payable). `accounts_payable_credit` support is connector-specific — most connectors only expose the accounts-receivable side. Check the connector's gotchas for known deviations.

Task	You (Customer)	Your Consumer	Apideck
sevDesk plan that includes API access	—	✓	—
Generate the API token in sevDesk	—	✓	Docs provided
Add the token to the connection	✓ (if collected on the consumer's behalf)	✓	—
Supply a replacement token after one is regenerated	—	✓	—
Change events (virtual webhooks)	—	—	✓ Polled and emitted automatically
Build via the Unified API	✓	—	Maintains connector
Monitor connections	✓ Via Apideck Dashboard	✓ Can revoke the token anytime	Logs & alerts

sevDesk

At a Glance

Responsibility matrix

Environments

🚨Important to Know About sevDesk