sevdesk

sevdesk is a German cloud accounting, invoicing, and bookkeeping platform for freelancers and small businesses. Its RESTful API (base https://my.sevdesk.de/api/v1) exposes everything the web application does - contacts, invoices, orders, credit notes, vouchers (receipts), bank check accounts and transactions, parts (inventory), tags, plus DATEV and CSV exports - authenticated with a per-administrator API token passed in the Authorization header. Nested resources can be pulled in with the embed query parameter.

sevdesk publishes 9 APIs on the APIs.io network, including CheckAccount API, CheckAccountTransaction API, Contact API, and 6 more. Tagged areas include Accounting, Invoicing, Bookkeeping, Finance, and Germany.

sevdesk’s developer surface includes authentication, documentation, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.4/100 thin ▬ flat Agent 48/100 agent ready Full breakdown ↓
scored 2026-07-23 · rubric v0.5
AccessFreemiumSelf serveFree trial⚡ Free to try
9 APIs
AccountingInvoicingBookkeepingFinanceGermanyVouchersContactsSaaSERPFinancial Software

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-23 · rubric v0.5
Composite quality — 38.4/100 · thin
Contract Quality 14.6 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/sevdesk: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 9

Individual APIs this provider publishes, each with its own machine-readable definition.

sevdesk CheckAccount API

Bank and clearing check accounts.

sevdesk CheckAccountTransaction API

Transactions booked against a check account.

sevdesk Contact API

Contacts - customers, suppliers, and other business partners.

sevdesk CreditNote API

Credit notes issued to contacts.

sevdesk Invoice API

Outgoing invoices and their lifecycle.

sevdesk Order API

Orders, quotations, and packing lists.

sevdesk Part API

Parts / articles with stock (inventory).

sevdesk Tag API

Tags and tag relations used to label resources.

sevdesk Voucher API

Vouchers (receipts) used for expense and revenue bookkeeping.

Scroll for all 9

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

sevdesk API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Sevdesk Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Sevdesk Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Sevdesk Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Sevdesk Authentication

apiKey · 1 scheme

SECURITY

Sevdesk Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Sevdesk Agentic Access

30 operations · 13 acting

30 operations · 13 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
opencollection: 1.0.0
info:
  name: sevdesk API
  version: '1.0'
request:
  auth:
    type: apikey
    apikey:
      key: Authorization
      value: '{{apiToken}}'
      in: header
items:
- info:
    name: Contact
    type: folder
  items:
  - info:
      name: Retrieve contacts
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Contact?limit=100&offset=0
    docs: Retrieves a list of contacts. Use limit/offset to page and embed to expand nested resources.
  - info:
      name: Create a new contact
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/Contact
      body:
        type: json
        data: "{\n  \"name\": \"Example GmbH\",\n  \"category\": { \"id\": 3, \"objectName\": \"Category\" }\n}"
    docs: Creates a new contact. category is required; id 3 is the Customer category.
  - info:
      name: Find contact by ID
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Contact/:contactId
      params:
      - name: contactId
        value: ''
        type: path
        description: The ID of the contact.
    docs: Retrieves a single contact by ID.
  - info:
      name: Update a existing contact
      type: http
    http:
      method: PUT
      url: https://my.sevdesk.de/api/v1/Contact/:contactId
      params:
      - name: contactId
        value: ''
        type: path
        description: The ID of the contact.
      body:
        type: json
        data: '{}'
    docs: Updates an existing contact.
  - info:
      name: Deletes a contact
      type: http
    http:
      method: DELETE
      url: https://my.sevdesk.de/api/v1/Contact/:contactId
      params:
      - name: contactId
        value: ''
        type: path
        description: The ID of the contact.
    docs: Deletes a contact.
  - info:
      name: Get next free customer number
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Contact/Factory/getNextCustomerNumber
    docs: Returns the next free customer number sevdesk would assign.
- info:
    name: Invoice
    type: folder
  items:
  - info:
      name: Retrieve invoices
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Invoice?limit=100&offset=0
    docs: Retrieves a list of invoices.
  - info:
      name: Create a new invoice
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/Invoice/Factory/saveInvoice
      body:
        type: json
        data: "{\n  \"invoice\": {},\n  \"invoicePosSave\": [],\n  \"invoicePosDelete\": null\n}"
    docs: Creates a new invoice together with its positions via the saveInvoice factory.
  - info:
      name: Find invoice by ID
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Invoice/:invoiceId
      params:
      - name: invoiceId
        value: ''
        type: path
        description: The ID of the invoice.
    docs: Retrieves a single invoice by ID.
  - info:
      name: Retrieve pdf document of an invoice
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Invoice/:invoiceId/getPdf
      params:
      - name: invoiceId
        value: ''
        type: path
        description: The ID of the invoice.
    docs: Returns the rendered PDF document for an invoice.
  - info:
      name: Send invoice via email
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/Invoice/:invoiceId/sendViaEmail
      params:
      - name: invoiceId
        value: ''
        type: path
        description: The ID of the invoice.
      body:
        type: json
        data: "{\n  \"toEmail\": \"customer@example.com\",\n  \"subject\": \"Your invoice\",\n  \"text\": \"Please find your\
          \ invoice attached.\"\n}"
    docs: Sends the invoice to a recipient by email.
- info:
    name: Order
    type: folder
  items:
  - info:
      name: Retrieve orders
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Order?limit=100&offset=0
    docs: Retrieves a list of orders (quotations, order confirmations).
  - info:
      name: Create a new order
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/Order/Factory/saveOrder
      body:
        type: json
        data: "{\n  \"order\": {},\n  \"orderPosSave\": [],\n  \"orderPosDelete\": null\n}"
    docs: Creates a new order together with its positions.
  - info:
      name: Find order by ID
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Order/:orderId
      params:
      - name: orderId
        value: ''
        type: path
        description: The ID of the order.
    docs: Retrieves a single order by ID.
  - info:
      name: Update an existing order
      type: http
    http:
      method: PUT
      url: https://my.sevdesk.de/api/v1/Order/:orderId
      params:
      - name: orderId
        value: ''
        type: path
        description: The ID of the order.
      body:
        type: json
        data: '{}'
    docs: Updates an existing order.
  - info:
      name: Deletes an order
      type: http
    http:
      method: DELETE
      url: https://my.sevdesk.de/api/v1/Order/:orderId
      params:
      - name: orderId
        value: ''
        type: path
        description: The ID of the order.
    docs: Deletes an order.
- info:
    name: CreditNote
    type: folder
  items:
  - info:
      name: Retrieve CreditNote
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/CreditNote?limit=100&offset=0
    docs: Retrieves a list of credit notes.
  - info:
      name: Create a new creditNote
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/CreditNote/Factory/saveCreditNote
      body:
        type: json
        data: "{\n  \"creditNote\": {},\n  \"creditNotePosSave\": [],\n  \"creditNotePosDelete\": null\n}"
    docs: Creates a new credit note together with its positions.
- info:
    name: Voucher
    type: folder
  items:
  - info:
      name: Retrieve vouchers
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Voucher?limit=100&offset=0
    docs: Retrieves a list of vouchers (receipts).
  - info:
      name: Create a new voucher
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/Voucher/Factory/saveVoucher
      body:
        type: json
        data: "{\n  \"voucher\": {},\n  \"voucherPosSave\": [],\n  \"voucherPosDelete\": null\n}"
    docs: Creates a new voucher together with its positions.
  - info:
      name: Find voucher by ID
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Voucher/:voucherId
      params:
      - name: voucherId
        value: ''
        type: path
        description: The ID of the voucher.
    docs: Retrieves a single voucher by ID.
- info:
    name: Bank and Transactions
    type: folder
  items:
  - info:
      name: Retrieve check accounts
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/CheckAccount
    docs: Retrieves the list of bank and clearing check accounts.
  - info:
      name: Find check account by ID
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/CheckAccount/:checkAccountId
      params:
      - name: checkAccountId
        value: ''
        type: path
        description: The ID of the check account.
    docs: Retrieves a single check account by ID.
  - info:
      name: Retrieve transactions
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/CheckAccountTransaction?limit=100&offset=0
    docs: Retrieves transactions booked against check accounts.
  - info:
      name: Create a new transaction
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/CheckAccountTransaction
      body:
        type: json
        data: '{}'
    docs: Creates a new check account transaction.
- info:
    name: Part
    type: folder
  items:
  - info:
      name: Retrieve parts
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Part?limit=100&offset=0
    docs: Retrieves a list of parts / articles.
  - info:
      name: Create a new part
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/Part
      body:
        type: json
        data: "{\n  \"name\": \"Widget\",\n  \"partNumber\": \"W-001\",\n  \"unity\": { \"id\": 1, \"objectName\": \"Unity\"\
          \ }\n}"
    docs: Creates a new part / article.
  - info:
      name: Get stock of a part
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Part/:partId/getStock
      params:
      - name: partId
        value: ''
        type: path
        description: The ID of the part.
    docs: Returns the current stock quantity of a part.
- info:
    name: Tag
    type: folder
  items:
  - info:
      name: Retrieve tags
      type: http
    http:
      method: GET
      url: https://my.sevdesk.de/api/v1/Tag
    docs: Retrieves the list of tags.
  - info:
      name: Create a new tag
      type: http
    http:
      method: POST
      url: https://my.sevdesk.de/api/v1/Tag/Factory/create
      body:
        type: json
        data: "{\n  \"name\": \"priority\",\n  \"objectType\": \"Invoice\"\n}"
    docs: Creates a new tag and relates it to an object.
bundled: true