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

39.2/100 thin ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serveFree trial⚡ Free to try

1 APIs

Accounting Invoicing Bookkeeping Finance Germany Vouchers Contacts Software-as-a-Service ERP Financial Software

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 39.2/100 · thin

Contract Quality 12.8 / 23

Developer Ergonomics 5.8 / 18

Access Clarity 7.1 / 18

Operational Transparency 4.0 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. 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. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

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 11

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

API Collection

OPEN COLLECTION

sevdesk CheckAccount API

OPEN COLLECTION

sevdesk CheckAccount CheckAccountTransaction API

OPEN COLLECTION

sevdesk CheckAccount Contact API

OPEN COLLECTION

sevdesk CheckAccount CreditNote API

OPEN COLLECTION

sevdesk CheckAccount Invoice API

OPEN COLLECTION

sevdesk CheckAccount Order API

OPEN COLLECTION

sevdesk CheckAccount Part API

OPEN COLLECTION

sevdesk CheckAccount Tag API

OPEN COLLECTION

sevdesk CheckAccount Voucher API

OPEN COLLECTION

sevdesk API

OPEN COLLECTION

Scroll for all 11

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

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

Website

Website

Blog

Blog

Source (apis.yml)

aid: sevdesk
url: https://raw.githubusercontent.com/api-evangelist/sevdesk/refs/heads/main/apis.yml
name: sevdesk
kind: company
description: 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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Freemium (free trial) · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sevdesk.png
tags:
- Accounting
- Invoicing
- Bookkeeping
- Finance
- Germany
- Vouchers
- Contacts
- Software-as-a-Service
- ERP
- Financial Software
tags_raw:
- Accounting
- Invoicing
- Bookkeeping
- Finance
- Germany
- Vouchers
- Contacts
- SaaS
- ERP
- Financial Software
created: '2026-07-12'
modified: '2026-07-12'
specificationVersion: '0.23'
apis:
- aid: sevdesk:sevdesk-checkaccount-api
  name: sevdesk CheckAccount API
  description: Bank and clearing check accounts.
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - CheckAccount
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-checkaccount-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
- aid: sevdesk:sevdesk-checkaccounttransaction-api
  name: sevdesk CheckAccountTransaction API
  description: Transactions booked against a check account.
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - CheckAccountTransaction
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-checkaccounttransaction-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
- aid: sevdesk:sevdesk-contact-api
  name: sevdesk Contact API
  description: Contacts - customers, suppliers, and other business partners.
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - Contact
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-contact-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
- aid: sevdesk:sevdesk-creditnote-api
  name: sevdesk CreditNote API
  description: Credit notes issued to contacts.
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - CreditNote
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-creditnote-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
- aid: sevdesk:sevdesk-invoice-api
  name: sevdesk Invoice API
  description: Outgoing invoices and their lifecycle.
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - Invoice
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-invoice-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
- aid: sevdesk:sevdesk-order-api
  name: sevdesk Order API
  description: Orders, quotations, and packing lists.
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - Order
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-order-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
- aid: sevdesk:sevdesk-part-api
  name: sevdesk Part API
  description: Parts / articles with stock (inventory).
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - Part
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-part-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
- aid: sevdesk:sevdesk-tag-api
  name: sevdesk Tag API
  description: Tags and tag relations used to label resources.
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - Tag
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-tag-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
- aid: sevdesk:sevdesk-voucher-api
  name: sevdesk Voucher API
  description: Vouchers (receipts) used for expense and revenue bookkeeping.
  humanURL: https://api.sevdesk.de/
  baseURL: https://my.sevdesk.de/api/v1
  tags:
  - Voucher
  properties:
  - type: OpenAPI
    url: openapi/sevdesk-voucher-api-openapi.yml
  - type: Documentation
    url: https://api.sevdesk.de/
  - type: APIReference
    url: https://api.sevdesk.de/
  - type: PostmanCollection
    url: collections/sevdesk.postman_collection.json
  - type: OpenCollection
    url: collections/sevdesk.opencollection.json
common:
- type: AgenticAccess
  url: agentic-access/sevdesk-agentic-access.yml
- type: DomainSecurity
  url: security/sevdesk-domain-security.yml
- type: Authentication
  url: authentication/sevdesk-authentication.yml
- type: GitHubOrganization
  url: https://github.com/sevdesk
- type: LinkedIn
  url: https://www.linkedin.com/company/sevdesk
- type: Website
  url: https://sevdesk.de
- type: Documentation
  url: https://api.sevdesk.de/
- type: Plans
  url: plans/sevdesk-plans-pricing.yml
- type: RateLimits
  url: rate-limits/sevdesk-rate-limits.yml
- type: FinOps
  url: finops/sevdesk-finops.yml
- url: https://tech.sevdesk.com/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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