Nmbrs

Nmbrs (Visma Nmbrs) is cloud HR and payroll software for the Netherlands and Sweden, widely used by employers, accountants, and payroll service providers. Nmbrs exposes its HRIS and payroll data through a public API in two generations. The current, forward-looking interface is a REST API served from https://api.nmbrsapp.com, authenticated with OAuth 2.0 (Authorization Code flow via identityservice.nmbrs.com) plus a per-product subscription key, with granular scopes over companies, employees, employments, salaries, wage components, payruns, and absences. The older SOAP API (api.nmbrs.nl/soap/v3 - EmployeeService, CompanyService, DebtorService) remains available for existing integrations but is deprecated and scheduled to be retired on 1 March 2027, after which REST is the only supported API.

Nmbrs publishes 7 APIs on the APIs.io network, including Absences API, Companies API, Employees API, and 4 more. Tagged areas include Human Resources, HRIS, Payroll, Employee Management, and HR.

Nmbrs’ developer surface includes authentication, documentation, API reference, signup flow, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

25.8/100 emerging ▬ flat Agent 25/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessPaidSelf serve

1 APIs

Human Resources HRIS Payroll Employee Management HR Absence Management Netherlands Sweden SOAP REST

Kin Score

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

Composite quality — 25.8/100 · emerging

Contract Quality 0.0 / 23

Developer Ergonomics 5.8 / 18

Access Clarity 9.5 / 18

Operational Transparency 2.5 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · 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 6 / 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/nmbrs: 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 10

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

Nmbrs SOAP EmployeeService (Legacy)

Legacy SOAP v3 EmployeeService (300+ operations, e.g. Employee_GetCurrent, Contract_GetAll, Salary_GetCurrent, Absence2_Insert, WageComponentFixed_Insert) authenticated with a u...

Nmbrs SOAP CompanyService (Legacy)

Legacy SOAP v3 CompanyService (120+ operations, e.g. Company_GetCurrentPeriod, Run_GetList, RunRequest_Insert, SalaryDocuments_GetAllPayslipsPDFByRunCompany, Journals_GetByRunCo...

Nmbrs SOAP DebtorService (Legacy)

Legacy SOAP v3 DebtorService for the accountant/debtor tier that owns companies (e.g. AccountantContact_GetList, Debtor_GetList). Deprecated - retiring 1 March 2027 in favor of ...

Nmbrs Absences API

Employee absence, leave, and sickness registrations.

Nmbrs Companies API

Company (employer) records within a Nmbrs environment.

Nmbrs Employees API

Employee records and their personal / HR information.

Nmbrs Employments API

Employment contracts and employment history for an employee.

Nmbrs Payruns API

Payroll runs (payruns) and their results for a company.

Nmbrs Salaries API

Salary and wage information for an employee.

Nmbrs Wage Components API

Fixed and variable wage components used in payroll.

Scroll for all 10

Open Collections 9

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

API Collection

OPEN COLLECTION

Nmbrs Public REST API (HR & Payroll) Absences API

OPEN COLLECTION

Nmbrs Public REST API (HR & Payroll) Absences Companies API

OPEN COLLECTION

Nmbrs Public REST API (HR & Payroll) Absences Employees API

OPEN COLLECTION

Nmbrs Public REST API (HR & Payroll) Absences Employments API

OPEN COLLECTION

Nmbrs Public REST API (HR & Payroll) Absences Payruns API

OPEN COLLECTION

Nmbrs Public REST API (HR & Payroll) Absences Salaries API

OPEN COLLECTION

Nmbrs Public REST API (HR & Payroll) Absences Wage Components API

OPEN COLLECTION

Nmbrs Public REST API (HR & Payroll)

OPEN COLLECTION

Scroll for all 9

Pricing Plans 1

Published pricing tiers and plan structures.

Nmbrs Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Nmbrs Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Nmbrs Finops

FINOPS

Security Posture 2

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

Nmbrs Authentication

oauth2/apiKey/soap-token · 3 schemes

SECURITY

Nmbrs Domain Security

HSTS · DMARC

SECURITY

Agentic Access 1

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

Nmbrs Agentic Access

10 operations · 2 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

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: nmbrs
url: https://raw.githubusercontent.com/api-evangelist/nmbrs/refs/heads/main/apis.yml
name: Nmbrs
kind: company
description: Nmbrs (Visma Nmbrs) is cloud HR and payroll software for the Netherlands and Sweden, widely used by employers,
  accountants, and payroll service providers. Nmbrs exposes its HRIS and payroll data through a public API in two generations.
  The current, forward-looking interface is a REST API served from https://api.nmbrsapp.com, authenticated with OAuth 2.0
  (Authorization Code flow via identityservice.nmbrs.com) plus a per-product subscription key, with granular scopes over companies,
  employees, employments, salaries, wage components, payruns, and absences. The older SOAP API (api.nmbrs.nl/soap/v3 - EmployeeService,
  CompanyService, DebtorService) remains available for existing integrations but is deprecated and scheduled to be retired
  on 1 March 2027, after which REST is the only supported API.
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: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · 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/nmbrs.png
tags:
- Human Resources
- HRIS
- Payroll
- Employee Management
- HR
- Absence Management
- Netherlands
- Sweden
- SOAP
- REST
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.23'
apis:
- aid: nmbrs:nmbrs-soap-employee-service
  name: Nmbrs SOAP EmployeeService (Legacy)
  tags:
  - SOAP
  - HRIS
  - Legacy
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://api.nmbrs.nl/soap/v3/EmployeeService.asmx
  baseURL: https://api.nmbrs.nl/soap/v3
  properties:
  - url: https://support.nmbrs.nl/hc/nl/articles/205903718-Nmbrs-API-for-developers
    type: Documentation
  - url: https://api.nmbrs.nl/soap/v3/EmployeeService.asmx
    type: APIReference
  - url: https://api.nmbrs.nl/soap/v3/EmployeeService.asmx?WSDL
    type: WSDL
  description: Legacy SOAP v3 EmployeeService (300+ operations, e.g. Employee_GetCurrent, Contract_GetAll, Salary_GetCurrent,
    Absence2_Insert, WageComponentFixed_Insert) authenticated with a username + API token. Deprecated - Nmbrs SOAP API is
    scheduled to be retired on 1 March 2027; migrate to the REST API.
- aid: nmbrs:nmbrs-soap-company-service
  name: Nmbrs SOAP CompanyService (Legacy)
  tags:
  - SOAP
  - Payroll
  - Legacy
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://api.nmbrs.nl/soap/v3/CompanyService.asmx
  baseURL: https://api.nmbrs.nl/soap/v3
  properties:
  - url: https://support.nmbrs.nl/hc/nl/articles/205903718-Nmbrs-API-for-developers
    type: Documentation
  - url: https://api.nmbrs.nl/soap/v3/CompanyService.asmx
    type: APIReference
  - url: https://api.nmbrs.nl/soap/v3/CompanyService.asmx?WSDL
    type: WSDL
  description: Legacy SOAP v3 CompanyService (120+ operations, e.g. Company_GetCurrentPeriod, Run_GetList, RunRequest_Insert,
    SalaryDocuments_GetAllPayslipsPDFByRunCompany, Journals_GetByRunCompany, WageTax_GetList) for company-level payroll, journals,
    and payslip documents. Deprecated - retiring 1 March 2027.
- aid: nmbrs:nmbrs-soap-debtor-service
  name: Nmbrs SOAP DebtorService (Legacy)
  tags:
  - SOAP
  - Debtors
  - Legacy
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://api.nmbrs.nl/soap/v3/DebtorService.asmx
  baseURL: https://api.nmbrs.nl/soap/v3
  properties:
  - url: https://support.nmbrs.nl/hc/nl/articles/205903718-Nmbrs-API-for-developers
    type: Documentation
  - url: https://api.nmbrs.nl/soap/v3/DebtorService.asmx
    type: APIReference
  - url: https://api.nmbrs.nl/soap/v3/DebtorService.asmx?WSDL
    type: WSDL
  description: Legacy SOAP v3 DebtorService for the accountant/debtor tier that owns companies (e.g. AccountantContact_GetList,
    Debtor_GetList). Deprecated - retiring 1 March 2027 in favor of the REST API.
- aid: nmbrs:nmbrs-absences-api
  name: Nmbrs Absences API
  description: Employee absence, leave, and sickness registrations.
  humanURL: https://developer.nmbrs.com/docs
  baseURL: https://api.nmbrsapp.com
  tags:
  - Absences
  properties:
  - type: OpenAPI
    url: openapi/nmbrs-absences-api-openapi.yml
  - type: Documentation
    url: https://developer.nmbrs.com/docs
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi
  - type: PostmanCollection
    url: collections/nmbrs.postman_collection.json
  - type: OpenCollection
    url: collections/nmbrs.opencollection.json
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi/a31578b069764-get-employee-list
- aid: nmbrs:nmbrs-companies-api
  name: Nmbrs Companies API
  description: Company (employer) records within a Nmbrs environment.
  humanURL: https://developer.nmbrs.com/docs
  baseURL: https://api.nmbrsapp.com
  tags:
  - Companies
  properties:
  - type: OpenAPI
    url: openapi/nmbrs-companies-api-openapi.yml
  - type: Documentation
    url: https://developer.nmbrs.com/docs
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi
  - type: PostmanCollection
    url: collections/nmbrs.postman_collection.json
  - type: OpenCollection
    url: collections/nmbrs.opencollection.json
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi/a31578b069764-get-employee-list
- aid: nmbrs:nmbrs-employees-api
  name: Nmbrs Employees API
  description: Employee records and their personal / HR information.
  humanURL: https://developer.nmbrs.com/docs
  baseURL: https://api.nmbrsapp.com
  tags:
  - Employees
  properties:
  - type: OpenAPI
    url: openapi/nmbrs-employees-api-openapi.yml
  - type: Documentation
    url: https://developer.nmbrs.com/docs
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi
  - type: PostmanCollection
    url: collections/nmbrs.postman_collection.json
  - type: OpenCollection
    url: collections/nmbrs.opencollection.json
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi/a31578b069764-get-employee-list
- aid: nmbrs:nmbrs-employments-api
  name: Nmbrs Employments API
  description: Employment contracts and employment history for an employee.
  humanURL: https://developer.nmbrs.com/docs
  baseURL: https://api.nmbrsapp.com
  tags:
  - Employments
  properties:
  - type: OpenAPI
    url: openapi/nmbrs-employments-api-openapi.yml
  - type: Documentation
    url: https://developer.nmbrs.com/docs
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi
  - type: PostmanCollection
    url: collections/nmbrs.postman_collection.json
  - type: OpenCollection
    url: collections/nmbrs.opencollection.json
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi/a31578b069764-get-employee-list
- aid: nmbrs:nmbrs-payruns-api
  name: Nmbrs Payruns API
  description: Payroll runs (payruns) and their results for a company.
  humanURL: https://developer.nmbrs.com/docs
  baseURL: https://api.nmbrsapp.com
  tags:
  - Pay Runs
  tags_raw:
  - Payruns
  properties:
  - type: OpenAPI
    url: openapi/nmbrs-payruns-api-openapi.yml
  - type: Documentation
    url: https://developer.nmbrs.com/docs
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi
  - type: PostmanCollection
    url: collections/nmbrs.postman_collection.json
  - type: OpenCollection
    url: collections/nmbrs.opencollection.json
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi/a31578b069764-get-employee-list
- aid: nmbrs:nmbrs-salaries-api
  name: Nmbrs Salaries API
  description: Salary and wage information for an employee.
  humanURL: https://developer.nmbrs.com/docs
  baseURL: https://api.nmbrsapp.com
  tags:
  - Salaries
  properties:
  - type: OpenAPI
    url: openapi/nmbrs-salaries-api-openapi.yml
  - type: Documentation
    url: https://developer.nmbrs.com/docs
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi
  - type: PostmanCollection
    url: collections/nmbrs.postman_collection.json
  - type: OpenCollection
    url: collections/nmbrs.opencollection.json
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi/a31578b069764-get-employee-list
- aid: nmbrs:nmbrs-wage-components-api
  name: Nmbrs Wage Components API
  description: Fixed and variable wage components used in payroll.
  humanURL: https://developer.nmbrs.com/docs
  baseURL: https://api.nmbrsapp.com
  tags:
  - Wage Components
  properties:
  - type: OpenAPI
    url: openapi/nmbrs-wage-components-api-openapi.yml
  - type: Documentation
    url: https://developer.nmbrs.com/docs
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi
  - type: PostmanCollection
    url: collections/nmbrs.postman_collection.json
  - type: OpenCollection
    url: collections/nmbrs.opencollection.json
  - type: APIReference
    url: https://nmbrs.stoplight.io/docs/nmbrs-restapi/a31578b069764-get-employee-list
common:
- type: AgenticAccess
  url: agentic-access/nmbrs-agentic-access.yml
- type: Authentication
  url: authentication/nmbrs-authentication.yml
- type: DomainSecurity
  url: security/nmbrs-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/nmbrs
- type: Website
  url: https://www.nmbrs.com
- type: Documentation
  url: https://developer.nmbrs.com/docs
- type: APIReference
  url: https://nmbrs.stoplight.io/docs/nmbrs-restapi
- type: SignUp
  url: https://developer.nmbrs.com
- type: Plans
  url: plans/nmbrs-plans-pricing.yml
- type: RateLimits
  url: rate-limits/nmbrs-rate-limits.yml
- type: FinOps
  url: finops/nmbrs-finops.yml
- url: https://www.nmbrs.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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