aid: unit4
name: Unit4
description: Unit4 provides cloud ERP software for service-centric organizations including professional services, public sector, education, and non-profits. Their REST APIs cover financials, HR, payroll, project management, procurement, inventory, and business planning through the ERPx platform, plus PEPPOL-based electronic document exchange via Unit4 Access Point.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/unit4/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
  - ERP
  - Cloud ERP
  - Enterprise Resource Planning
  - Financials
  - Human Resources
  - Payroll
  - Project Management
  - Procurement
  - Inventory Management
  - Business Planning
  - PEPPOL
  - E-Invoicing
  - Service Organizations
  - Public Sector
apis:
  - name: Unit4 ERPx REST API
    description: Comprehensive REST API for Unit4 ERPx cloud ERP platform covering time and expenses, personnel, payroll, procurement, project management, customers and sales, inventory management, planning, commitment accounting, accounting, and reporting. Supports OAuth 2.0 and machine-to-machine (M2M) authentication via client credentials flow.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://develop.unit4rd.com/
    baseURL: https://api.unit4.com
    tags:
      - ERP
      - Financials
      - HR
      - Payroll
      - Projects
      - Procurement
    properties:
      - type: Documentation
        url: https://develop.unit4rd.com/erpx/
      - type: APIReference
        url: https://develop.unit4cloud.com/erpx/reference/
      - type: Authentication
        url: https://develop.unit4rd.com/erpx/auth-security/
      - type: RateLimits
        url: https://develop.unit4rd.com/erpx/limits-and-quotas/
      - type: Versioning
        url: https://develop.unit4rd.com/erpx/version_deprecation/
      - type: Changelog
        url: https://develop.unit4rd.com/erpx/version_deprecation/deprecated_endpoints/2026/
  - name: Unit4 Access Point REST API
    description: REST API for the Unit4 Access Point PEPPOL service enabling organizations to send and receive electronic business documents (invoices, orders) over the PEPPOL network. Uses Basic Authentication over HTTPS with XML payloads.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://ap.unit4.com/rest.html
    baseURL: https://ap.unit4.com
    tags:
      - PEPPOL
      - E-Invoicing
      - Electronic Documents
      - B2B
    properties:
      - type: Documentation
        url: https://ap.unit4.com/rest.html
      - type: TestEnvironment
        url: https://ap-test.unit4.com/
common:
  - type: Website
    url: https://www.unit4.com/
  - type: Documentation
    url: https://develop.unit4rd.com/
  - type: GitHubOrg
    url: https://github.com/Unit4
  - type: LinkedIn
    url: https://www.linkedin.com/company/unit4
  - type: Blog
    url: https://www.unit4.com/blog
  - type: Pricing
    url: https://www.unit4.com/contact-us
  - type: StatusPage
    url: https://statusgator.com/services/df/unit4-erp
  - type: X
    url: https://twitter.com/unit4global
  - type: Plans
    url: plans/unit4-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/unit4-rate-limits.yml
  - type: FinOps
    url: finops/unit4-finops.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com