KUFU

aid: kufu
name: KUFU
description: KUFU, Inc. is the founding name of SmartHR, Inc., the Japanese cloud HR platform, and remains the company's GitHub
  organization identity. SmartHR is a system of record for employee data across Japanese back-office HR — hiring and onboarding,
  social insurance and labour paperwork, family and dependent records, organizational structure, payslips, and withholding
  tax slips. The SmartHR API is a tenant-scoped REST API on a per-customer subdomain, described by a live Swagger 2.0 document
  covering 60 paths and 120 operations, and is offered free to existing SmartHR customers. It ships a webhook event surface,
  an application-gated sandbox on a separate domain, and an open-source React component library, but no official client SDK.
url: https://raw.githubusercontent.com/api-evangelist/kufu/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://smarthr.jp/_astro/ogp_a-1.BA0NIxgO.jpg
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: enriched
x-tier-reason: live-openapi-and-docs
x-legal-name: SmartHR, Inc.
x-former-name: KUFU, Inc.
x-country: JP
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Human Resources
- HR Tech
- Payroll
- Employee Data
- SaaS
- Japan
- Onboarding
- Social Insurance
- Webhooks
apis:
- aid: kufu:kufu-default-api
  name: KUFU カスタム家族項目テンプレート API
  description: カスタム家族項目テンプレートを操作します
  humanURL: https://developer.smarthr.jp/api
  baseURL: https://app.smarthr.jp/api/v1
  tags:
  - カスタム家族項目テンプレート
  properties:
  - type: OpenAPI
    url: openapi/kufu-default-api-openapi.yml
  - type: Webhooks
    url: asyncapi/kufu-smarthr-webhooks.yml
  - type: Authentication
    url: authentication/kufu-authentication.yml
  - type: Conventions
    url: conventions/kufu-conventions.yml
  - type: ErrorCatalog
    url: errors/kufu-problem-types.yml
  - type: DataModel
    url: data-model/kufu-data-model.yml
  - type: Sandbox
    url: sandbox/kufu-sandbox.yml
  - type: Lifecycle
    url: lifecycle/kufu-lifecycle.yml
  - type: Conformance
    url: conformance/kufu-conformance.yml
  - type: LLMsTxt
    url: llms/kufu-llms.txt
  - type: Documentation
    url: https://developer.smarthr.jp/api
  - type: APIReference
    url: https://developer.smarthr.jp/api
  - type: GettingStarted
    url: https://developer.smarthr.jp/api/about_api
  - type: ChangeLog
    url: https://support.smarthr.jp/ja/release-notes/api/page/1/
- aid: kufu:kufu-webhook-api
  name: KUFU Webhook API
  description: Webhook を操作します
  humanURL: https://developer.smarthr.jp/api
  baseURL: https://app.smarthr.jp/api/v1
  tags:
  - Webhook
  properties:
  - type: OpenAPI
    url: openapi/kufu-webhook-api-openapi.yml
  - type: Webhooks
    url: asyncapi/kufu-smarthr-webhooks.yml
  - type: Authentication
    url: authentication/kufu-authentication.yml
  - type: Conventions
    url: conventions/kufu-conventions.yml
  - type: ErrorCatalog
    url: errors/kufu-problem-types.yml
  - type: DataModel
    url: data-model/kufu-data-model.yml
  - type: Sandbox
    url: sandbox/kufu-sandbox.yml
  - type: Lifecycle
    url: lifecycle/kufu-lifecycle.yml
  - type: Conformance
    url: conformance/kufu-conformance.yml
  - type: LLMsTxt
    url: llms/kufu-llms.txt
  - type: Documentation
    url: https://developer.smarthr.jp/api
  - type: APIReference
    url: https://developer.smarthr.jp/api
  - type: GettingStarted
    url: https://developer.smarthr.jp/api/about_api
  - type: ChangeLog
    url: https://support.smarthr.jp/ja/release-notes/api/page/1/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://smarthr.co.jp
- type: Portal
  url: https://smarthr.jp
- type: DeveloperPortal
  url: https://developer.smarthr.jp/
- type: Documentation
  url: https://developer.smarthr.jp/api
- type: APIReference
  url: https://developer.smarthr.jp/api
- type: GettingStarted
  url: https://developer.smarthr.jp/api/about_api
- type: Support
  url: https://support.smarthr.jp/ja/
- type: HelpCenter
  url: https://support.smarthr.jp/ja/
- type: Blog
  url: https://tech.smarthr.jp/
- type: GitHubOrganization
  url: https://github.com/kufu
- type: Pricing
  url: https://smarthr.jp/pricing/
- type: SignUp
  url: https://app.smarthr.jp/login
- type: TermsOfService
  url: https://smarthr.jp/terms/
- type: PrivacyPolicy
  url: https://smarthr.co.jp/privacy/
- type: DesignSystem
  url: https://smarthr.design/
- type: OpenAPI
  url: openapi/kufu-smarthr-openapi.json
- type: Overlay
  url: overlays/kufu-smarthr-overlay.yaml
- type: Webhooks
  url: asyncapi/kufu-smarthr-webhooks.yml
- type: Packages
  url: packages/kufu-packages.yml
- type: Components
  url: components/kufu-components.yml
- type: WellKnown
  url: well-known/kufu-well-known.yml
- type: SecurityTxt
  url: well-known/kufu-security.txt
- type: Security
  url: security/kufu-vulnerability-disclosure.yml
- type: VulnerabilityDisclosure
  url: security/kufu-vulnerability-disclosure.yml
- type: TrustCenter
  url: security/kufu-trust-center.yml
- type: Compliance
  url: security/kufu-trust-center.yml
- type: DomainSecurity
  url: security/kufu-domain-security.yml
- type: Conformance
  url: conformance/kufu-conformance.yml
- type: Authentication
  url: authentication/kufu-authentication.yml
- type: Conventions
  url: conventions/kufu-conventions.yml
- type: ErrorCatalog
  url: errors/kufu-problem-types.yml
- type: DataModel
  url: data-model/kufu-data-model.yml
- type: Sandbox
  url: sandbox/kufu-sandbox.yml
- type: Lifecycle
  url: lifecycle/kufu-lifecycle.yml
- type: ChangeLog
  url: changelog/kufu-changelog.yml
- type: MCPServer
  url: mcp/kufu-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/kufu-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence