aid: layerx
name: LayerX
description: 'LayerX Inc. (株式会社LayerX) is a Tokyo-based enterprise software company founded
  1 August 2018, operating as a compound startup across four business lines: Bakuraku (バクラク),
  an AI back-office suite covering expense reimbursement, invoice receipt and issuance, workflow
  and approvals, electronic bookkeeping, attendance, payroll and a corporate card; Ai Workforce,
  an enterprise LLM document-processing platform; a Fintech business run through the Mitsui-X /
  Mitsui & Co. Digital Asset Management joint venture; and a Security business added through the
  April 2026 acquisition of AgenticSec Inc. Its developer surface is the Bakuraku API — a REST
  API at api.bakuraku.layerx.jp built on an internal unified GraphQL gateway and tsoa, exposing
  application/approval retrieval and creation, attachment download, and tenant user, group and
  position directories. API access is granted by application to existing Bakuraku customers, who
  are issued a scoped API key from the Bakuraku admin console; the API reference at
  /rest/docs/ is HTTP Basic protected and no OpenAPI definition is published publicly.'
image: https://layerx.co.jp/wp-content/uploads/2023/10/cropped-Icon_Square-300x300.png
url: https://raw.githubusercontent.com/api-evangelist/layerx/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment-2026-08-23
specificationVersion: '0.20'
created: '2026-08-23'
modified: '2026-08-23'
tags:
- Company
- Japan
- Back Office
- Expense Management
- Invoicing
- Accounts Payable
- Workflow
- Approvals
- Accounting
- Payroll
- Attendance
- Corporate Cards
- Artificial Intelligence
- AI Agents
- Document Processing
- SaaS
- Enterprise Software
- Fintech
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Bakuraku API
  description: 'REST API for the Bakuraku (バクラク) back-office suite. Publicly documented
    capabilities are retrieval and list-search of applications/requests (申請), download of
    attached files, creation of applications for the purchase-request, payment-request and
    general-purpose application types, and read access to the tenant user, group and position
    directory. Bakuraku 請求書発行 additionally exposes document upload (CSV/PDF) and
    recipient-master create/update. Authentication is a scoped API key issued from the Bakuraku
    admin console (API管理). Access requires an existing Bakuraku contract plus a separate API
    application; the reference at https://api.bakuraku.layerx.jp/rest/docs/ answers HTTP 401
    with WWW-Authenticate: Basic to anonymous callers and no OpenAPI is published.'
  humanURL: https://bakuraku.jp/workflow/function/api/
  baseURL: https://api.bakuraku.layerx.jp/rest
  tags:
  - Expense Management
  - Invoicing
  - Workflow
  - Approvals
  - Back Office
  properties:
  - type: Documentation
    url: https://bakuraku.jp/workflow/function/api/
  - type: APIReference
    url: https://api.bakuraku.layerx.jp/rest/docs/
  - type: TermsOfService
    url: https://bakuraku.jp/terms/api-terms/
  - type: Authentication
    url: authentication/layerx-authentication.yml
  - type: Conventions
    url: conventions/layerx-conventions.yml
  - type: ErrorCatalog
    url: errors/layerx-error-codes.yml
  - type: RateLimits
    url: rate-limits/layerx-rate-limits.yml
  - type: Lifecycle
    url: lifecycle/layerx-lifecycle.yml
common:
- type: Website
  url: https://layerx.co.jp/
- type: DeveloperPortal
  url: https://bakuraku.jp/workflow/function/api/
- type: Documentation
  url: https://bakuraku.jp/workflow/function/api/
- type: APIReference
  url: https://api.bakuraku.layerx.jp/rest/docs/
- type: Support
  url: https://bakuraku-login.layerx.jp/hc/ja
- type: Blog
  url: https://tech.layerx.co.jp/
- type: GitHubOrganization
  url: https://github.com/LayerXcom
- type: Pricing
  url: https://bakuraku.jp/expense/price/
- type: SignUp
  url: https://id.layerx.jp/auth/sign_in
- type: TermsOfService
  url: https://bakuraku.jp/terms/api-terms/
- type: PrivacyPolicy
  url: https://layerx.co.jp/privacy/
- type: StatusPage
  url: https://bakuraku-status.jp/
- type: Security
  url: https://layerx.co.jp/security_policy/
- type: TrustCenter
  url: https://bakuraku.jp/security/
- type: Compliance
  url: conformance/layerx-conformance.yml
- type: Conformance
  url: conformance/layerx-conformance.yml
- type: VulnerabilityDisclosure
  url: security/layerx-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/layerx-domain-security.yml
- type: Authentication
  url: authentication/layerx-authentication.yml
- type: Conventions
  url: conventions/layerx-conventions.yml
- type: ErrorCatalog
  url: errors/layerx-error-codes.yml
- type: Lifecycle
  url: lifecycle/layerx-lifecycle.yml
- type: RateLimits
  url: rate-limits/layerx-rate-limits.yml
- type: Plans
  url: plans/layerx-plans-pricing.yml
- type: ChangeLog
  url: changelog/layerx-changelog.yml
- type: Packages
  url: packages/layerx-packages.yml
- type: LLMsTxt
  url: llms/layerx-llms.txt
x-enrichment:
  date: '2026-08-23'
  status: enriched
  artifacts_added: 17
  pass: local-v1
x-coverage:
  state: gated
  reason: customer-only-docs
  detail: >-
    The Bakuraku REST API is live and reachable at https://api.bakuraku.layerx.jp/rest —
    it answers anonymous calls with its own JSON error envelope and an x-layerx-request-id
    header — but its reference at /rest/docs/ sits behind HTTP Basic auth at the AWS load
    balancer (401, WWW-Authenticate: Basic), issued only to companies LayerX has approved
    as an "API契約者" on top of an existing Bakuraku subscription, and the API terms state
    the specification document is supplied separately to those customers, so no OpenAPI
    exists at any public URL.
  evidence:
    - url: https://api.bakuraku.layerx.jp/rest/docs/
      status: 401
    - url: https://api.bakuraku.layerx.jp/rest/v1/tenant/users
      status: 400
    - url: https://api.bakuraku.layerx.jp/openapi.json
      status: 404
    - url: https://bakuraku.jp/terms/api-terms/
      status: 200
  checked: '2026-08-23'