Business Box

Business Box provides an integrated booking and payment platform tailored for Japanese small businesses. It combines a booking page, calendar synchronization with Google and Outlook, and Stripe‑based pre‑payment handling, all in one service. Users can publish booking pages, automatically sync availability, and receive payments directly into their Stripe accounts without additional fees. The service includes free usage tiers, supports Japanese public holidays, offers bilingual (Japanese/English) interfaces, and is built for the Japanese market.

Business Box publishes 5 API contracts indexed on the APIs.io network, including Account API, Bookings API, Event types API, and 2 more. Tagged areas include Company, Booking, Payments, Calendar, and Japan.

The Business Box catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

Business Box’s developer surface includes changelog, authentication, documentation, API reference, getting-started guide, support, signup flow, and 30 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

54.7/100 strong ▲ 8.3 Agent 35/100 agent ready Heartbeat 98/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

1 published contract 2 Agent Skills

Company Booking Payments Calendar Japan

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Developer Platform & API Ecosystem Management

BC-4270

Webhooks

POST /webhooks

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 54.7/100 · strong

Contract Quality 11.9 / 19

Developer Ergonomics 9.6 / 15

Access Clarity 8.3 / 15

Operational Transparency 4.4 / 10

Contract Governance 2.0 / 9

Discoverability 5.6 / 8

Regulatory Posture 2.6 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified) Ask about this →

4 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Governance scores 22.0 — up to +9.4 composite points Ask about this →
Contract Quality scores 63.7 — up to +9.1 composite points Ask about this →
Access Clarity scores 55.3 — up to +8.9 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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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 the provider profile at artifacts.apis.io/marubox/apis.yml: open an issue on github.com/api-evangelist/marubox to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 5

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

Business Box Account API

Who the token belongs to

Business Box Bookings API

Read, create and cancel bookings

Business Box Event types API

What people can book, and when

Business Box Invites API

Single-use booking links

Business Box Webhooks API

Subscribe to events

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

marubox-bookings-create-and-manage

AGENT SKILL

marubox-manage-webhook-subscription

AGENT SKILL

Business Box API pricing

Prices published by Business Box, read 2026-10-02 from marubox.jp/guide/subscription-and-billing. A free plan or tier is listed.

Plan	Price
Free	Free
Paid	¥1,200/ month

Plan details, limits and sources →

Rate limits

default: 120 requests a minute, per key

Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Business Box Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Business Box Rate Limits

1 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Business Box

8 quoted statements, read from Business Box's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Business Box

18 quoted statements, read from Business Box's own page on 2026-11-10.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Business Box

2 quoted statements, read from Business Box's own page on 2026-11-10.

ELIGIBILITY

FinOps 1

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

Business Box Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Marubox Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Marubox Context

1 classes · 17 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Business Box API Rules

19 rules · 17 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

Business Box Authentication

1 scheme

SECURITY

Business Box Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Business Box Agentic Access

12 operations · 5 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 9

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

ChangeLog

ChangeLog

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

UsageTerms

Company 2

The organization behind the API

Newsroom

Newsroom

Website

Website

Other 5

Properties that don't map to a standard resource type

CapabilityMap

Hosts

Vendors

DataProcessing

Eligibility

Source (apis.yml)

aid: marubox
name: Business Box
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-13'
  method: derived
image: https://marubox.jp/logo.png
description: Business Box provides an integrated booking and payment platform tailored for Japanese small businesses. It combines
  a booking page, calendar synchronization with Google and Outlook, and Stripe‑based pre‑payment handling, all in one service.
  Users can publish booking pages, automatically sync availability, and receive payments directly into their Stripe accounts
  without additional fees. The service includes free usage tiers, supports Japanese public holidays, offers bilingual (Japanese/English)
  interfaces, and is built for the Japanese market.
url: https://raw.githubusercontent.com/api-evangelist/marubox/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-02 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-02'
modified: '2026-10-02'
tags:
- Company
- Booking
- Payments
- Calendar
- Japan
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/marubox-capability-edges.yml
  name: Business Box Business Capability Map
- type: AgenticAccess
  url: agentic-access/marubox-agentic-access.yml
- type: RateLimits
  url: rate-limits/marubox-rate-limits.yml
- type: Plans
  url: plans/marubox-plans-pricing.yml
- type: Spectral
  url: rules/marubox-rules.yml
- type: JSONLD
  url: json-ld/marubox-context.jsonld
- type: Vocabulary
  url: vocabulary/marubox-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Webhooks
  url: asyncapi/marubox-webhooks.yml
- type: DataModel
  url: data-model/marubox-data-model.yml
- type: ChangeLog
  url: changelog/marubox-changelog.yml
- type: Idempotency
  url: conventions/marubox-conventions.yml
- type: Conventions
  url: conventions/marubox-conventions.yml
- type: Authentication
  url: authentication/marubox-authentication.yml
- type: ErrorCatalog
  url: errors/marubox-problem-types.yml
- type: Conformance
  url: conformance/marubox-conformance.yml
- type: LLMsTxt
  url: llms/marubox-llms.txt
- type: Hosts
  url: hosts/marubox-hosts.yml
- type: Vendors
  url: vendors/marubox-vendors.yml
- type: SDKs
  url: packages/marubox-packages.yml
- type: Packages
  url: packages/marubox-packages.yml
- type: Newsroom
  url: https://marubox.jp/press
- type: ChangeLog
  url: https://marubox.jp/developers/changelog/
- type: GitHubOrganization
  url: https://github.com/marubox
- type: DomainSecurity
  url: security/marubox-domain-security.yml
- type: Website
  url: https://marubox.jp/
- type: Documentation
  url: https://marubox.jp/developers/
- type: DeveloperPortal
  url: https://marubox.jp/developers/
- type: APIReference
  url: https://marubox.jp/developers/reference/
- type: GettingStarted
  url: https://marubox.jp/guide/
- type: Support
  url: https://marubox.jp/support
- type: SignUp
  url: https://app.marubox.jp/login
- type: TermsOfService
  url: https://marubox.jp/terms
- type: PrivacyPolicy
  url: https://marubox.jp/privacy
- type: UsageTerms
  url: terms/marubox-terms-of-service.yml
- type: DataProcessing
  url: privacy/marubox-privacy-policy.yml
- type: Eligibility
  url: eligibility/marubox-eligibility.yml
apis:
- aid: marubox:marubox-account-api
  name: Business Box Account API
  description: Who the token belongs to
  humanURL: https://marubox.jp/developers/reference/
  baseURL: https://api.marubox.jp/v1
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/marubox-account-api-openapi.yml
- aid: marubox:marubox-bookings-api
  name: Business Box Bookings API
  description: Read, create and cancel bookings
  humanURL: https://marubox.jp/developers/reference/
  baseURL: https://api.marubox.jp/v1
  tags:
  - Booking
  tags_raw:
  - Bookings
  properties:
  - type: OpenAPI
    url: openapi/marubox-bookings-api-openapi.yml
- aid: marubox:marubox-event-types-api
  name: Business Box Event types API
  description: What people can book, and when
  humanURL: https://marubox.jp/developers/reference/
  baseURL: https://api.marubox.jp/v1
  tags:
  - Event Types
  tags_raw:
  - Event types
  properties:
  - type: OpenAPI
    url: openapi/marubox-event-types-api-openapi.yml
- aid: marubox:marubox-invites-api
  name: Business Box Invites API
  description: Single-use booking links
  humanURL: https://marubox.jp/developers/reference/
  baseURL: https://api.marubox.jp/v1
  tags:
  - Invites
  properties:
  - type: OpenAPI
    url: openapi/marubox-invites-api-openapi.yml
- aid: marubox:marubox-webhooks-api
  name: Business Box Webhooks API
  description: Subscribe to events
  humanURL: https://marubox.jp/developers/reference/
  baseURL: https://api.marubox.jp/v1
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/marubox-webhooks-api-openapi.yml
x-submission-notes: Booking API for Japanese small businesses (event types, slots, bookings, webhooks) plus a free Japanese
  holidays feed. Resubmitted 2026-10-02 (notice 3010) adding GitHub links.
x-submission-probe: root 200; developers 200; api.marubox.jp/v1/openapi.json OpenAPI 3.1.0 9 paths; llms.txt 200; holidays
  page 200; 404 probe 200 SOFT-404 on marubox.jp (homepage served)
x-enrichment:
  date: '2026-10-02'
  status: enriched
  artifacts_added: 26
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Business Box API — frequently asked questions

Does Business Box have an API?

Yes. APIs.io lists 5 APIs from Business Box, including Business Box Account API, Business Box Bookings API and Business Box Event types API, and 2 more.

Is there an OpenAPI specification for the Business Box API?

Yes. APIs.io indexes 5 OpenAPI specifications for Business Box, each linked for download from this page.

How do I authenticate with the Business Box API?

Business Box uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Business Box Authentication.

How much does the Business Box API cost?

Business Box publishes its prices; its Paid plan is ¥1,200/ month as of 2026-10-02. APIs.io lists 2 pricing plans for Business Box, with each plan's price, limits and inclusions under Pricing on this page.

Is the Business Box API ready for AI agents?

Business Box has a Kin Score of 54.7 out of 100 (strong) and an Agent Readiness score of 34.5 (agent-ready), scored by API Evangelist on 2026-11-13.

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