Graffer

Graffer, Inc. (株式会社グラファー) is a Tokyo-based GovTech and generative-AI company founded in 2017 whose mission is to change behavior and society through the power of products. It operates two pillars: the Graffer Platform, a suite of digital-government services for municipalities and national agencies (Smart Application for online applications, Procedure Guide, Window Reservation, and Graffer Call AI voice guidance), adopted by 179+ Japanese municipalities including Fukuoka, Sapporo, Kyoto, and Oita; and Graffer AI Solution, a generative-AI adoption offering for enterprises (consulting, training, and the Graffer AI Studio product). Graffer also runs the citizen-facing お悩みハンドブック benefits-discovery service and the Govtech Trends media. In 2023 it entered a capital and business alliance with Change Holdings. Surfaced as a 500 Global portfolio company; no public developer API is currently published.

Graffer is profiled on the APIs.io network. Tagged areas include Company, GovTech, Government, Artificial Intelligence, and Generative AI.

Graffer’s developer surface includes engineering blog, support, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

15.8/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

CompanyGovTechGovernmentArtificial IntelligenceGenerative AIDigital GovernmentJapanSoftware-as-a-Service

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 15.8/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 6.3 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 5.3 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector 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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/graffer: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 3

Authentication, authorization, and security posture

Compliance

Compliance

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

Website

Website

About

About

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Company

Company

Source (apis.yml)

aid: graffer
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/graffer.png
name: Graffer
description: 'Graffer, Inc. (株式会社グラファー) is a Tokyo-based GovTech and generative-AI company founded in 2017 whose mission is
  to change behavior and society through the power of products. It operates two pillars: the Graffer Platform, a suite of
  digital-government services for municipalities and national agencies (Smart Application for online applications, Procedure
  Guide, Window Reservation, and Graffer Call AI voice guidance), adopted by 179+ Japanese municipalities including Fukuoka,
  Sapporo, Kyoto, and Oita; and Graffer AI Solution, a generative-AI adoption offering for enterprises (consulting, training,
  and the Graffer AI Studio product). Graffer also runs the citizen-facing お悩みハンドブック benefits-discovery service and the Govtech
  Trends media. In 2023 it entered a capital and business alliance with Change Holdings. Surfaced as a 500 Global portfolio
  company; no public developer API is currently published.'
url: https://raw.githubusercontent.com/api-evangelist/graffer/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- GovTech
- Government
- Artificial Intelligence
- Generative AI
- Digital Government
- Japan
- Software-as-a-Service
tags_raw:
- Company
- GovTech
- Government
- Artificial Intelligence
- Generative AI
- Digital Government
- Japan
- SaaS
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://graffer.jp
- type: About
  url: https://graffer.jp/about
- type: Company
  url: https://graffer.jp/company
- type: Blog
  url: https://graffer-aistudio.jp/blog
- type: Support
  url: https://form.run/@graffer-contact
- type: PrivacyPolicy
  url: https://graffer.jp/legal/privacy-policy
- type: TermsOfService
  url: https://graffer.jp/legal/account-policy
- type: Compliance
  url: https://graffer.jp/legal/isms-policy
- type: TrustCenter
  url: security/graffer-trust-center.yml
- type: DomainSecurity
  url: security/graffer-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Graffer

Kin Score

Security Posture 2

Graffer Domain Security

Graffer Trust Center

Resources