Graffer website screenshot

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
19.3/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyGovTechGovernmentArtificial IntelligenceGenerative AIDigital GovernmentJapanSaaS

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 19.3/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 7.4 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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 →

Security Posture 2

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

Graffer Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Graffer Trust Center

ISO 27001, ISO 27017, Privacy Mark

SECURITY

Resources

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)

apis.yml Raw ↑ 
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: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- 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