KDDI

KDDI Corporation is a Japanese multinational telecommunications operator headquartered in Tokyo, providing mobile, fixed-line, broadband, and enterprise ICT services. KDDI markets its consumer mobile services under the au brand, alongside UQ mobile and povo, and serves enterprise customers globally through KDDI Global and KDDI America. The company operates the KDDI Open API for Developers portal exposing inquiry-gated product APIs including the au PAY Mini App platform, an XR/MEC low-latency application API, a PPM consent management API, and an au mobile Identification Support Service for KYC/identity verification. KDDI also runs the au OPEN DEVICE DEVELOPER SITE for cellular module device certification, and a KDDI Cloud Platform Service knowledge site with developer API references for cloud infrastructure. In 2025 KDDI became an equity partner in Aduna, the GSMA/Ericsson-backed network API venture aggregating CAMARA-aligned carrier APIs (Number Verify, SIM Swap, Quality on Demand, Device Location) across global operators. Public OpenAPI specifications are not openly published; API access is provided through contact/inquiry workflows after partner onboarding.

KDDI is profiled on the APIs.io network. Tagged areas include Telecommunications, Mobile Network Operator, Carrier, Japan, and AU.

KDDI’s developer surface includes product news, GitHub presence, YouTube channel, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

5.2/100 minimal ▬ flat Agent 0/100 human only Front door AI 1/6 silent Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs

Telecommunications Mobile Network Operator Carrier JapanAUUQ MobilepovoNetwork APIs CAMARA Aduna Identity Verification Consent ManagementMini Appau PAYExtended Reality MEC Edge Computing 5G Cloud Platform IoT

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 5.2/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 1.6 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.6 / 11

Contract Governance 0.0 / 10

Discoverability 4.2 / 9

Regulatory Posture 0.8 / 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

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 Telecommunications 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 9.5 — up to +18.1 composite points

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.

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/kddi/apis.yml: open an issue on github.com/api-evangelist/kddi 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Network Edge (CDN, networking, peering, edge compute)	standard	61.8	-	-
XR & Graphics (XR, 3D, GPU graphics)	standard	61.8	-	-
Biometrics Testing (biometric recognition vendors, identity verification depth)	standard	61.8	-	-
Mobile SDK Publishers (Play SDK Index, CocoaPods, ADA certification)	standard	61.8	-	-
Japan FSA Registered Fintech (crypto exchanges, stablecoin intermediaries, funds transfer, bank-API agents, prepaid)	standard	61.8	-	-
Vulnerability Disclosure (CVE Numbering Authorities, FIRST member teams; CISA KEV exposure)	standard	61.8	-	-
Japan ISMAP Cloud Security Assessments (TISAX unreadable)	standard	61.8	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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.

CAMARA

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Security Posture 1

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

Kddi Domain Security

TLSv1.2 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

CloudPlatformDeveloperGuide

CloudPlatformDeveloperGuide

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Company 5

The organization behind the API

Website

Website

News

News

InvestorRelations

InvestorRelations

Careers

Careers

LinkedIn

Other 10

Properties that don't map to a standard resource type

CorporateJapan

CorporateJapan

OpenDeviceDeveloperSite

OpenDeviceDeveloperSite

KDDIGlobal

KDDIAmerica

povo

UQMobile

Sustainability

Aduna

CAMARA

Scroll for all 10

Source (apis.yml)

aid: kddi
name: KDDI
description: KDDI Corporation is a Japanese multinational telecommunications operator headquartered in Tokyo, providing mobile,
  fixed-line, broadband, and enterprise ICT services. KDDI markets its consumer mobile services under the au brand, alongside
  UQ mobile and povo, and serves enterprise customers globally through KDDI Global and KDDI America. The company operates
  the KDDI Open API for Developers portal exposing inquiry-gated product APIs including the au PAY Mini App platform, an XR/MEC
  low-latency application API, a PPM consent management API, and an au mobile Identification Support Service for KYC/identity
  verification. KDDI also runs the au OPEN DEVICE DEVELOPER SITE for cellular module device certification, and a KDDI Cloud
  Platform Service knowledge site with developer API references for cloud infrastructure. In 2025 KDDI became an equity partner
  in Aduna, the GSMA/Ericsson-backed network API venture aggregating CAMARA-aligned carrier APIs (Number Verify, SIM Swap,
  Quality on Demand, Device Location) across global operators. Public OpenAPI specifications are not openly published; API
  access is provided through contact/inquiry workflows after partner onboarding.
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kddi.png
x-docs-platform: redoc
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
x-docs-hosting: aws-cloudfront
tags:
- Telecommunications
- Mobile Network Operator
- Carrier
- Japan
- AU
- UQ Mobile
- povo
- Network APIs
- CAMARA
- Aduna
- Identity Verification
- Consent Management
- Mini App
- au PAY
- Extended Reality
- MEC
- Edge Computing
- 5G
- Cloud Platform
- IoT
tags_raw:
- Telecommunications
- Mobile Network Operator
- Carrier
- Japan
- au
- UQ Mobile
- povo
- Network API
- CAMARA
- Aduna
- Identity Verification
- Consent Management
- Mini App
- au PAY
- XR
- MEC
- Edge Computing
- 5G
- Cloud Platform
- IoT
url: https://raw.githubusercontent.com/api-evangelist/kddi/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.23'
apis: []
common:
- type: DomainSecurity
  url: security/kddi-domain-security.yml
- type: Website
  url: https://www.kddi.com/english/
- type: CorporateJapan
  url: https://www.kddi.com/
- type: DeveloperPortal
  url: https://developers.apis.kddi.com/
- type: OpenDeviceDeveloperSite
  url: https://open-dev.kddi.com/english/overview
- type: CloudPlatformDeveloperGuide
  url: https://doc.cloud-platform.kddi.ne.jp/developer/
- type: KDDIGlobal
  url: https://global.kddi.com/
- type: KDDIAmerica
  url: https://us.kddi.com/
- type: au
  url: https://www.au.com/
- type: povo
  url: https://povo.jp/
- type: UQMobile
  url: https://www.uqwimax.jp/
- type: News
  url: https://news.kddi.com/kddi/corporate/english/newsrelease/
- type: InvestorRelations
  url: https://www.kddi.com/english/corporate/ir/
- type: Sustainability
  url: https://www.kddi.com/english/corporate/csr/
- type: Careers
  url: https://www.kddi.com/english/recruit/
- type: GitHub
  url: https://github.com/KDDI
- type: Aduna
  url: https://adunaglobal.com/
- type: CAMARA
  url: https://camaraproject.org/
- type: LinkedIn
  url: https://www.linkedin.com/company/kddi-corporation
- type: YouTube
  url: https://www.youtube.com/@KDDIofficialchannel
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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