Rakuten Mobile

Rakuten Mobile is the Japanese mobile network operator (MNO) of Rakuten Group, headquartered in Setagaya, Tokyo, and Japan's fourth nationwide carrier alongside NTT Docomo, KDDI, and SoftBank. Commercially launched in April 2020 and surpassing 10 million subscribers in December 2025, Rakuten Mobile built and operates the world's first fully cloud-native, end-to-end virtualized mobile network on Open RAN, with 4G population coverage of 99.9% and expanding 5G plus 700 MHz Platinum Band rollout. The same engineering effort spun out into Rakuten Symphony, a B2B business that productizes the Rakuten Mobile playbook as the Symworld platform — a cloud-native operating platform for telcos covering Open RAN (CU/DU/RIC, Symware distributed unit appliance), Symworld Cloud (Kubernetes-based hyperconverged telco cloud / CNP), OSS/BSS, site management, and a marketplace of pre-integrated cloud-native network functions from 50+ vendor partners. Symphony also offers Rakuten CPaaS (carrier-grade SMS, Confirm/OTP, and Short URL APIs running on the Rakuten Mobile network with JWT-authenticated REST endpoints at api.cpaas.symphony.rakuten.net) and Rakuten Communications Platform (RCP) for enterprise private 5G. Public, developer-accessible APIs are concentrated in the CPaaS suite; the Symworld platform APIs themselves are TM Forum-aligned but exposed under commercial engagement rather than a public developer signup.

Rakuten Mobile is listed with 3 APIs on the APIs.io network. Tagged areas include Telecommunications, Mobile Network Operator, Carrier, 5G, and 4G LTE.

Rakuten Mobile’s developer surface includes developer portal, engineering blog, YouTube channel, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

11.3/100 emerging ▬ 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 →

3 APIs

Telecommunications Mobile Network Operator Carrier 5G4G LTEOpen RAN Cloud-NativeSymworldSymphonyCPaaS SMS OTP Short URL Messaging OSS BSSRICKubernetes Edge Private 5G Japan

Kin Score

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

Composite quality — 11.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 0.0 / 17

Operational Transparency 1.2 / 11

Contract Governance 0.0 / 10

Discoverability 6.1 / 9

Regulatory Posture 1.5 / 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 21.4 — up to +15.7 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/rakuten-mobile/apis.yml: open an issue on github.com/api-evangelist/rakuten-mobile 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	17.2 (thin)	-	-
Japan ISMAP Cloud Security Assessments (TISAX unreadable)	standard	17.2 (thin)	-	-

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.

APIs 3

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

Rakuten CPaaS SMS / Messaging API

Carrier-grade SMS API for sending and receiving A2P and P2A SMS at scale on the Rakuten Mobile network, with delivery receipts pushed to caller-configured webhooks. UTF-8 encode...

Rakuten CPaaS Confirm (OTP) API

One-time PIN delivery and verification API for two-factor authentication and transaction confirmation, with SMS and Voice channel support, lifecycle operations for request / val...

Rakuten CPaaS Short URL API

Link shortening and analytics API for CPaaS campaigns. Supports create / retrieve / update / list / delete operations on short URLs, with JWT bearer authentication, UTC timestam...

Security Posture 2

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

Rakuten Mobile Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Rakuten Mobile Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Documentation 1

Reference material describing how the API behaves

DeveloperDocs

DeveloperDocs

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Company 9

The organization behind the API

Website

Website

Newsroom

Blog

GroupNewsroom

LinkedIn

LinkedInSymphony

LinkedInSymphony

Twitter

Twitter

TwitterSymphony

TwitterSymphony

Scroll for all 9

Other 9

Properties that don't map to a standard resource type

Symphony

SymworldPlatform

OpenRAN

Cloud

OSS

SiteManagement

CPaaS

Symworld

ParentCompany

Scroll for all 9

Source (apis.yml)

aid: rakuten-mobile
name: Rakuten Mobile
description: Rakuten Mobile is the Japanese mobile network operator (MNO) of Rakuten Group, headquartered in Setagaya, Tokyo,
  and Japan's fourth nationwide carrier alongside NTT Docomo, KDDI, and SoftBank. Commercially launched in April 2020 and
  surpassing 10 million subscribers in December 2025, Rakuten Mobile built and operates the world's first fully cloud-native,
  end-to-end virtualized mobile network on Open RAN, with 4G population coverage of 99.9% and expanding 5G plus 700 MHz Platinum
  Band rollout. The same engineering effort spun out into Rakuten Symphony, a B2B business that productizes the Rakuten Mobile
  playbook as the Symworld platform — a cloud-native operating platform for telcos covering Open RAN (CU/DU/RIC, Symware distributed
  unit appliance), Symworld Cloud (Kubernetes-based hyperconverged telco cloud / CNP), OSS/BSS, site management, and a marketplace
  of pre-integrated cloud-native network functions from 50+ vendor partners. Symphony also offers Rakuten CPaaS (carrier-grade
  SMS, Confirm/OTP, and Short URL APIs running on the Rakuten Mobile network with JWT-authenticated REST endpoints at api.cpaas.symphony.rakuten.net)
  and Rakuten Communications Platform (RCP) for enterprise private 5G. Public, developer-accessible APIs are concentrated
  in the CPaaS suite; the Symworld platform APIs themselves are TM Forum-aligned but exposed under commercial engagement rather
  than a public developer signup.
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/rakuten-mobile.png
tags:
- Telecommunications
- Mobile Network Operator
- Carrier
- 5G
- 4G LTE
- Open RAN
- Cloud-Native
- Symworld
- Symphony
- CPaaS
- SMS
- OTP
- Short URL
- Messaging
- OSS
- BSS
- RIC
- Kubernetes
- Edge
- Private 5G
- Japan
tags_raw:
- Telecommunications
- Mobile Network Operator
- Carrier
- 5G
- 4G LTE
- Open RAN
- Cloud Native
- Symworld
- Symphony
- CPaaS
- SMS
- OTP
- Short URL
- Messaging
- OSS
- BSS
- RIC
- Kubernetes
- Edge
- Private 5G
- Japan
url: https://raw.githubusercontent.com/api-evangelist/rakuten-mobile/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.23'
apis:
- aid: rakuten-mobile:rakuten-cpaas-sms-api
  name: Rakuten CPaaS SMS / Messaging API
  tags:
  - SMS
  - Messaging
  - CPaaS
  - A2P
  - P2A
  - Delivery Receipts
  humanURL: https://docs.cpaas.symphony.rakuten.net/getting-started/sms-api/
  baseURL: https://api.cpaas.symphony.rakuten.net/sms/v1
  description: Carrier-grade SMS API for sending and receiving A2P and P2A SMS at scale on the Rakuten Mobile network, with
    delivery receipts pushed to caller-configured webhooks. UTF-8 encoded, JWT-authenticated REST endpoints (HTTP variant)
    alongside an SMPP variant for bulk MNO interconnect. Sender addresses must be pre-registered with operators. Used by enterprises
    for OTP delivery, transactional alerts, and marketing campaigns through the Rakuten CPaaS dashboard.
  properties:
  - url: https://docs.cpaas.symphony.rakuten.net/getting-started/sms-api/
    type: Documentation
  - url: https://docs.cpaas.symphony.rakuten.net/getting-started/sms-api/http-api/sending_sms
    type: Documentation
  - url: https://symphony.rakuten.com/cpaas/en/sms
    type: ProductPage
  - url: https://symphony.rakuten.com/cpaas/en/sms/feature
    type: Features
  - url: https://symphony.rakuten.com/cpaas/en/sms/faq-en/what-is-the-connection-method-to-the-api
    type: FAQ
- aid: rakuten-mobile:rakuten-cpaas-confirm-api
  name: Rakuten CPaaS Confirm (OTP) API
  tags:
  - OTP
  - 2FA
  - Authentication
  - Confirm
  - CPaaS
  - Voice
  humanURL: https://docs.cpaas.symphony.rakuten.net/getting-started/confirm-api/
  baseURL: https://api.cpaas.symphony.rakuten.net
  description: One-time PIN delivery and verification API for two-factor authentication and transaction confirmation, with
    SMS and Voice channel support, lifecycle operations for request / validate / resend / cancel, JWT bearer authentication,
    and standard JSON payloads over HTTPS. Built for fraud-sensitive enterprise flows requiring carrier-grade reach and audit
    trails.
  properties:
  - url: https://docs.cpaas.symphony.rakuten.net/getting-started/confirm-api/
    type: Documentation
  - url: https://symphony.rakuten.com/cpaas/en
    type: ProductPage
- aid: rakuten-mobile:rakuten-cpaas-shorturl-api
  name: Rakuten CPaaS Short URL API
  tags:
  - Short URL
  - Tracking
  - Campaigns
  - CPaaS
  humanURL: https://docs.cpaas.symphony.rakuten.net/getting-started/shorturl-api/
  baseURL: https://api.cpaas.symphony.rakuten.net
  description: Link shortening and analytics API for CPaaS campaigns. Supports create / retrieve / update / list / delete
    operations on short URLs, with JWT bearer authentication, UTC timestamps, JSON over HTTPS, and click-tracking telemetry
    that feeds the CPaaS dashboard's campaign analytics views.
  properties:
  - url: https://docs.cpaas.symphony.rakuten.net/getting-started/shorturl-api/
    type: Documentation
  - url: https://symphony.rakuten.com/cpaas/en
    type: ProductPage
common:
- type: VulnerabilityDisclosure
  url: security/rakuten-mobile-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/rakuten-mobile-domain-security.yml
- type: Website
  url: https://network.mobile.rakuten.co.jp/
- type: Website
  url: https://corp.mobile.rakuten.co.jp/
- type: Symphony
  url: https://symphony.rakuten.com/
- type: SymworldPlatform
  url: https://symphony.rakuten.com/symworld/a-new-kind-of-operating-platform
- type: OpenRAN
  url: https://symphony.rakuten.com/open-ran
- type: Cloud
  url: https://symphony.rakuten.com/cloud
- type: OSS
  url: https://symphony.rakuten.com/oss
- type: SiteManagement
  url: https://symphony.rakuten.com/site-management
- type: CPaaS
  url: https://symphony.rakuten.com/cpaas/en
- type: DeveloperDocs
  url: https://docs.cpaas.symphony.rakuten.net/
- type: Portal
  url: https://portal.cpaas.symphony.rakuten.net/
- type: Symworld
  url: https://symworld.rakuten.com/
- type: Newsroom
  url: https://symphony.rakuten.com/newsroom
- type: Blog
  url: https://symphony.rakuten.com/blog
- type: ParentCompany
  url: https://global.rakuten.com/corp/
- type: GroupNewsroom
  url: https://global.rakuten.com/corp/news/
- type: LinkedIn
  url: https://www.linkedin.com/company/rakuten-mobile/
- type: LinkedInSymphony
  url: https://www.linkedin.com/company/rakuten-symphony/
- type: YouTube
  url: https://www.youtube.com/@RakutenMobile
- type: Twitter
  url: https://twitter.com/RakutenMobile_R
- type: TwitterSymphony
  url: https://twitter.com/RakutenSymphony
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Rakuten Mobile API — frequently asked questions

Does Rakuten Mobile have an API?

Yes. APIs.io lists 3 APIs from Rakuten Mobile, including Rakuten CPaaS SMS / Messaging API, Rakuten CPaaS Confirm (OTP) API and Rakuten CPaaS Short URL API.

Is the Rakuten Mobile API ready for AI agents?

Rakuten Mobile has a Kin Score of 11.3 out of 100 (emerging) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-06.

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