Kigen

Kigen is a security-focused eSIM and iSIM technology company, spun out of Arm in 2020 and headquartered in Cambridge, UK, backed by SoftBank. Kigen builds GSMA-compliant SIM operating systems, integrated SIM (iSIM) and embedded SIM (eSIM) technology, remote SIM provisioning (RSP), and In-Factory Profile Provisioning (IFPP), together with lifecycle and over-the-air (OTA) management for connected and IoT devices. Its eUICC security, SIM OS, and provisioning platform serve mobile network operators, device manufacturers, OEMs and ODMs, IoT service providers, and enterprises building connected products, enabling secure cellular connectivity at scale across the device lifecycle. This profile was surfaced as a portfolio company of SoftBank Vision Fund and enriched by the API Evangelist pipeline from Kigen's public web surface.

Kigen is profiled on the APIs.io network. Tagged areas include Company, Frontier Tech, eSIM, iSIM, and SIM OS.

Kigen’s developer surface includes engineering blog, support, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

9.4/100 minimal ▬ flat Agent 7/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyFrontier TecheSIMiSIMSIM OSRemote SIM ProvisioningIoT ConnectivityeUICC SecurityGSMACellular Connectivity

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 9.4/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 1.4 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 7/100 · 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 4 / 4

Consent & Bot Identity 3 / 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/kigen: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

SecurityTxt

SecurityTxt

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 3

The organization behind the API

Website

Website

About

About

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Products

Products

Resources

Resources

Source (apis.yml)

aid: kigen
name: Kigen
description: Kigen is a security-focused eSIM and iSIM technology company, spun out of Arm in 2020 and headquartered in Cambridge,
  UK, backed by SoftBank. Kigen builds GSMA-compliant SIM operating systems, integrated SIM (iSIM) and embedded SIM (eSIM)
  technology, remote SIM provisioning (RSP), and In-Factory Profile Provisioning (IFPP), together with lifecycle and over-the-air
  (OTA) management for connected and IoT devices. Its eUICC security, SIM OS, and provisioning platform serve mobile network
  operators, device manufacturers, OEMs and ODMs, IoT service providers, and enterprises building connected products, enabling
  secure cellular connectivity at scale across the device lifecycle. This profile was surfaced as a portfolio company of SoftBank
  Vision Fund and enriched by the API Evangelist pipeline from Kigen's public web surface.
url: https://raw.githubusercontent.com/api-evangelist/kigen/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- softbank-vision-fund
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
image: https://kigen.com/wp-content/uploads/2021/03/kigen-logo.png
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Frontier Tech
- eSIM
- iSIM
- SIM OS
- Remote SIM Provisioning
- IoT Connectivity
- eUICC Security
- GSMA
- Cellular Connectivity
apis: []
common:
- type: VulnerabilityDisclosure
  url: security/kigen-vulnerability-disclosure.yml
- type: Security
  url: well-known/kigen-security.txt
- type: Website
  url: https://kigen.com/
- type: About
  url: https://kigen.com/about/
- type: Products
  url: https://kigen.com/products/
- type: Blog
  url: https://kigen.com/blog/
- type: Resources
  url: https://kigen.com/resources/
- type: Support
  url: https://kigen.com/contact/
- type: SecurityTxt
  url: well-known/kigen-security.txt
- type: WellKnown
  url: well-known/kigen-well-known.yml
- type: LLMsTxt
  url: llms/kigen-llms.txt
- type: DomainSecurity
  url: security/kigen-domain-security.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence