---
title: "KYE Protocol™ for Japan — runtime authority for sovereign AI (APPI · FSA AI · PMDA SaMD)"
description: "Runtime authority and signed evidence for Japanese AI — bijection-mapped to the APPI (PPC), the FSA's AI / model-governance expectations and the PMDA Software-as-a-Medical-Device pathway. Japan-sovereign deployment, customer-held keys, replayable from publisher JWKS alone."
url: https://kyeprotocol.com/sovereign-ai/japan/
lang: en
source: "KYE Protocol"
---

> Runtime authority and signed evidence for Japanese AI — bijection-mapped to the APPI (PPC), the FSA's AI / model-governance expectations and the PMDA Software-as-a-Medical-Device pathway. Japan-sovereign deployment, customer-held keys, replayable from publisher JWKS alone.

Japan

# Runtime authority for Japanese sovereign AI.

When the PPC asks how personal information was handled by an automated system under the APPI, when the FSA asks who was accountable for an AI-driven financial decision and how it was reached, when the PMDA asks for the change-control and post-market evidence behind AI-enabled medical-device software — KYE Protocol™ answers from a record sealed at the moment of action. Replayable from the publishing tenant's JWKS alone. No vendor dependency in the audit path.

[Apply for a Japanese pilot](https://kyeprotocol.com/pilot-apply/) [Coverage maps](https://kyeprotocol.com/compliance/coverage/)

Japanese frameworks mapped to KYE™ ™

## Per-requirement bijection — not a slide deck.

[APPI — Act on the Protection of Personal Information Japan's federal data-protection law, supervised by the Personal Information Protection Commission (PPC). Purpose-of-use limitation maps to Purpose Permission™; security control measures to Authority Resolution™ + the Data Classification Engine; cross-border transfer and disclosure/access rights to the Cross-Border Evidence agent, Decision Map™ and Replay-Proof™. Each obligation is a per-requirement bijection row.](https://kyeprotocol.com/compliance/appi/) [FSA AI / model-governance expectations The Financial Services Agency's AI governance and model-risk expectations for financial institutions. Accountability maps to Purpose Permission™; model risk to the Risk Engine, Conformance Runner and Drift Detector; human oversight to GovernedUI™; explainability to the Decision Map™ and Evidence Pack™. Each expectation is a per-requirement bijection row.](https://kyeprotocol.com/compliance/fsa-guidelines-ai/) [PMDA Software-as-a-Medical-Device pathway The PMDA's SaMD review pathway under the PMD Act, including the two-step (DASH) approval scheme. Quality-management-system evidence and clinical-evaluation provenance map to the WORM audit + Evidence Pack™; change control to the Conformance Runner + Drift Detector; human oversight to GovernedUI™. Device classification and marketing approval remain the manufacturer's submission.](https://kyeprotocol.com/compliance/pmda-samd/)

Japan-sovereign deployment

## Japanese data, Japanese keys, Japanese control.

- **Data residency** — deploy to Japanese-region edge runtime resources; per-tenant configurable; structured datastore + object store pinned to Japan.
- **Customer KMS** — signing keys live in the customer's HSM or sovereign-cloud KMS; KYE™ never has access to the private key material.
- **Open verifier** — the PPC, the FSA, the PMDA and the customer's own auditors can replay an Evidence Pack™ using only the publisher's JWKS. No vendor dependency in the audit path.
- **Apache 2.0 schemas + vocabulary** — the contracts the customer relies on are open. The patent-track runtime construction is paid; the proof formats are not.

Japanese pilot · 6 weeks

## KYE™ Japanese Readiness Pilot™.

Japanese banks, insurers, asset managers, medical-device manufacturers and AI-deploying enterprises: a 6-week shadow-mode engagement producing APPI personal-data handling evidence per assertion, FSA AI-governance and model-risk coverage, PMDA SaMD change-control and post-market evidence where applicable, signed Evidence Packs™ per decision, and a regulator-ready executive summary with a residual-risk register.

[Apply for a Japanese pilot](https://kyeprotocol.com/pilot-apply/)

**Independent — no government affiliation.** KYE Protocol™ is an independent protocol and is **not affiliated with, endorsed by, or part of** any government, regulator, or official “Sovereign AI” programme. References to regulators and frameworks describe the requirements KYE™ helps you evidence — not any official relationship.

Canonical KYE™ surfaces referenced on this page: [Evidence Pack™](https://kyeprotocol.com/evidence-pack/) · [KYE Protocol™](https://kyeprotocol.com/) · [Purpose Permission](https://kyeprotocol.com/glossary/).