---
title: "KYE Protocol™ — the platform · 8 modules, runtime authority + signed evidence"
description: "KYE Protocol™ in 8 buyer-readable modules: Entity Registry, Authority Gateway, Purpose & Scope, Decision Maps, Evidence Packs, Replay Proofs, Data Purpose Binding, Edge Governance. The runtime authority + evidence platform AI governance dashboards need underneath them."
url: https://kyeprotocol.com/platform/
lang: en
source: "KYE Protocol"
---

> KYE Protocol™ in 8 buyer-readable modules: Entity Registry, Authority Gateway, Purpose & Scope, Decision Maps, Evidence Packs, Replay Proofs, Data Purpose Binding, Edge Governance. The runtime authority + evidence platform AI governance dashboards need underneath them.

The platform · 8 modules

# Runtime authority + signed evidence, in eight modules.

KYE Protocol™ has depth. This page is the buyer-readable view: the eight modules a procurement team needs to understand before deciding whether KYE™ belongs underneath their AI governance program. Each module is a shipped surface, not a roadmap promise.

[Start a governed pilot](https://kyeprotocol.com/poc/) [Architecture overview](https://kyeprotocol.com/architecture/)

## The eight modules.

Each module is a shipped surface you can open today; together they give your procurement team the full authority chain, from registry to signed report.

### Entity & Principal Registry

Every actor — human, agent, sub-processor, federated principal — gets a KYE™ URN. Lifecycle, classification, trust-domain. The evidence layer every other module binds to. [Read more →](https://kyeprotocol.com/state-registry/)

### Authority Gateway™

The runtime decision point. Every delegated action is evaluated against the bound authority chain at the moment it's proposed — before it crosses the commit boundary. [Read more →](https://kyeprotocol.com/decision-engine/)

### Purpose Permission™

Every action cites a declared purpose. Every grant carries a bounded scope. Every decision is admissible against those bindings — or it doesn't reach commit. [Read more →](https://kyeprotocol.com/action-admissibility/)

### Decision Map™

For every runtime decision: a signed structural record of inputs, rules consulted, signals fused, verdict, and obligations. The contemporaneous answer to "what did the AI decide and why".

### Evidence Pack™

The canonical artefact a regulator, dispute panel or third-party auditor consumes. Replayable from the publisher's JWKS alone — no vendor dependency in the audit path. [Read more →](https://kyeprotocol.com/evidence-pack/)

### Replay Proof™

Banking-grade replay: anyone with the publisher's JWKS can re-derive the decision offline. No vendor server in the verification path. The construction is proprietary.

### Data Purpose Binding™

What data an agent touched, why it touched it, whether the purpose was valid, what evidence proves it. The KYE™ Data Governance Pack™ ships this end-to-end.

### Edge Governance™

Compiled authority bundles deployable to the edge. The Compiled Authority Bundle™ + Edge Arbiter™ + Safety Floor™ + Offline Evidence Log™ ship governance into network-partitioned, regulated, or sovereign deployments.

Underneath the 8 modules

## Depth is the moat. Hidden, not removed.

Behind the eight-module view, KYE Protocol™ ships 249 frameworks tracked in the live [regulatory-coverage register](https://kyeprotocol.com/regulatory-coverage/), 10 canonical profiles, 70 rule packs, 61 sector packs, 501 dictionaries, 591 OpenAPI operations across 87+ runtime endpoints, 1165 JSON Schemas with 1449 validated examples, three SDKs (TypeScript / Python / Go), 135 conformance fixtures, a reference Gateway, embedded PDP, PEP middleware, and an MCP server. Apache 2.0 contracts; paid runtime. Banking-grade procurement teams open these on first touch.

[Trust Center](https://kyeprotocol.com/trust-center/) [Coverage maps](https://kyeprotocol.com/compliance/coverage/) [Sovereign AI](https://kyeprotocol.com/sovereign-ai/) [Apply for pilot](https://kyeprotocol.com/pilot-apply/)

Canonical KYE™ surfaces referenced on this page: [KYE™ Edge Governance™](https://kyeprotocol.com/glossary/) · [KYE™ MCP Server](https://kyeprotocol.com/mcp/) · [KYE Protocol™](https://kyeprotocol.com/) · [Purpose Permission](https://kyeprotocol.com/glossary/).