KYE Protocol ecosystem · one orientation, four surfaces

Profiles define. Connectors integrate. Apps productise. Plugins extend.

KYE Protocol ships four ecosystem surfaces. Each one solves a specific adoption problem. Pick the one that matches what you're trying to do; the right starter, schema, and SDK is one click away.

Four ecosystem surfaces

One sentence per surface.

Hierarchy

From Core Protocol to Plugin — one tree.

Five layers, each a clean contract over the layer below. The same authority object travels from spec to runtime to evidence.

  1. L1L1KYE Core Protocol — vocabulary, schemas, runtime, decision codes, audit chain. The base contract.
  2. L2L2KYE Profiles — domain rules: kye.payments.v1, kye.healthcare.v1, kye.federation.v1, etc. (58 v1.0 normative)
  3. L3L3KYE Connector Profiles — integration-category rules. Each profile binds a family of connectors to a shared authority model + event family + evidence shape + conformance suite.
  4. L4L4Individual connectors — specific systems (Stripe, Shopify, OpenBankProject, NHS API, Splunk, …) under their parent profile.
  5. L5L5Apps · Plugins · WidgetsKYE App Store productises · KYE Plugin Marketplace extends.
KYE Protocol hierarchy — Core → Profile → Connector Profile → Connectors → App → Plugin Five-level tree starting at KYE Core Protocol, branching into a Profile (kye.payments.v1), a Connector Profile (KYE Payments Profile), four sibling Connectors (IPG/MPG, Stripe, PayPal, Open-Banking PI), one App (KYE Payment Authority Gateway), and one Plugin (KYE Signal Verifier Plugin). L1 · CORE KYE Core Protocol™ vocabulary · schemas · audit chain L2 · PROFILE kye.payments.v1 KYE Profile L3 · CONNECTOR PROFILE KYE Payments Profile™ domain authority model L4 · CONNECTORS KYE IPG / MPG Connector™ KYE Stripe Connector™ KYE PayPal Connector™ KYE Open-Banking Payment-Initiation Connector™ L5 · APP KYE Payment Authority Gateway™ L5 · PLUGIN KYE Signal Verifier Plugin™
Five-level hierarchy. Core Protocol → kye.payments.v1 Profile → Payments Connector Profile → four Connectors → App → Plugin.
Pick the surface that matches the job

What are you trying to do?

  • AI want to understand the rules for my domain.KYE Connector Profiles. Pick the profile that fits (Payment, Commerce, Open Finance, Health, Pension, Agent Runtime, Compliance Evidence, Security & SIEM, Insurance, Utilities, Legal). Each profile lists the authority model, the events it carries, the conformance fixtures.
  • BI want to integrate KYE with a specific system I already run.KYE Connector Hub. Search the explorer by name / type / risk envelope. Pick a connector; ship the manifest; sign + submit.
  • CI want a productised authority surface I can adopt this quarter.KYE App Store. 21 apps across payments, commerce, open finance, sandbox, sector apps, agentic / MCP, audit, certification, legal.
  • DI want to add a small focused module to my existing KYE stack.KYE Plugin Marketplace. MCP tools, webhook verifiers, policy packs, evidence exporters, dashboard widgets — ~half a day of work each.
  • EI want to write code against the runtime.Build with KYE + Quickstart. Three SDKs (TypeScript / Python / Go), 126 conformance fixtures, reference Gateway, KYE MCP Server.
  • FI want to see the runtime semantics live before I write anything.Interactive Widgets. Five live widgets, no signup, no install — Choose-Your-Role router, Agent-Purchase Simulator, Decision Map Viewer, Blast Radius Map, Evidence Pack Viewer. The KYE Connector Hub explorer lives on connectors.html.
What ships today

Open contracts, ecosystem-wide.

Apache 2.0. Every contract below is implementable today — partners and developers integrate without depending on any hosted service.

SurfaceWhat you get
ProfilesEvery kye.connector_profile.v1 manifest, supported-connector list, conformance suite, dictionaries.
ConnectorsEvery kye.connector_manifest.v1 beneath a profile · sample IPG / checkout / MCP / SIEM connectors · SDK adapters · local test harness.
AppsReference architectures · sample kye.app_manifest.v1 · SDK examples per app.
Pluginskye.plugin_manifest.v1 · sample plugins · permissions dictionary · conformance fixtures.
RuntimeKYE Reference Gateway: PEP middleware · embedded ePDP · conformance runner.
Adjacent reading

Where to go next.

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