--- title: "KYE Protocol™ — Ecosystem | Connector Hub™ · Connector Profiles™ · App Store · Plugin Marketplace™" description: "The KYE Protocol™ ecosystem: Connector Hub™ integrates, Connector Profiles™ make authority portable across sectors, App Store productises, Plugin…" url: https://kyeprotocol.com/ecosystem/ lang: en source: "KYE Protocol" --- > The KYE Protocol™ ecosystem: Connector Hub™ integrates, Connector Profiles™ make authority portable across sectors, App Store productises, Plugin… KYE Protocol™ ecosystem # 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. [**KYE™ Connector Profiles™** _Profiles define the rules._ 11 domain profiles — Payment, Commerce, Open Finance, Agent Runtime, Compliance Evidence, Pension, Health, Security & SIEM, Insurance, Utilities, Legal — each binding a family of connectors to a shared authority model + event family + evidence shape + conformance suite. _view profiles →_](https://kyeprotocol.com/connector-profiles/) [**KYE™ Connector Hub™** _Connectors integrate KYE™._ six connector families (IPG · MPG · checkout · MCP · IAM · SIEM · GRC · KYC/KYB/KYA …), one canonical `kye.connector_manifest.v1` manifest schema, 52 reference connectors searchable in the explorer. _view connectors →_](https://kyeprotocol.com/connectors/) [**KYE™ App Store** _Apps productise KYE™._ 21 productised apps grouped by domain — KYE™ Payment Authority Gateway™, KYE™ Checkout Guard™, KYE™ Open Finance Authority Gateway™, KYE™ Evidence Pack Viewer™, KYE™ Contract Authority Gateway™, and 16 more. _view apps →_](https://kyeprotocol.com/apps/) [**KYE™ Plugin Marketplace™** _Plugins extend KYE™._ 9 plugin categories (MCP tools, webhook verifiers, policy packs, evidence exporters, conformance fixtures, dashboard widgets, sandbox flows, approval workflows, SDK extensions) with 18 reference plugins. _browse plugins →_](https://kyeprotocol.com/plugins/) 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. L1L1 **KYE™ Core Protocol™** — vocabulary, schemas, runtime, decision codes, audit chain. The base contract. 2. L2L2 **KYE™ Profiles** — domain rules: `kye.payments.v1`, `kye.healthcare.v1`, `kye.federation.v1`, etc. (58 v1.0 normative) 3. L3L3 **KYE™ Connector Profiles™** — integration-category rules. Each profile binds a family of connectors to a shared authority model + event family + evidence shape + conformance suite. 4. L4L4 **Individual connectors** — specific systems (Stripe, Shopify, OpenBankProject, NHS API, Splunk, …) under their parent profile. 5. L5L5 **Apps · Plugins · Widgets** — KYE™ App Store productises · KYE™ Plugin Marketplace™ extends. Five-level hierarchy. Core Protocol → Payments Profile → Payments Connector Profile → four Connectors → App → Plugin. Pick the surface that matches the job ## What are you trying to do? - A **I want to understand the rules for my domain.** → [KYE™ Connector Profiles™](https://kyeprotocol.com/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. - B **I want to integrate KYE™ with a specific system I already run.** → [KYE™ Connector Hub™](https://kyeprotocol.com/connectors/). Search the explorer by name / type / risk envelope. Pick a connector; ship the manifest; sign + submit. - C **I want a productised authority surface I can adopt this quarter.** → [KYE™ App Store](https://kyeprotocol.com/apps/). 21 apps across payments, commerce, open finance, sandbox, sector apps, agentic / MCP, audit, certification, legal. - D **I want to add a small focused module to my existing KYE™ stack.** → [KYE™ Plugin Marketplace™](https://kyeprotocol.com/plugins/). MCP tools, webhook verifiers, policy packs, evidence exporters, dashboard widgets — ~half a day of work each. - E **I want to write code against the runtime.** → [Build with KYE™](https://kyeprotocol.com/build/) + [Quickstart](https://kyeprotocol.com/developers/). Three SDKs (TypeScript / Python / Go), 135 conformance fixtures, reference Gateway, KYE™ MCP Server. - F **I want to see the runtime semantics live before I write anything.** → [Interactive Widgets](https://kyeprotocol.com/widgets/catalogue/). 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](https://kyeprotocol.com/connectors/). 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. | Surface | What you get | | --- | --- | | Profiles | Every `kye.connector_profile.v1` manifest, supported-connector list, conformance suite, dictionaries. | | Connectors | Every `kye.connector_manifest.v1` beneath a profile · sample IPG / checkout / MCP / SIEM connectors · SDK adapters · local test harness. | | Apps | Reference architectures · sample `kye.app_manifest.v1` · SDK examples per app. | | Plugins | `kye.plugin_manifest.v1` · sample plugins · permissions dictionary · conformance fixtures. | | Runtime | KYE™ Reference Gateway™: PEP middleware · embedded ePDP · conformance runner. | Adjacent reading ## Where to go next. [KYE™ Connector Profiles™ →](https://kyeprotocol.com/connector-profiles/) [KYE™ Connector Hub™](https://kyeprotocol.com/connectors/) [KYE™ App Store](https://kyeprotocol.com/apps/) [KYE™ Plugin Marketplace™](https://kyeprotocol.com/plugins/) [Interactive Widgets](https://kyeprotocol.com/widgets/catalogue/) ## Ready to see your AI agents flagged? Start in shadow mode. We’ll deliver your first Evidence Pack™ in 4–8 weeks. [Apply for pilot →](https://kyeprotocol.com/pilot-apply/) [Try the sandbox →](https://kyeprotocol.com/sandbox/demos/) Canonical KYE™ surfaces referenced on this page: [Authority Graph™](https://kyeprotocol.com/authority-lifecycle/) · [Evidence Pack™](https://kyeprotocol.com/evidence-pack/) · [KYE™ MCP Server](https://kyeprotocol.com/mcp/) · [KYE Protocol™](https://kyeprotocol.com/).