Multi-tenant by design
Row-level isolation with a tenant ID on every entity and global query filters enforced by the ORM. One database, many customers, no leaks.
All products
The integration engine
Enterprise integration · EAI / ESB
The integration engine
for the enterprise.
CORE Engine connects your systems with sandboxed plugins, chains them into workflows, and watches every message in real time. Multi-tenant from the first line of code, Azure-native, and fluent in plain English thanks to a built-in AI assistant.
.NET 10EF Core 10SignalRAzure Service BusAzure OpenAIBlazor
300+Source files across 7 projects
19Tenant-scoped domain entities
3SignalR hubs: engine, designer, monitoring
0Build warnings. Zero errors.
Capabilities
Everything is a plugin. Everything is a message.
Integration logic lives in plugins. Plugins are triggered by files, schedules, API calls or other plugins, and their output routes automatically to subscribers.
Sandboxed plugins
Each plugin runs in its own collectible load context with a hard timeout and per-plugin concurrency. Hot-reload a new version without restarting the engine. A plugin SDK for third parties, and a marketplace to publish to.
DAG workflow engine
Workflows are directed acyclic graphs of trigger, action, condition, transform, delay and output nodes. Validated for cycles and reachability, executed in topological order.
Visual designer
Drag nodes onto a canvas, wire them up, set properties per node type. Collaborative editing over SignalR, so two engineers can work the same workflow live.
Triggers of every kind
File monitors, cron and interval time monitors with skip logic, REST and API-key calls, and publish/subscribe between plugins. A guard service restarts monitors that fall into an error state.
Real-time monitoring
Live engine health, throughput and a streaming log in the browser. Message queue with status filters, retry, and retention cleanup on a schedule.
Architecture
From trigger to subscriber in one picture
Clean Architecture: the domain has zero dependencies, the application layer speaks CQRS, and infrastructure is where Azure lives.
Domain
Entities, value objects, events, repository contracts. No dependencies.
Application
CQRS commands and queries with validation, logging and tenant pipeline behaviors.
Infrastructure
EF Core, interceptors for audit, tenant and soft delete, AI providers, Azure services.
API · Worker · Web
REST and hubs, background services, and the Blazor console. Plus a plugin SDK for partners.
AI integration
Describe the workflow. Get the workflow.
The AI assistant turns a sentence like "when a CSV lands in the inbound folder, validate it, transform it to JSON and post it to the ERP" into a runnable workflow graph, then suggests optimizations once it has seen the execution history.
- Provider switching in configuration. Azure OpenAI (classic or Foundry endpoints) or Anthropic Claude, chosen per deployment without a code change.
- No AI SDK lock-in. Providers are called over plain HTTP, so upgrades and new vendors are a small adapter, not a migration.
- Intelligent routing. The same models can classify and route messages that do not fit a fixed rule.
Modernization
Built as a ground-up rebuild of a legacy ESB
CORE Engine replaces a .NET Framework 4.6.1 integration platform that ran on Remoting, stored procedures and a Windows Forms manager. Same job, thirty years newer.
| Legacy platform | CORE Engine |
|---|---|
| .NET Remoting callbacks | REST API + SignalR hubs |
| SQL stored procedures | EF Core 10 with compiled queries and migrations |
| Manual threads and thread pools | Channels, background services, async end to end |
| Windows Service on a box | Azure App Service or Container Apps |
| XML messages | JSON envelope, XML kept for backward compatibility |
| Plugin DLLs dropped in a folder | NuGet-packaged plugins and a marketplace catalog |
| Single tenant | Row-level multi-tenancy on every entity |
| Windows Forms manager | Web-based visual workflow designer |
| No AI | Natural-language workflow creation and intelligent routing |
The console
DashboardMessage queueLive monitoringWorkflow designerWorkflowsPluginsPlugin marketplaceFile monitorsTime monitorsAI assistantPublishers & subscriptionsTenants & API keys
See CORE Engine on your data.
We will walk you through the console, wire up one of your real integrations in a sandbox tenant, and talk honestly about what it would take to migrate.
info@eideinteractive.com