Semantic Kernel
AutonomousFreeby Microsoft
Open-source SDK for integrating LLMs into applications with plugin architecture for building AI agents and copilots.
Semantic Kernel is Microsoft's open-source SDK for embedding large language models directly into applications, services, and enterprise workflows. Rather than locking developers into a single vendor, it provides a plugin architecture that treats functions, prompts, and native code as interchangeable building blocks an AI agent can call. This makes it a popular choice for teams building copilots, autonomous agents, and orchestration layers on top of .NET, Python, or Java stacks, especially where existing business logic and APIs need to be exposed to an LLM in a structured, auditable way.
What sets Semantic Kernel apart from many autonomous-agent frameworks is its emphasis on production readiness: planners, memory connectors, and a kernel object that manages plugin execution give engineering teams a predictable way to compose AI-driven workflows instead of relying on ad hoc prompt chains. Because it's model-agnostic, teams can swap between Azure OpenAI, OpenAI, or other supported models without rewriting plugin logic. That flexibility pairs naturally with BusinessMCP's own model-agnostic philosophy — agents built with Semantic Kernel can call Claude, GPT, or Gemini through the same hosted infrastructure without re-architecting the underlying plugin design.
The practical challenge most teams hit is not the SDK itself but everything around it: connecting the same set of internal tools, CRM data, ad platform metrics, and revenue dashboards to every Semantic Kernel plugin they build, then repeating that wiring for every other agent framework in use. BusinessMCP solves this by letting you connect your tools, databases, and ad platforms once to a single hosted MCP server, then exposing that unified context to Semantic Kernel plugins (or any other AI agent) through one authenticated endpoint at /api/mcp using a Bearer mcph_* key. Instead of maintaining bespoke connectors inside your Semantic Kernel plugin architecture, your plugins call the same MCP endpoint that powers your business-intelligence dashboard, keeping data access consistent across every agent you deploy.
This approach is particularly useful for organizations running Semantic Kernel alongside other frameworks — perhaps prototyping with LangChain agents or comparing orchestration approaches with AutoGen or CrewAI. Because BusinessMCP's server is cookieless and GDPR-friendly by design, it's a low-friction way to give Semantic Kernel-based copilots access to live business data without duplicating compliance work per integration. Teams building internal copilots, customer-facing assistants, or workflow automation agents can standardize their data layer through the hosted MCP server while keeping full freedom to choose which LLM provider powers the actual reasoning.
For developers evaluating Semantic Kernel for enterprise AI agent development, pairing it with a managed MCP server removes a recurring bottleneck: rebuilding tool and database integrations every time a new plugin or agent is added. Connect once through BusinessMCP, and every Semantic Kernel plugin — along with any other agent framework in your stack — draws from the same live business intelligence, revenue data, and ad platform context, cutting integration time and keeping your AI agent ecosystem consistent as it grows.
Key features
- Plugin architecture
- Memory management
- Planner
- Multi-model
- .NET & Python
What teams use it for
- Building enterprise copilots that call internal APIs and business data through Semantic Kernel plugins
- Orchestrating multi-step autonomous agent workflows with planners and native function calling
- Connecting .NET or Python applications to LLMs without vendor lock-in via a unified MCP data layer
- Prototyping AI assistants that need consistent access to CRM, ad platform, and revenue data across frameworks
- Standardizing tool and database connectors across Semantic Kernel and other agent frameworks in the same organization
Connect Semantic Kernel to your business data
BusinessMCP unifies your tools, databases, ad platforms, and Stripe revenue into one hosted MCP server with a business-intelligence dashboard. Give Semantic Kernel — or any Claude, GPT, or Gemini agent — a Bearer mcph_* key for your endpoint at /api/mcp, and it works from your real, unified business data instead of guesswork.
Related agents
All Autonomous agentsLangChain Agents
Framework for building composable AI agents with tools, memory, chains, and retrieval-augmented generation capabilities.
LlamaIndex Agents
Data framework for building AI agents that can query, summarize, and reason over your private data sources.
Dify
Open-source LLM application development platform for building AI agents, chatbots, and workflow automation with visual tools.
Frequently asked questions
What is Semantic Kernel used for?
Semantic Kernel is an open-source SDK from Microsoft that lets developers integrate LLMs into applications using a plugin architecture, commonly used for building AI copilots and autonomous agents.
How does Semantic Kernel connect to business data and tools?
Semantic Kernel plugins can call external APIs directly, or teams can route those calls through a hosted MCP server so tools, databases, and ad platforms are connected once and reused across every plugin.
Can Semantic Kernel work with any LLM provider?
Yes, Semantic Kernel is model-agnostic and supports swapping between providers like Azure OpenAI or OpenAI, which pairs well with BusinessMCP's own model-agnostic MCP endpoint.
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