Semantic Kernel
github.com
Open sourceMCPNo card
Microsoft SDK for integrating LLMs, plugins and agents into .NET apps
- Free tier
- Yes
- Per month
- Free
- MCP
- Yes
Why it's here
Free Microsoft SDK with agent and MCP support, best suited to developers building app integrations.
Free tier
SDK is free; model API and cloud service usage billed separately
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Agent Frameworks
#18 of 26Free Microsoft SDK with agent and MCP support, best suited to developers building app integrations.
| per month | Open sourceFreeSelf-host; model and Azure costs extra |
|---|---|
| Native agents | |
| Own LLM keys | |
| No usage meter | |
| Built-in RAG | |
| API & embed | |
| MCP tools | |
| Triggers | |
| Human approval | |
| Run logs |