Semantic Kernel

Semantic Kernel

Microsoft
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About

OpenHarness is an open-source TypeScript SDK for developers building custom AI-agent applications, including coding agents, CLI tools, and web-based assistants. It provides stateless agent execution, explicit conversation-state handling, streaming events, composable middleware for retries, persistence and context compaction, hierarchical subagents, and permission-controlled tools. Developers can connect model providers through the Vercel AI SDK, add external capabilities through Model Context Protocol (MCP), and use filesystem or shell tools through configurable providers. The SDK also offers React hooks and Vue composables for streaming agent output into application interfaces. OpenHarness is installed as an npm package and is intended to be embedded in projects running on Node.js or edge runtimes; it is a developer library rather than a hosted end-user agent service.

About

Semantic Kernel is a lightweight, open-source development kit that lets you easily build AI agents and integrate the latest AI models into your C#, Python, or Java codebase. It serves as an efficient middleware that enables rapid delivery of enterprise-grade solutions. Microsoft and other Fortune 500 companies are already leveraging Semantic Kernel because it’s flexible, modular, and observable. Backed with security-enhancing capabilities like telemetry support, hooks, and filters you’ll feel confident you’re delivering responsible AI solutions at scale. Version 1.0+ support across C#, Python, and Java means it’s reliable, and committed to nonbreaking changes. Any existing chat-based APIs are easily expanded to support additional modalities like voice and video. Semantic Kernel was designed to be future-proof, easily connecting your code to the latest AI models evolving with the technology as it advances.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Software developers and engineering teams building custom AI-agent applications, including coding agents, CLI tools, and web assistants.

Audience

Developers and companies seeking a tool to build and deploy AI agents

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Supported
Live Online Not Supported
In Person Supported

Company Information

OpenHarness
open-harness.dev/

Company Information

Microsoft
Founded: 1975
United States
learn.microsoft.com/en-us/semantic-kernel/overview/

Alternatives

Deep Agents

Deep Agents

LangChain

Alternatives

LM-Kit.NET

LM-Kit.NET

LM-Kit
Mastra

Mastra

Mastra AI
AutoGen

AutoGen

Microsoft
eve

eve

Vercel

Categories

Categories

Agentic AI Supported
AI Agent Builders Supported
AI Agents Supported
AI Development Supported
AI SDKs Supported

Integrations

Anthropic Supported
Azure App Service Not Supported
C# Not Supported
DeepSeek R1 Not Supported
Dock Not Supported
Java Not Supported
Microsoft 365 Copilot Not Supported
Model Context Protocol (MCP) Supported
OpenAI Supported
Openlayer Not Supported
Prefactor Not Supported
Python Not Supported
Vercel AI SDK Supported
Weaviate Not Supported

Integrations

Anthropic Not Supported
Azure App Service Supported
C# Supported
DeepSeek R1 Supported
Dock Supported
Java Supported
Microsoft 365 Copilot Supported
Model Context Protocol (MCP) Not Supported
OpenAI Not Supported
Openlayer Supported
Prefactor Supported
Python Supported
Vercel AI SDK Not Supported
Weaviate Supported
Claim OpenHarness and update features and information
Claim OpenHarness and update features and information
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