Semantic Kernel

Profile

Overview

The bottom line — what this framework is, who it's for, and when to walk away.

Bottom Line Up Front

Semantic Kernel is a lightweight, open-source development kit for building AI agents and integrating AI models into existing C#, Python, or Java codebases. It functions as middleware, translating AI model requests to function calls and passing results back to the model. The framework is designed for enterprise-grade, future-proof, and modular solutions, offering rapid delivery.

Best For

Integrating AI models into existing codebases to automate business processes and build agents.

Avoid If

no data

Strengths

  • +Lightweight and open-source development kit.
  • +Allows easy integration of the latest AI models into existing codebases.
  • +Functions as efficient middleware for rapid delivery of enterprise-grade solutions.
  • +Flexible, modular, and observable architecture.
  • +Includes security-enhancing capabilities like telemetry support, hooks, and filters for responsible AI at scale.
  • +Offers Version 1.0+ support across C#, Python, and Java, ensuring reliability and commitment to non-breaking changes.
  • +Easily expands existing chat-based APIs to support additional modalities like voice and video.
  • +Designed to be future-proof, allowing simple model swapping without rewriting the entire codebase.
  • +Combines prompts with existing APIs to perform actions, leveraging existing code as plugins.
  • +Uses OpenAPI specifications for sharing extensions with other developers.
  • +Enables building agents that automatically call functions faster than other SDKs.

Weaknesses

    Project Health

    Is this project alive, well-maintained, and safe to bet on long-term?

    Stars

    27,682

    Open Issues

    470

    Last Commit

    3d ago

    Commit Frequency

    8x/week

    Bus Factor Score

    9 / 10

    Maintainers

    100

    Latest Version

    python-1.41.2

    Total Releases

    98

    Repo Age

    3y 1mo

    Forks

    4,543

    Monthly Downloads

    2.8M

    last 30 days

    Versions Published

    132

    Known Vulnerabilities

    2Highest: Critical

    Dependent Repos

    205

    public repos using this

    Fit

    Does it support the workflows, patterns, and capabilities your team actually needs?

    State Management

    no data

    Perspective

    Your expertise shapes what we build next.

    We build for engineers who make real architectural decisions. If something is missing, inaccurate, or could be more useful — we want to hear it.

    Last updated: 11 April 2026

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