Show HN: Toolnexus for .NET – MCP and agent skills as tools for any LLM

Category: library

Tags: mcp, agent-framework, llm-tools, multi-language, ai-agents

Score: 6.8/10 (Innovation: 7, Technical: 7, Documentation: 7, Utility: 6)

Toolnexus is a multi-language library that unifies MCP tools, agent skills, native functions, and HTTP endpoints into a single callable interface for any LLM. It's interesting because it provides a lightweight, vendor-neutral alternative to heavy frameworks like LangChain and Spring AI, with byte-identical behavior across JavaScript, Python, Go, Java, and C#.

Target audience: backend devs, ai-engineers, data-engineers

Repository: https://www.nuget.org/packages/Toolnexus/ · Java · MIT · 2 stars

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