NuGet Context MCP Server

The NuGet Context MCP Server bridges the gap between .NET project files and large language models by exposing rich package‑dependency information through the Model Context Protocol. Developers can query a running server to discover which NuGet packages a solution or project references, what the latest compatible versions are, and retrieve detailed metadata such as authorship, licensing, or release notes. This capability is essential when building AI‑assisted tooling that needs to reason about dependencies, suggest upgrades, or enforce compliance policies without manually parsing XML files.

At its core, the server parses and files to extract entries, then consults the configured NuGet feed (defaulting to nuget.org) to resolve available versions and metadata. Results are cached locally in SQLite, dramatically reducing network latency for repeat queries. By offering a set of MCP tools—, , , , and —the server provides a consistent, language‑agnostic interface that any AI client can consume over stdio. This design eliminates the need for bespoke parsers in each integration, ensuring that dependency data remains accurate and up‑to‑date across diverse development environments.

Typical use cases include IDE extensions that auto‑generate upgrade suggestions, continuous integration pipelines that verify dependency licenses against corporate policy, or chatbot assistants that answer questions like “What is the latest stable version of Newtonsoft.Json?” in a .NET project. Because the server communicates via MCP, it can be orchestrated alongside other context providers—such as Git metadata or code‑analysis tools—to create a holistic AI development assistant that understands both the source code and its external dependencies.

Unique advantages of this server lie in its lightweight .NET 9 implementation, zero‑dependency cache, and comprehensive tooling exposed through MCP. It requires no external service beyond the NuGet feed, enabling on‑premise or offline deployments for security‑sensitive projects. The clear separation between parsing, caching, and protocol handling also makes it straightforward to extend or replace individual components without affecting the overall contract. For developers building AI‑enhanced workflows, the NuGet Context MCP Server offers a reliable, well‑documented bridge to the world of .NET package management.