NuGet API Inspector

Name: NuGet API Inspector
Author: DimonSmart

by DimonSmartversion 1.1.10i★ –iRuns on your computer

Registry nameio.github.DimonSmart/NugetMcpServer

Install

Overview

Description from the maker (original English)

Inspect NuGet package APIs, dependencies, metadata, and breaking changes across versions.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: NUGET_CONFIG, NUGET_SOURCES

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "nugetmcpserver": {
      "command": "dnx",
      "args": [
        "DimonSmart.NugetMcpServer",
        "--yes"
      ],
      "env": {
        "NUGET_CONFIG": "your-value",
        "NUGET_SOURCES": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add nugetmcpserver --env NUGET_CONFIG=your-value --env NUGET_SOURCES=your-value -- dnx DimonSmart.NugetMcpServer --yes

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "nugetmcpserver": {
      "command": "dnx",
      "args": [
        "DimonSmart.NugetMcpServer",
        "--yes"
      ],
      "env": {
        "NUGET_CONFIG": "your-value",
        "NUGET_SOURCES": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "nugetmcpserver": {
      "type": "stdio",
      "command": "dnx",
      "args": [
        "DimonSmart.NugetMcpServer",
        "--yes"
      ],
      "env": {
        "NUGET_CONFIG": "your-value",
        "NUGET_SOURCES": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

NUGET_CONFIG env
Optional path to a NuGet.Config file for private feeds and custom package sources.
NUGET_SOURCES env
Optional semicolon-separated NuGet feed URLs or local package directories.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account DimonSmart, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32572 servers in this category
Published to the registry more recently than 60% of the other 32572 servers in this category
Basic checks equal to or better than 100% of the other 32572 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is NuGet API Inspector safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.10) reached the registry 26 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need .NET on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, AvaHR

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

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Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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AvaHR

by avahr.com

Read hiring data and create inactive assessment and questionnaire drafts for human review.

Runs in the cloudUpdated today

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

NugetMcpServer

Bad NuGet API guesses are expensive.

NugetMcpServer lets Codex, Claude Code, VS Code, Claude Desktop, and other MCP clients inspect real NuGet package metadata and public APIs before generating code. It is most useful when package version details matter or when the package lives in a private feed.

Fastest path: install it with codex mcp add or claude mcp add, then ask your assistant to use the NuGet MCP server before writing package-dependent code.

Why this exists

LLMs often know popular libraries, but they do not reliably know the exact API surface of every package version. NugetMcpServer gives the assistant a way to check the package first instead of filling gaps from memory.

NugetMcpServer connects the assistant to NuGet packages directly, including private feeds and local package folders.

What it gives to your assistant

Search NuGet packages and inspect package metadata.
Read public API definitions for real package versions.
Compare versions, inspect package files, and use nuget.org, private feeds, or local package folders.

Quick start

These commands use the current published NuGet package version, 1.1.7. dnx downloads and runs the .NET tool from NuGet, so you do not need a separate dotnet tool install step.

1. Install via Codex CLI

codex mcp add nuget -- dnx DimonSmart.NugetMcpServer@1.1.7 --yes

Check available MCP commands:

codex mcp --help

Inside the Codex TUI, run:

/mcp

Codex CLI and the Codex IDE extension share MCP configuration, so configuring the server once should make it available in both clients.

2. Install via Claude Code CLI

claude mcp add --transport stdio nuget -- dnx DimonSmart.NugetMcpServer@1.1.7 --yes

Everything after -- is the actual MCP server command and arguments.

Manage and verify the server:

claude mcp list

claude mcp get nuget

Inside Claude Code, run:

/mcp

3. Install in VS Code

Open the NuGet package page, select the MCP Server tab, and copy the generated VS Code configuration.

For manual VS Code configuration, add this to mcp.json. Replace with the package version you want to pin:

"servers": { "nuget": { "type": "stdio", "command": "dnx", "args": ["DimonSmart.NugetMcpServer@ ", "--yes"] } } }

4. Install via Docker

Use Docker when the MCP client environment does not have the .NET SDK available.

Codex:

codex mcp add nuget-docker -- docker run -i --rm ghcr.io/dimonsmart/nugetmcpserver:latest

Claude Code:

claude mcp add --transport stdio nuget-docker -- docker run -i --rm ghcr.io/dimonsmart/nugetmcpserver:latest

Run the container directly:

docker run -i --rm ghcr.io/dimonsmart/nugetmcpserver:latest

VS Code mcp.json:

"servers": { "nuget": { "type": "stdio", "command": "docker", "args": ["run", "-i", "--rm", "ghcr.io/dimonsmart/nugetmcpserver:latest"] } } }

Install in VS Code with Docker

5. Manual configuration

Codex config.toml:

[mcp_servers.nuget]

command = "dnx" args = ["DimonSmart.NugetMcpServer@ ", "--yes"]

Codex Docker variant:

[mcp_servers.nuget]

command = "docker" args = ["run", "-i", "--rm", "ghcr.io/dimonsmart/nugetmcpserver:latest"]

Claude Desktop and generic MCP clients that use the mcpServers JSON shape:

"mcpServers": { "nuget": { "command": "dnx", "args": ["DimonSmart.NugetMcpServer@ ", "--yes"] } } }

6. Private/local NuGet sources

Use NUGET_SOURCES for one or more source URLs or local package folders. Separate sources with semicolons. Use NUGET_CONFIG when you want NuGet to read a specific NuGet.Config, for example when credentials or source names are already configured there.

Codex with NUGET_SOURCES:

codex mcp add nuget-private \

--env NUGET_SOURCES="C:\NuGet\LocalFeed;https://pkgs.dev.azure.com/ORG/_packaging/Feed/nuget/v3/index.json" \ -- dnx DimonSmart.NugetMcpServer@ --yes

Claude Code with NUGET_SOURCES:

claude mcp add --transport stdio \

--env NUGET_SOURCES="C:\NuGet\LocalFeed;https://pkgs.dev.azure.com/ORG/_packaging/Feed/nuget/v3/index.json" \ nuget-private \ -- dnx DimonSmart.NugetMcpServer@ --yes

Codex with NUGET_CONFIG:

codex mcp add nuget-config \

--env NUGET_CONFIG="/path/to/NuGet.Config" \ -- dnx DimonSmart.NugetMcpServer@ --yes

Claude Code with NUGET_CONFIG:

claude mcp add --transport stdio \

--env NUGET_CONFIG="/path/to/NuGet.Config" \ nuget-config \ -- dnx DimonSmart.NugetMcpServer@ --yes

Use Windows paths such as C:\path\to\NuGet.Config on Windows. Use Unix-style paths such as /path/to/NuGet.Config on Linux and macOS. Keep paths quoted when they contain spaces.

VS Code mcp.json with private sources:

"servers": { "nuget": { "type": "stdio", "command": "dnx", "args": ["DimonSmart.NugetMcpServer@ ", "--yes"], "env": { "NUGET_SOURCES": "C:\\NuGet\\LocalFeed;https://pkgs.dev.azure.com/ORG/_packaging/Feed/nuget/v3/index.json" } } } }

Codex config.toml with private sources:

[mcp_servers.nuget]

command = "dnx" args = ["DimonSmart.NugetMcpServer@ ", "--yes"]

[mcp_servers.nuget.env] NUGET_SOURCES = "C:\\NuGet\\LocalFeed;https://pkgs.dev.azure.com/ORG/_packaging/Feed/nuget/v3/index.json"

More configuration options: Technical details

Verify it works

After the MCP client shows the server as connected, ask your assistant to use it explicitly:

Use the NuGet MCP server to inspect Dapper 2.1.66 and show the public extension methods for IDbConnection.

Before writing code, use the NuGet MCP server to inspect the real API of Microsoft.Extensions.DependencyInjection.Abstractions and use only existing public types and methods.

Use the NuGet MCP server to compare public APIs of Some.Package 1.8.0 and 2.0.0 and summarize breaking changes.

Available tools

search_packages: search packages by query and keywords.
search_packages_fuzzy: use AI-assisted fuzzy package search.
get_package_info: get package metadata, dependencies, and package shape.
list_interfaces: list public interfaces.
list_classes_records_structs: list public classes, records, and structs.
get_interface_definition: return a C# interface definition.
get_class_or_record_or_struct_definition: return a C# class, record, or struct definition.
get_enum_definition: return a C# enum definition.
compare_package_versions: compare public API changes between versions.
list_package_files: list files inside a package.
get_package_file: read a file from a package.
get_current_time: return the current server time.

Detailed parameters and development notes: Technical details

Troubleshooting

dnx is not found: install a current .NET SDK and make sure the .NET tools path is available in your shell, or use the Docker install path.
Docker is not running: start Docker Desktop or your Docker daemon, then retry the MCP client command.
The MCP client shows the server but no tools: restart the client, check the client logs, and verify the server command starts successfully outside the client.
Private feed authentication fails: check the active NuGet.Config, credential provider setup, feed URL, and whether the same user account can restore from that feed with normal NuGet tooling.
Package restore or search is slow on first run: the server and NuGet client may need to download package metadata and package files before later cached reads are faster.
Windows path quoting fails: keep paths in quotes, escape backslashes in JSON/TOML strings, and prefer NUGET_CONFIG when complex source paths or credentials are involved.
Claude Code or Codex CLI command fails unexpectedly: make sure the command includes the -- separator before dnx or docker; the MCP client options must appear before that separator.

Version

The release version is assigned by the GitHub Actions pipeline from the Git tag.

Check the installed version:

NugetMcpServer --version

Publishing

NuGet releases are published from version tags on main:

.\publish-next-version.ps1

The script creates and pushes the next vMAJOR.MINOR.PATCH tag. GitHub Actions builds, tests, updates the MCP manifest version, packs the NuGet MCP server package, and publishes it to NuGet.

WinGet publishing is also tag-driven after the GitHub release exists:

.\publish-winget-version.ps1

By default, the WinGet script uses the latest vMAJOR.MINOR.PATCH release tag. Pass -Version 1.2.3 to publish a specific release.

License

MIT

NuGet API Inspector

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

AvaHR

README from the maker

NugetMcpServer

Why this exists

What it gives to your assistant

Quick start

1. Install via Codex CLI

2. Install via Claude Code CLI

3. Install in VS Code

4. Install via Docker

5. Manual configuration

6. Private/local NuGet sources

Verify it works

Available tools

Troubleshooting

Version

Publishing

License