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Open Source Maintenance FeeOpen Source Maintenance Fee

Projects that require a Maintenance Fee

The following Open Source Projects require a Maintenance Fee. This list may not be always be up to date so be sure to check each project.

  • Agents.AI — Extensions for Microsoft.Agents.AI.
  • AntPlus — .NET class library for ANT+ wireless sensor devices.
  • CloudActors — Opinionated cloud-native distributed actors built on Orleans.
  • CloudStorageAccount — Brings back CloudStorageAccount for Azure Storage SDK v12+.
  • CredentialManager — Cross-platform Git credential store as a NS2.0 library.
  • DependencyInjection — Attribute-based, compile-time service registration for .NET DI.
  • dotnet-retest — Automatically retries flaky .NET tests until they pass.
  • dotnet-trx — Render and analyze .NET test results (.trx) in the console.
  • Excelsior — Data-driven Excel (.xlsx) generation and reading from .NET models.
  • Extensions.AI — Extensions for Microsoft.Extensions.AI.
  • GeoConvert — Converts maps between geospatial vector formats.
  • GitInfo — Git and SemVer info from MSBuild, C# and VB.
  • IconifyBundle — Strongly-typed Iconify icons for .NET via a source generator.
  • JQSharp — A C# implementation of jq.
  • json-everything — A suite of JSON tools for .NET (Schema, Path, Patch, Pointer).
  • json5 — JSON5 implementation for .NET on top of System.Text.Json.
  • MapBundle — Bundled, offline map data for .NET as NuGet packages.
  • md — Minimal markdown output for AI-optimized consumption of dotnet tools.
  • Merq — In-process command and event message bus for .NET.
  • Morph — Renders Word .docx or HTML to PNG images, no Word required.
  • MsOfficeDiff — Global tools to diff Word documents and Excel workbooks.
  • Mvp.Xml — XML utilities for .NET (EXSLT, XInclude, XPointer, and more).
  • Naiad — Renders Mermaid diagrams to SVG, no browser required.
  • NPOI — Read and write Excel and Word files in .NET (Apache POI port).
  • NuGetizer — Declarative, flexible NuGet packaging for .NET projects.
  • OpenXmlHtml — Converts HTML into native OpenXml for .xlsx and .docx.
  • OpenXmlStreaming — Forward-only streaming writer for .docx/.xlsx/.pptx.
  • PandocNet — Converts documents between formats via Pandoc.
  • Parchment — Word (.docx) generation from .NET models and Liquid templates.
  • runfile — Run C# programs from gists or remote repositories.
  • Schematron — A Schematron ISO/IEC standard processor for .NET.
  • SmallSharp — Create, edit and run multiple C# top-level programs in one project.
  • Spectre.Yaml — Display YAML in Spectre.Console.
  • StructId — Strongly-typed IDs via record structs and source generators.
  • TableStorage — Repository pattern with POCO support for Azure/Cosmos Table Storage.
  • ThisAssembly — Exposes assembly and project metadata as compile-time constants.
  • Web — Query web content as XLinq (LINQ to XML) documents.
  • WhatsApp — WhatsApp agents for .NET.
  • WiX Toolset — Builds Windows installers (MSI) from XML source.
  • xAI — .NET SDK for xAI’s gRPC API, with Microsoft.Extensions.AI integration.