MCPGateway

ManagedCode.MCPGateway

[](https://github.com/managedcode/MCPGateway/actions/workflows/ci.yml) [](https://github.com/managedcode/MCPGateway/actions/workflows/release.yml) [](https://github.com/managedcode/MCPGateway/actions/workflows/codeql.yml) [](https://www.nuget.org/packages/ManagedCode.MCPGateway) [](LICENSE)

`ManagedCode.MCPGateway` is a .NET 10 library that turns local `AITool` instances and remote MCP servers into one searchable and invokable execution surface for `Microsoft.Extensions.AI`.

It is built on:

• Microsoft.Extensions.AI
• the official ModelContextProtocol .NET SDK

`ManagedCode.MCPGateway` treats the official [`modelcontextprotocol/csharp-sdk`](https://github.com/modelcontextprotocol/csharp-sdk) as its MCP protocol baseline. The package uses SDK `2.0.0` and pins every gateway-created client and exported server to protocol `2026-07-28`. Non-current peers are rejected. The shipped gateway surface includes aggregated MCP tools, prompts, and resources; per-request subscriptions; SDK Tasks and Apps extensions; cache-aware results; and task-backed tool execution.

Install

dotnet add package ManagedCode.MCPGateway

What You Get

• one gateway for local AITool instances and MCP tools
• one prompt catalog for source-aware MCP prompts plus gateway-owned custom and composite prompts
• one resource catalog for MCP resources and resource templates aggregated across registered MCP sources
• one downstream MCP server export path over the aggregated tool, prompt, and resource catalogs with SDK 2.0 protoco