Merge branch 'main' into feature/v2-registered-definitions-classes

Author: KKonstantinov

.github/workflows/main.yml

@@ -58,11 +58,47 @@ jobs:
 
             - run: pnpm test:all
 
+    test-runtimes:
+        runs-on: ubuntu-latest
+        strategy:
+            fail-fast: false
+            matrix:
+                include:
+                    - runtime: bun
+                      version: "1.x"
+                    - runtime: deno
+                      version: v2.x
+        steps:
+            - uses: actions/checkout@v6
+            - name: Install pnpm
+              uses: pnpm/action-setup@v4
+              with:
+                  run_install: false
+            - uses: actions/setup-node@v6
+              with:
+                  node-version: 24
+                  cache: pnpm
+                  cache-dependency-path: pnpm-lock.yaml
+            - name: Set up Bun
+              if: matrix.runtime == 'bun'
+              uses: oven-sh/setup-bun@v2
+              with:
+                  bun-version: ${{ matrix.version }}
+            - name: Set up Deno
+              if: matrix.runtime == 'deno'
+              uses: denoland/setup-deno@v2
+              with:
+                  deno-version: ${{ matrix.version }}
+            - run: pnpm install
+            - run: pnpm build:all
+            - name: Run ${{ matrix.runtime }} integration tests
+              run: pnpm --filter @modelcontextprotocol/test-integration test:integration:${{ matrix.runtime }}
+
     publish:
         runs-on: ubuntu-latest
         if: github.event_name == 'release'
         environment: release
-        needs: [build, test]
+        needs: [build, test, test-runtimes]
 
         permissions:
             contents: read

README.md

@@ -25,7 +25,7 @@
 
 The Model Context Protocol (MCP) allows applications to provide context for LLMs in a standardized way, separating the concerns of providing context from the actual LLM interaction.
 
-This repository contains the TypeScript SDK implementation of the MCP specification and ships:
+This repository contains the TypeScript SDK implementation of the MCP specification. It runs on **Node.js**, **Bun**, and **Deno**, and ships:
 
 - MCP **server** libraries (tools/resources/prompts, Streamable HTTP, stdio, auth helpers)
 - MCP **client** libraries (transports, high-level helpers, OAuth helpers)
@@ -57,12 +57,20 @@ They are intentionally thin adapters: they should not introduce new MCP function
 
 ```bash
 npm install @modelcontextprotocol/server zod
+# or
+bun add @modelcontextprotocol/server zod
+# or
+deno add npm:@modelcontextprotocol/server npm:zod
 ```
 
 ### Client
 
 ```bash
 npm install @modelcontextprotocol/client zod
+# or
+bun add @modelcontextprotocol/client zod
+# or
+deno add npm:@modelcontextprotocol/client npm:zod
 ```
 
 ### Optional middleware packages

docs/client-quickstart.md

@@ -19,10 +19,13 @@ This quickstart assumes you have familiarity with:
 
 Before starting, ensure your system meets these requirements:
 
-- Node.js 20 or higher installed
+- Node.js 20 or higher installed (or **Bun** / **Deno** — the SDK supports all three runtimes)
 - Latest version of `npm` installed
 - An Anthropic API key from the [Anthropic Console](https://console.anthropic.com/settings/keys)
 
+> [!TIP]
+> This tutorial uses Node.js and npm, but you can substitute `bun` or `deno` commands where appropriate. For example, use `bun add` instead of `npm install`, or run the client with `bun run` / `deno run`.
+
 ## Set up your environment
 
 First, let's create and set up our project:

docs/server-quickstart.md

@@ -36,6 +36,9 @@ node --version
 npm --version
 ```
 
+> [!TIP]
+> The MCP SDK also works with **Bun** and **Deno**. This tutorial uses Node.js, but you can substitute `bun` or `deno` commands where appropriate. For HTTP-based servers on Bun or Deno, use `WebStandardStreamableHTTPServerTransport` instead of the Node.js-specific transport — see the [server guide](./server.md) for details.
+
 ## Set up your environment
 
 First, let's install Node.js and npm if you haven't already. You can download them from [nodejs.org](https://nodejs.org/).