diff --git a/.changeset/legacy-module-resolution-types.md b/.changeset/legacy-module-resolution-types.md
new file mode 100644
index 0000000000..c12cb839db
--- /dev/null
+++ b/.changeset/legacy-module-resolution-types.md
@@ -0,0 +1,10 @@
+---
+'@modelcontextprotocol/client': patch
+'@modelcontextprotocol/server': patch
+'@modelcontextprotocol/node': patch
+'@modelcontextprotocol/express': patch
+'@modelcontextprotocol/fastify': patch
+'@modelcontextprotocol/hono': patch
+---
+
+Add top-level `types` field (and `typesVersions` on client/server for their subpath exports) so consumers on legacy `moduleResolution: "node"` can resolve type declarations. The `exports` map remains the source of truth for `nodenext`/`bundler` resolution. The `typesVersions` map includes entries for subpaths added by sibling PRs in this series (`zod-schemas`, `stdio`); those entries are no-ops until the corresponding `dist/*.d.mts` files exist.
diff --git a/packages/client/package.json b/packages/client/package.json
index cf9dbff6bd..38d7fbc171 100644
--- a/packages/client/package.json
+++ b/packages/client/package.json
@@ -47,6 +47,17 @@
             }
         }
     },
+    "types": "./dist/index.d.mts",
+    "typesVersions": {
+        "*": {
+            "validators/cf-worker": [
+                "dist/validators/cfWorker.d.mts"
+            ],
+            "stdio": [
+                "dist/stdio.d.mts"
+            ]
+        }
+    },
     "files": [
         "dist"
     ],
diff --git a/packages/middleware/express/package.json b/packages/middleware/express/package.json
index 39d671b812..b164f291a2 100644
--- a/packages/middleware/express/package.json
+++ b/packages/middleware/express/package.json
@@ -27,6 +27,7 @@
             "import": "./dist/index.mjs"
         }
     },
+    "types": "./dist/index.d.mts",
     "files": [
         "dist"
     ],
diff --git a/packages/middleware/fastify/package.json b/packages/middleware/fastify/package.json
index d3d4c352b3..de6df8f3bc 100644
--- a/packages/middleware/fastify/package.json
+++ b/packages/middleware/fastify/package.json
@@ -27,6 +27,7 @@
             "import": "./dist/index.mjs"
         }
     },
+    "types": "./dist/index.d.mts",
     "files": [
         "dist"
     ],
diff --git a/packages/middleware/hono/package.json b/packages/middleware/hono/package.json
index f23c9ccb6d..f067aedf91 100644
--- a/packages/middleware/hono/package.json
+++ b/packages/middleware/hono/package.json
@@ -27,6 +27,7 @@
             "import": "./dist/index.mjs"
         }
     },
+    "types": "./dist/index.d.mts",
     "files": [
         "dist"
     ],
diff --git a/packages/middleware/node/package.json b/packages/middleware/node/package.json
index 17a17f083e..30fa7ed663 100644
--- a/packages/middleware/node/package.json
+++ b/packages/middleware/node/package.json
@@ -26,6 +26,14 @@
             "import": "./dist/index.mjs"
         }
     },
+    "types": "./dist/index.d.mts",
+    "typesVersions": {
+        "*": {
+            "sse": [
+                "dist/sse.d.mts"
+            ]
+        }
+    },
     "files": [
         "dist"
     ],
diff --git a/packages/server/package.json b/packages/server/package.json
index b40135ec90..7cc9e5dae7 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -47,6 +47,20 @@
             }
         }
     },
+    "types": "./dist/index.d.mts",
+    "typesVersions": {
+        "*": {
+            "validators/cf-worker": [
+                "dist/validators/cfWorker.d.mts"
+            ],
+            "zod-schemas": [
+                "dist/zodSchemas.d.mts"
+            ],
+            "stdio": [
+                "dist/stdio.d.mts"
+            ]
+        }
+    },
     "files": [
         "dist"
     ],