diff --git a/README.md b/README.md
index b2ef73d..0055376 100644
--- a/README.md
+++ b/README.md
@@ -110,7 +110,7 @@ func main() {
 	server := mcp.NewServer("greeter", "v1.0.0", nil)
 	server.AddTools(mcp.NewServerTool("greet", "say hi", SayHi))
 	// Run the server over stdin/stdout, until the client disconnects
-	if err := server.Run(context.Background(), mcp.NewStdIOTransport()); err != nil {
+	if err := server.Run(context.Background(), mcp.NewStdioTransport()); err != nil {
 		log.Fatal(err)
 	}
 }
diff --git a/design/design.md b/design/design.md
index 4b39e10..66338b7 100644
--- a/design/design.md
+++ b/design/design.md
@@ -110,16 +110,16 @@ func NewCommandTransport(cmd *exec.Command) *CommandTransport
 func (*CommandTransport) Connect(ctx context.Context) (Connection, error) {
 ```
 
-The `StdIOTransport` is the server side of the stdio transport, and connects by binding to `os.Stdin` and `os.Stdout`.
+The `StdioTransport` is the server side of the stdio transport, and connects by binding to `os.Stdin` and `os.Stdout`.
 
 ```go
-// A StdIOTransport is a [Transport] that communicates using newline-delimited
+// A StdioTransport is a [Transport] that communicates using newline-delimited
 // JSON over stdin/stdout.
-type StdIOTransport struct { /* unexported fields */ }
+type StdioTransport struct { /* unexported fields */ }
 
-func NewStdIOTransport() *StdIOTransport
+func NewStdioTransport() *StdioTransport
 
-func (t *StdIOTransport) Connect(context.Context) (Connection, error)
+func (t *StdioTransport) Connect(context.Context) (Connection, error)
 ```
 
 #### HTTP transports
@@ -378,7 +378,7 @@ A server that can handle that client call would look like this:
 server := mcp.NewServer("greeter", "v1.0.0", nil)
 server.AddTools(mcp.NewServerTool("greet", "say hi", SayHi))
 // Run the server over stdin/stdout, until the client disconnects.
-transport := mcp.NewStdIOTransport()
+transport := mcp.NewStdioTransport()
 session, err := server.Connect(ctx, transport)
 ...
 return session.Wait()
diff --git a/examples/hello/main.go b/examples/hello/main.go
index 86bb143..2e8c2d9 100644
--- a/examples/hello/main.go
+++ b/examples/hello/main.go
@@ -68,7 +68,7 @@ func main() {
 		log.Printf("MCP handler listening at %s", *httpAddr)
 		http.ListenAndServe(*httpAddr, handler)
 	} else {
-		t := mcp.NewLoggingTransport(mcp.NewStdIOTransport(), os.Stderr)
+		t := mcp.NewLoggingTransport(mcp.NewStdioTransport(), os.Stderr)
 		if err := server.Run(context.Background(), t); err != nil {
 			log.Printf("Server failed: %v", err)
 		}
diff --git a/internal/readme/server/server.go b/internal/readme/server/server.go
index 4c7cdd4..7d5b6ea 100644
--- a/internal/readme/server/server.go
+++ b/internal/readme/server/server.go
@@ -27,7 +27,7 @@ func main() {
 	server := mcp.NewServer("greeter", "v1.0.0", nil)
 	server.AddTools(mcp.NewServerTool("greet", "say hi", SayHi))
 	// Run the server over stdin/stdout, until the client disconnects
-	if err := server.Run(context.Background(), mcp.NewStdIOTransport()); err != nil {
+	if err := server.Run(context.Background(), mcp.NewStdioTransport()); err != nil {
 		log.Fatal(err)
 	}
 }
diff --git a/mcp/cmd_test.go b/mcp/cmd_test.go
index 7ff1573..69f67a5 100644
--- a/mcp/cmd_test.go
+++ b/mcp/cmd_test.go
@@ -33,7 +33,7 @@ func runServer() {
 	server := mcp.NewServer("greeter", "v0.0.1", nil)
 	server.AddTools(mcp.NewServerTool("greet", "say hi", SayHi))
 
-	if err := server.Run(ctx, mcp.NewStdIOTransport()); err != nil {
+	if err := server.Run(ctx, mcp.NewStdioTransport()); err != nil {
 		log.Fatal(err)
 	}
 }
diff --git a/mcp/mcp.go b/mcp/mcp.go
index 91f1487..1a0cf13 100644
--- a/mcp/mcp.go
+++ b/mcp/mcp.go
@@ -26,7 +26,7 @@
 //
 // A [Transport] connects a bidirectional [Connection] of jsonrpc2 messages. In
 // practice, transports in the MCP spec are are either client transports or
-// server transports. For example, the [StdIOTransport] is a server transport
+// server transports. For example, the [StdioTransport] is a server transport
 // that communicates over stdin/stdout, and its counterpart is a
 // [CommandTransport] that communicates with a subprocess over its
 // stdin/stdout.
diff --git a/mcp/transport.go b/mcp/transport.go
index dafd1e7..8498eb3 100644
--- a/mcp/transport.go
+++ b/mcp/transport.go
@@ -52,9 +52,9 @@ type Connection interface {
 	Close() error // may be called concurrently by both peers
 }
 
-// A StdIOTransport is a [Transport] that communicates over stdin/stdout using
+// A StdioTransport is a [Transport] that communicates over stdin/stdout using
 // newline-delimited JSON.
-type StdIOTransport struct {
+type StdioTransport struct {
 	ioTransport
 }
 
@@ -68,10 +68,10 @@ func (t *ioTransport) Connect(context.Context) (Connection, error) {
 	return newIOConn(t.rwc), nil
 }
 
-// NewStdIOTransport constructs a transport that communicates over
+// NewStdioTransport constructs a transport that communicates over
 // stdin/stdout.
-func NewStdIOTransport() *StdIOTransport {
-	return &StdIOTransport{ioTransport{rwc{os.Stdin, os.Stdout}}}
+func NewStdioTransport() *StdioTransport {
+	return &StdioTransport{ioTransport{rwc{os.Stdin, os.Stdout}}}
 }
 
 // An InMemoryTransport is a [Transport] that communicates over an in-memory