StdioServerTransport class

Server transport for stdio: communicates with a MCP client by reading from the current process's standard input (io.stdin) and writing to standard output (io.stdout).

This transport is primarily intended for server processes that are directly invoked by a client managing the process lifecycle.

Note: This transport assumes exclusive control over stdin/stdout for JSON-RPC communication while active. Other uses of stdin/stdout might interfere.

Implemented types

• Transport

Constructors

StdioServerTransport.new({Stdin? stdin, IOSink? stdout})

Creates a new stdio server transport.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

onclose ↔ void Function()?

Callback for when the connection is closed.

getter/setter pair, override

onerror ↔ void Function(Error error)?

Callback for reporting errors.

getter/setter pair, override

onmessage ↔ void Function(JsonRpcMessage message)?

Callback for received messages.

getter/setter pair, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sessionId → String?

Session ID is not typically applicable to stdio transport.

no setter, override

Methods

close() → Future<void>

Closes the transport by detaching from stdin and invoking onclose.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

send(JsonRpcMessage message) → Future<void>

Sends a JsonRpcMessage to the client by writing its serialized form (JSON string followed by newline) to stdout.

override

start() → Future<void>

Starts listening for messages on stdin.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited