TransportInterface

Interface for MCP transport implementations. Transports handle the low-level communication with MCP servers. Supported transports: - HTTP/SSE: For remote MCP servers (like Cloudflare) - Stdio: For local MCP servers spawned as subprocesses (like Namecheap)

abstract public function connect(): void

Connect to the MCP server.

Throws

McpConnectionException If connection fails

abstract public function disconnect(): void

Disconnect from the MCP server.

abstract public function isConnected(): bool

Check if transport is connected.

abstract public function request(string $method, array $params = []): array

Send a JSON-RPC request and wait for response.

Parameters

Parameters of request()
Name	Type	Description
$method	`string`	JSON-RPC method name
$params	`array<string, mixed>`	Method parameters

Returns

Response data

Throws

McpTransportException If communication fails

abstract public function notify(string $method, array $params = []): void

Send a JSON-RPC notification (no response expected).

Parameters

Parameters of notify()
Name	Type	Description
$method	`string`	JSON-RPC method name
$params	`array<string, mixed>`	Method parameters