MCP PHP SDK

MessageInterface extends JsonSerializable

Refers to any valid JSON-RPC object that can be decoded off the wire, or encoded to be sent.

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Constants

JSONRPC_VERSION = '2.0'
PROTOCOL_VERSION = \Mcp\Schema\Enum\ProtocolVersion::V2025_06_18

JSONRPC_VERSION


    public
        mixed
    JSONRPC_VERSION
    = '2.0'

PROTOCOL_VERSION


    public
        mixed
    PROTOCOL_VERSION
    = \Mcp\Schema\Enum\ProtocolVersion::V2025_06_18

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Table Of Contents
- Constants
- Methods
Constants
- JSONRPC_VERSION
- PROTOCOL_VERSION