01 · ABOUT

What MCP PHP SDK does

The official PHP SDK for Model Context Protocol (MCP). It provides a framework-agnostic API for implementing MCP servers and clients in PHP.

Why teams reach for it: It is the official PHP SDK for MCP - a PHP Foundation and Symfony collaboration - giving PHP applications one framework-agnostic API for both MCP servers and MCP clients.

LibraryOpen SourcePHPMCP Server & Client
02 · TECHNICAL SPECIFICATIONS

How MCP PHP SDK compares

Fields the vendor doesn't document are left blank here rather than guessed — a blank means nothing verified, not a "no."

Language
PHP
Official Sdk
Yes
Spec Revision Implemented
2026-07-28
Transports
stdio, Streamable HTTP
Builds Servers
Yes
Builds Clients
Yes
Auth Helpers
Built-in
Generates From Openapi
No
Mcp Apps Support
Yes
Server Composition
No
Package Registry
Packagist
Package Name
mcp/sdk
03 · NEW TO MCP?
What will you use to implement the protocol?

A framework or SDK gives developers pre-built code for creating an MCP server or client, so they don't have to implement the protocol from scratch.