MAINTAINERS.md

MCP Maintainers

This document lists current maintainers in the Model Context Protocol project.

Last updated: October 15, 2025

Lead Maintainers

• David Soria Parra
• Justin Spahr-Summers (currently inactive)

Core Maintainers

• Inna Harper
• Basil Hosmer
• Paul Carleton
• Nick Cooper
• Nick Aldridge
• Che Liu
• Den Delimarsky

SDK Maintainers

Java SDK

• Christian Tzolov
• Dariusz Jędrzejczyk
• Daniel Garnier-Moiroux

Ruby SDK

• Topher Bullock
• Koichi Ito
• Ateş Göral

Swift SDK

• Matt Zmuda
• Carl Peaslee

Go SDK

• Rob Findley
• Jonathan Amsterdam
• Sam Thanawalla

C# SDK

• Stephan Halter
• Mike Kistler

Kotlin SDK

• Leonid Stashevsky
• Sergey Ignatov

Python SDK

• Inna Harper
• Jerome Swannack
• Marcelo Trylesinski
• Max Isbey

TypeScript SDK

• Inna Harper
• Felix Weinberger
• Olivier Chafik

Rust SDK

• Alex Hancock

PHP SDK

• Kyrian Obikwelu
• Christopher Hertel

Project Maintainers

use-mcp

• Glen Maddern

Inspector

• Cliff Hall
• Konstantin Konstantinov
• Ola Hungerford

Registry

• Toby Padilla
• Tadas Antanavicius
• Adam Jones
• Radoslav (Rado) Dimitrov

MCPB (Model Context Protocol Bundle)

• Alexander Sklar
• Adam Jones
• Joan Xie

Reference Servers

• Ola Hungerford
• Cliff Hall
• Tadas Antanavicius
• Shaun Smith
• Jonathan Hefner

Community Moderators

• Ola Hungerford
• Cliff Hall
• Shaun Smith
• Jonathan Hefner
• Tadas Antanavicius

Working Group & Interest Group Maintainers

Working Groups and Interest Groups are not required to have maintainers (they can be managed by informal facilitators), but maintainers may be appointed on an as-needed basis.

Security Interest Group

• Den Delimarsky
• Paul Carleton
• Jenn Newton

Authorization Interest Group

• Aaron Parecki
• Darin McAdams
• Paul Carleton

Client Implementor Interest Group

Note: These individuals serve as MCP protocol representatives for their respective clients. For client-specific issues, use the official support channels provided by each product.

• Alex Hancock - Goose
• Ben Brandt - Zed
• Connor Peet - VS Code
• Gabriel Peal - Codex
• Jun Han - GitHub Copilot for JetBrains
• Tyler Leonhardt - VS Code
• Michael Feldstein - Cursor

Financial Services Interest Group

• Sambhav Kothari

Transports Interest Group

• Kurtis Van Gent
• Jonathan Hefner
• Shaun Smith
• Harvey Tuch

Server Identity Working Group

• Nick Cooper

Agents Working Group

• Peter Alexander
• Luca Chang
• Inna Harper

About This Document

This document is updated by the MCP maintainers and reflects the current governance structure. For more information about MCP governance, see our governance documentation.