mattt
mattt is the online identity and publishing/development portfolio of Mattt Thompson, a software engineer who creates and maintains open-source software for Apple platforms and writes about Swift, Objective-C, Cocoa, and emerging developer technologies. His current work includes connecting personal Apple data to AI through iMCP and explaining overlooked aspects of software development through NSHipster.
At a Glance
- Apple-platform and Swift developers
- Open-source software users and maintainers
- Developers building MCP clients and AI assistants
- Mac users who want AI access to local Apple data
- +1 more
AI Tools by mattt
(3)
AnyDecisionModel
Swift Library for Typed LLM Decisions
AnySpeechRecognizer
Swift Speech Recognition Package
iMCP
macOS Apple Data MCP Bridge
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Latest News
iMCP 1.5.4 released; local server connections are restricted to loopback while Bonjour discovery remains available.
iMCP added Messages attachment listing and attachment reading to messages_fetch/messages_attachment_read.
iMCP 1.5.3 released with richer calendar/reminder data and an IPv4 listener fix.
iMCP 1.5.2 released with a fix for persistence of the Show in Menu Bar setting.
Products & Services
A macOS menu-bar app and bundled imcp-server that exposes Calendar, Contacts, Location, Maps, Messages, Phone, Reminders, Shortcuts, and Weather to AI assistants through the Model Context Protocol. Requires macOS 15.3 or later and is distributed via download and Homebrew.
A journal and publishing site covering overlooked features of Objective-C, Swift, and Cocoa; Mattt founded it and continues to publish articles.
A widely used open-source networking library in the Apple ecosystem created by Mattt.
An elegant HTTP networking library in Swift; Mattt's GitHub profile identifies it among the open-source libraries he created.
Market Position
Mattt is positioned as an individual Apple-platform open-source creator and technical publisher rather than a conventional venture-backed company. iMCP differentiates from generic remote MCP servers by providing a native, permission-controlled macOS bridge to local Apple data and system services; its practical alternatives are other macOS personal-data MCP servers and manually configured, service-specific MCP integrations.
Leadership
Executive Team
Mattt Thompson
Independent software engineer, open-source developer, and publisher
Founded NSHipster; created AFNetworking and Alamofire; has worked at Apple, GitHub, Heroku, and Replicate. Earlier work included a web design company, Ruby development, and iOS software.
Founding Story
Mattt began as a web designer and developer, shifted toward programming after studying Ruby in summer 2005, and pursued open-source work because he believed useful software should be shared and that making things that improve other people's lives was the enduring motivation. The extra 't' in Mattt originated as a practical way to distinguish his name and became his public identity.
Business Model
Revenue Model
Public sources describe open-source software, sponsorship, and freely downloadable/Homebrew-distributed projects rather than a disclosed subscription, API-usage, or licensing business model.
Target Markets
- Apple-platform and Swift developers
- Open-source software users and maintainers
- Developers building MCP clients and AI assistants
- Mac users who want AI access to local Apple data
- Readers seeking advanced Swift, Objective-C, Cocoa, and developer-tooling guidance
- Ask AI assistants questions about personal calendar, contacts, messages, location, maps, reminders, phone history, or weather
- Create and manage calendar events and reminders through an MCP client
- Search and act on local Apple data without manually copying it into a chat
- Run Mac Shortcuts and initiate phone calls from an AI workflow
- Build or test MCP clients and servers against a local macOS data bridge