Guide · Updated May 2026
MCP, explained — and the best MCP clients on Mac.
Model Context Protocol (MCP) is the standard that turned Claude Desktop from a chat window into something that can actually do work on your machine. As of 2026, six MCP clients on Mac are worth knowing. Here's what MCP is in plain English, why it matters for note-taking, and which clients to use.
TL;DR
The 30-second version
MCP is an open spec (released by Anthropic, late 2024) that lets AI clients call external tools and access external data through a standard protocol. It's USB for AI.
The best MCP clients on Mac in 2026: Claude Desktop (general use), Cursor (coding), Windsurf (coding), Cline (free + open source), Continue (VS Code-native), Zed (lightweight). All speak the same protocol, so a tool you build for one works in all six.
What MCP actually is.
Before MCP, every AI client that wanted to access tools (files, APIs, databases) had to build that integration into the client itself. ChatGPT had its custom "plugins" framework. Claude had its tool-use API. Cursor had its agentic workflow. None of them talked to each other.
MCP changes that. It defines a wire protocol where:
- An MCP server exposes a set of tools, resources, and prompts.
- An MCP client (like Claude Desktop) discovers and calls them.
The same server works in any client. Build a notes server like Eyrie's once, and it shows up in Claude Desktop, Cursor, Windsurf, and the rest — no per-client integration work.
Why it matters for notes.
The single most useful MCP server, for most knowledge workers, is one that points an AI client at your local files. Suddenly:
- Claude can read your meeting notes when you ask "what did we decide about X?"
- Cursor can pull design context from your spec docs while writing code.
- Any MCP-aware client can save a fetched URL into your vault as Markdown.
Without MCP, you copy-paste between apps. With MCP, the AI just opens the file. The friction reduction is dramatic once you've tried it.
The Mac MCP clients, ranked.
Claude Desktop
Free / Pro $20/moWhat it is. Anthropic's official desktop app, native macOS. The reference MCP client — every protocol improvement lands here first.
- Reference implementation, always current
- Best UI for browsing MCP tool results
- Strong tool-call approval flow
- Closed source
- Restricted to Claude models
- Setup requires editing a JSON config
Get it if: you want the canonical MCP experience and you already pay for Claude Pro. Setup guide for notes →
Cursor
Free / Pro $20/moWhat it is. AI-first VS Code fork. Added MCP support in early 2025. Used by hundreds of thousands of developers daily.
- Best code-editing AI on this list
- Model-agnostic (Claude, GPT-4o, Gemini)
- Polished UI
- Designed for code, less suited to pure note workflows
- Subscription pricing
Get it if: you code daily and want notes context available in your editor.
Windsurf
Free / Pro $15/moWhat it is. Codeium's MCP-capable IDE. Similar shape to Cursor but with a different design philosophy around the agent UX.
- Generous free tier
- "Cascade" agent mode is excellent
- Cleaner default UI than Cursor
- Smaller ecosystem than Cursor
- Younger product, faster-moving = occasional breakage
Get it if: you want Cursor's capability with a different design feel.
Cline
Free / open sourceWhat it is. VS Code extension that turns it into a coding agent with MCP support. Open source, BYO API key.
- Free, MIT-licensed
- BYO any LLM (Claude, GPT, Gemini, local via Ollama)
- Full agent mode
- Less polished than Cursor / Windsurf
- Setup more involved
Get it if: you want the agent capability without paying a per-seat fee or sending data to a SaaS.
Continue.dev
Free / open sourceWhat it is. Open-source AI assistant for VS Code and JetBrains. Strong MCP support since v0.9.
- Lightweight, doesn't replace your editor
- BYO LLM
- Highly configurable
- Less of an "agent" — more of an assistant
- Fewer built-in workflows than Cursor / Windsurf
Get it if: you love VS Code and just want AI features added.
Zed
FreeWhat it is. Native Rust-based editor (Atom team's follow-up). Added MCP support in 2025. Blazing fast, beautifully designed.
- Native, faster than anything Electron-based
- Beautiful collaboration features
- Free
- Smaller community than VS Code-based options
- MCP support is newer
Get it if: performance matters and you want a clean break from VS Code.
Building or installing MCP servers.
The interesting part of MCP is the servers, not the clients. A few servers worth knowing:
- Filesystem — official, generic read/write access to a folder.
- Git — query and modify git repos.
- Postgres / SQLite — let Claude run queries against your databases.
- GitHub — search repos, read issues, propose PRs.
- Eyrie — purpose-built for Markdown vaults: semantic search, backlinks, tag aggregation, diff-before-write edit proposals.
Eyrie's MCP server is what we think the "right shape" looks like for notes: it understands what a vault is (not just files), exposes tools that map to how knowledge workers actually think, and ships an approval UI so edits don't happen silently.
Privacy and the trust model.
Every MCP tool call sends data to the AI client's backend. If you're using Claude Desktop, that means Anthropic's servers see whatever your tools return. This is the same trust model as any AI integration — there's no magic privacy-preserving layer in MCP itself.
If that matters to you:
- Scope your MCP server to a subdirectory that excludes sensitive notes.
- Use a local LLM via Cline or Continue + Ollama — the AI runs on your machine, nothing goes to a cloud API.
- Use a server that supports per-tool ACLs (Eyrie does this for write operations).
Try MCP without the JSON.
Eyrie's "Install in Claude Desktop / Cursor / Windsurf" button is the no-config path. 14 days free.
Try Eyrie for Mac →