Claude can connect to your tools in two ways: through the web (remote connectors) or through the Claude Desktop app (desktop extensions). Most connectors are remote—they're the default choice and work everywhere you use Claude.
Use a remote connector when
The tool is a cloud service you sign into (Slack, Notion, Linear, GitHub, your company's SaaS)
You want the connector available everywhere—web, mobile, Cowork, Desktop, and Claude Code
You're connecting something from the Connectors Directory
Remote connectors work across all Claude surfaces. Once connected, they're available everywhere without extra setup.
Use a desktop extension when
The tool runs on your computer—local files, a database on localhost, a desktop application
The tool needs OS-level access (filesystem, clipboard, local processes)
There's no cloud version to connect to
Desktop extensions run locally and are only available in Claude Desktop and Claude Code—not on web or mobile.
Plugins work with both
A plugin can bundle either remote or local MCP servers (or both). Installing a plugin that references a remote MCP makes it available everywhere; one that references a local MCP works in Desktop and Claude Code.
Quick guide
Your tool is… | Use | Available on |
A cloud/SaaS product | Remote connector | All surfaces |
In the Connectors Directory | Remote connector | All surfaces |
Running on your machine | Desktop extension | Desktop, Claude Code |
A local file or folder | Desktop extension | Desktop, Claude Code |
Something you built with a public URL | Remote connector (add as custom) | All surfaces |
Something you built that runs locally | Desktop extension | Desktop, Claude Code |
Get started
Browse and add remote connectors: Settings → Connectors or the Connectors Directory
Install a desktop extension: Open Claude Desktop → Settings → Extensions
Building your own? See the connector building docs for remote connectors or the MCPB guide for local ones.