Remote MCP server or local one: which should you use?

In short

A local MCP server runs on your computer, a remote one on a provider's servers. What changes for setup, updates and security, and what Claude and ChatGPT use.

By FezolaPublished November 14, 20262 min read

On this page

A local MCP server runs on your own computer, while a remote one runs on a provider's servers and you reach it with a URL. Pick remote when you want to paste a link, sign in and use it from any device; pick local when the tool must touch files or programs on your machine. Updated on 14 November 2026; plan details were checked on 9 November 2026.

How to choose, in four steps

Ask what the tool needs to reach. Files, a database or a program on your computer point to local. A web service such as email, a calendar or an ad account points to remote.
Check what your assistant accepts. Claude accepts custom connectors on every plan, with one connector on the Free plan. ChatGPT accepts custom MCP servers on Business and Enterprise/Edu plans, with Pro read-only. See how to add a custom connector to Claude and how to add an MCP server to ChatGPT.
Weigh the upkeep. A local server is installed, started and updated by you. A remote one is run and updated by its provider.
Check the access. Whatever you pick, look at what it can read, whether it can write or send, and how you revoke it.

The two ways MCP connects

According to the official MCP documentation, MCP supports two kinds of connection:

Local (stdio): the server runs on your computer, started by the application. It usually serves one application, and nothing leaves your machine except what the server itself sends.
Remote (Streamable HTTP): the server runs on a provider's infrastructure and serves many users. This is what you use from the web version of an assistant, with a URL. MCP recommends OAuth to sign in, so you approve access on a consent screen and never hand your password to the assistant.

Limits and what changes by plan

ChatGPT on the web needs a remote URL: a server that only exists on your computer is not reachable from it.
Plans differ. Check your assistant's plan before you plan the setup.
Remote means trust. You rely on the provider to run the server and protect your data, so check how access is granted and revoked.
Local means upkeep. You install updates and keep the server running.

An example: email

Email is a web service, so a remote server fits. Fezola is a hosted, remote MCP connector for mailboxes, calendars, ad accounts and more: you add accounts once, then paste one URL into Claude or ChatGPT. See what is an email MCP server and best MCP servers for Claude and ChatGPT.

More on the connectors page and in the FAQ. New to MCP? Start with what is MCP. Source: Model Context Protocol, introduction.

Questions and answers

What is the difference between a local and a remote MCP server?

A local MCP server runs on your own computer, started by the application, and usually serves one application. A remote MCP server runs on a provider's infrastructure, can serve many users, and typically asks you to sign in with OAuth.

Which one should I choose?

Choose a remote server if you want to add a connector by pasting a URL, use it from several devices and avoid installing anything. Choose a local one if you need access to files or tools on your own machine.

Does ChatGPT accept local MCP servers?

ChatGPT custom connectors point to a remote server URL, and they are available on Business and Enterprise/Edu plans, with Pro read-only, according to OpenAI's help page checked on 9 November 2026. A server that only runs on your computer is not reachable from ChatGPT on the web.

Is a remote server less safe?

Not by nature. What matters is what the server can read and change, who runs it, how you sign in and how you revoke it. A remote server asks you to trust its operator, while a local one runs with the rights of your own computer.

Is Fezola local or remote?

Remote. Fezola is hosted, so you paste one URL into Claude or ChatGPT and install nothing. It cannot reach a server that only exists on your computer.