Claude connectors: what they are, how to add one, which plans, the best ones

In short

Claude connectors link Claude to outside tools: built-in ones such as Gmail, and custom ones for any remote MCP server, added from Customize, Connectors.

By FezolaPublished November 15, 20262 min read

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Claude connectors link Claude to outside tools and data: your mail, calendar, notes or ad accounts. Some are built in, and others are custom connectors that you add by pasting the address of a remote MCP server, from Customize, then Connectors. This guide sums up what exists, how to add one and which plans allow it, from Anthropic's help pages read on 14 November 2026; check them for changes.

The kinds of Claude connectors

Checked 11 to 14 November 2026.
Kind	Example	Who sets it up	Limit
Built-in, Google	Gmail	You, with Google sign-in	Reads attachment metadata only
Built-in, Microsoft	Microsoft 365	A Microsoft admin, then the organization	Work and school accounts
Custom, remote MCP server	Fezola, Notion, Zapier	You, or an owner on Team	Plan limits apply

The Gmail connector can search and read email and, with your approval by default, draft, send, reply and forward, according to Anthropic's Google Workspace connectors article. The Microsoft 365 connector is set up for work and school accounts and needs one-time admin consent: see Microsoft 365 and Outlook with Claude and ChatGPT.

How to add a custom connector

Open Customize, then Connectors.
Choose Add, then Add custom connector.
Name it, paste the remote MCP server's URL and sign in.

The detailed menus, removal and troubleshooting are in how to add a custom connector to Claude, based on Anthropic's help page.

Which plans allow it

Custom connectors are available on Free (one connector), Pro, Max, Ultra, Team and Enterprise. On Team only owners add a connector to the organization, and members then connect individually. The full comparison with ChatGPT is in which plan you need.

On the Free plan, Anthropic's help page says free users are limited to one custom connector (checked 15 November 2026). A single connector that brings many services behind one URL, like Fezola, therefore fits that limit well: Fezola is free for 2 sources.

Several accounts and the best connectors

Several pages say the built-in Gmail connector links one Google account at a time, while Anthropic is rolling out several accounts gradually, so check your settings: see multiple Gmail accounts and one connector, every Claude account. For what to connect, see the best MCP servers by job.

One connector for your mailboxes and more

Fezola is a hosted custom connector: you connect Gmail, iCloud, any IMAP mailbox, Outlook.com, calendars and other tools once, then add one URL to Claude, and the same URL works in ChatGPT. Replies are drafts by default. It is free for 2 sources; Pro is unlimited for $9 a month or $90 a year, with a 7-day free trial.

Create your free Fezola account to get your connector URL.

Questions and answers

What are Claude connectors?

Connectors let Claude use outside tools and data, such as your mail, calendar or notes. Some are built in, such as the Gmail connector described in Anthropic's help articles, and others are custom connectors you add by pasting the address of a remote MCP server.

How do I add a connector to Claude?

For a custom connector, open Customize, then Connectors, then Add, then Add custom connector, name it, paste the server's URL and sign in. Anthropic's help page was read on 14 November 2026; menus can change.

Which Claude plans allow custom connectors?

According to Anthropic's help page read on 14 November 2026: Free (one custom connector), Pro, Max, Ultra, Team and Enterprise. On Team only owners add one to the organization.

Can I use several accounts of the same tool?

The built-in Gmail connector links one Google account at a time according to several pages, though Anthropic is rolling out several accounts gradually. A hosted connector such as Fezola connects several accounts behind one connector.

What are the best Claude connectors?

The ones that match a job you do every week and that you can control. See our list of MCP servers by job, which covers mail, calendar, notes, ads, SEO and social media.