Inbox Zero

About Inbox Zero

Inbox Zero is an open-source AI email assistant for Gmail and Outlook. Its MCP server lets Claude search your mailbox, save reply drafts, manage the rules that tell Inbox Zero how to handle your email, and show your email statistics. Ask Claude to find the thread with a client, draft a reply in your tone or add a rule in plain English, such as "archive newsletters I never open". Example requests: "Find my last exchange with the accountant and draft a reply confirming Thursday", "Add a rule: label invoices as Finance and archive them", "How many emails did I receive per day this month?". Inbox Zero also offers reply tracking, bulk unsubscribe and archiving, a cold email blocker, attachment organising and meeting briefs. It can be used hosted or self-hosted.

What it can do

The creator has not described the access yet.

Install Inbox Zero in Claude

An MCP connector links Claude to a service: Claude can then read or do things there for you, with your consent. It takes about two minutes.

1. 1Add it to your libraryClick “Add to my library” on this page: it is free and instant.
2. 2Copy the connector URLIn your library, select the product: its URL is shown with a “Copy” button.
3. 3Add it in ClaudeIn Claude (website or app), open Settings › Connectors, click “Add custom connector”, give it a name and paste the URL.
4. 4Connect your accountIf the service asks you to sign in (your Notion, GitHub… account), Claude opens its page: only grant the access you need.
5. 5Use it in a conversationTurn the connector on in the conversation’s tools menu, then just ask for what you want.

Before adding a product, read its permissions above. You can remove a connector or skill at any time in Claude’s settings.

Inbox Zero: frequently asked questions

Is Inbox Zero free?

Yes. Inbox Zero is free: add it to your Claude Market library, no bank card needed.

How do I install Inbox Zero in Claude?

Add Inbox Zero to your library to get its URL. In Claude, open Settings › Connectors, click “Add custom connector” and paste the URL.

Does Inbox Zero work with Claude Code?

Yes. In a terminal, run claude mcp add --transport http followed by a name and the connector URL.

Is Inbox Zero an official Anthropic product?

No. Inbox Zero is a public project; this listing was created by Claude Market from its repository and the product is not hosted here. Claude Market is an independent project, not affiliated with Anthropic.

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