Sickle · Office #56,018

What it is

Calls itself “Email MCP server”.

• Calls itself: Email MCP server

“Email MCP server for Claude, Cursor & Codex”

Where it puts itself

Rules out “Sickle keeps no copy of your mail”.

• Says it will not: Sickle keeps no copy of your mail

“Sickle keeps no copy of your mail.”

What it costs

Monthly subscription and yearly plan. Free for a trial period. Trial: “7 days”. Prices quoted: £30 /year, £8.99 /month.

• Monthly: yes
• Yearly: yes
• Free plan: free for a trial
• Price: £30 /year · £8.99 /month
• Trial: 7 days

“£30 billed yearly”

“Monthly first 7 days free £8.99 /month billed monthly after the trial”

“…first 7 days free”

How it runs

A desktop app and web app for Linux, Windows and macOS. Hosted in the cloud.

• Kind: desktop · web
• Runs on: Linux · Windows · macOS
• Runs where: cloud / hosted

“The app It comes with a native Mac mail client.”

“Sign in at sickle.app and add your mailboxes there”

What it works with

Names Claude, Codex and 4 more on its pages.

• Names: Claude · Codex · Cursor · +3

“Sickle now runs a remote MCP server, so Claude, Cursor, Codex or any MCP client can work across every mailbox you have at once.”

“Sickle compared with Google’s Gmail MCP server, Claude’s built-in Gmail and Microsoft 365 connectors, Superhuman Mail MCP and an open-source Gmail MCP server.”

What it offers as proof

Live, no waitlist. Trying it asks for a card. Publishes a blog.

• Instant signup: yes
• Trial asks for: a card

“Sign in”

“Checkout takes a card and charges nothing for the first 7 days.”