Sickle vs Zipline
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Sickle compared with Zipline
| Detail | 
Sickle | 
Zipline |
|---|
| What it does | Email MCP server for Claude, Cursor and other AI agents to access every mailbox you own
| One thread for every AI assistant you use
|
|---|
| Stage | Not given
| MVP
|
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| Founded | Not given
| Not given
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| Based in | GB
| IE
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| Pricing model | Free trial
| Free trial
|
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| Pricing | Monthly: €8.99/month after 7-day free trial. Yearly: €30/year (€2.50/month equivalent, 72% savings). Includes both the Mac app and the MCP connector.
| Not given
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|---|
| Key features | - Search across multiple mailboxes simultaneously
- Read full email threads with conversation history
- Move, archive and mark emails as read
- Scoped permissions: read, change, and send separately
- Attach files up to 18 MB to drafts and emails
- Download and open email attachments
- Native macOS mail client included
- Support for multiple email providers
- Encrypted file handling during transfer
- Revoke access anytime within the hour
| - TypeScript SDK
- MCP server integration
|
|---|
| What makes it different | - Works with any MCP client, not locked to one AI platform
- No installation required; works on macOS, Windows and Linux
- Access unlimited email accounts simultaneously in one connection
- Send emails with opt-in permission and approval workflow
| - Single conversation thread across multiple AI assistants
- Works in native AI assistant apps without switching
- Uses open standard MCP for integrations
- Automatic task pickup for Claude and Grok
- Full user control with pause and revoke options
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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 13 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 8 | 0 |
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| Citation Flow (Majestic) | 22 | 15 |
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| Referring domains (Majestic) | 17 | 3 |
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5 details filled in for both companies.
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