Sickle vs Hyperresearch
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 Hyperresearch
| Detail | 
Sickle | 
Hyperresearch |
|---|
| What it does | Email MCP server for Claude, Cursor and other AI agents to access every mailbox you own
| AI deep research API that checks every cited claim against its source
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | GB
| US
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| Pricing model | Free trial
| Paid
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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
| - Searches 45+ structured sources including SEC filings, statistics agencies, scholarly indexes, books and government records
- Workspace vault with searchable full-text source storage and independence clustering
- Integrated MCP server for Claude, Cursor, ChatGPT and other clients
- Contradiction mapping identifies and investigates disagreements in evidence
- Automatic report generation with verified citations before shipping
- Citation verification API for external documents
- Markdown import and export for vault documents
- Integrated Answers MCP with ask and search tools for AI agents
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| 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
| - Every cited claim is verified against the original source before report delivery
- Searches structured sources like SEC filings and scholarly databases alongside the open web in one call
- Delivers answers with word-for-word quotes so readers can verify in one click
- Open-source CLI that powers the hosted service, maintaining feature parity
- Pay-as-you-go pricing with no minimum commitment or sales team required
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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 | 32 ▲ +4 (up) since last check |
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| Trust Flow (Majestic) | 8 | 13 |
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| Citation Flow (Majestic) | 22 | 31 |
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| Referring domains (Majestic) | 17 | 71 |
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5 details filled in for both companies.
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