Skip to main content
NexoraLaunch home

Build log live

Sickle vs Rayrun

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 Rayrun
DetailSickle logo SickleRayrun logo Rayrun
What it doesEmail MCP server for Claude, Cursor and other AI agents to access every mailbox you own One endpoint for every MCP tool
StageNot given Not given
FoundedNot given Not given
Based inGB US
Pricing modelFree trial Freemium
PricingMonthly: €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. Free for one developer with up to 25 source-built services, 50,000 tool calls a month, then $0.20 per thousand. Team plan is $25 per developer per month with 100,000 tool calls per developer a month, pooled, then $0.20 per thousand. Enterprise from $1,500 per month.
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
  • Source-built servers with TypeScript or Python projects
  • Remote MCP, OpenAPI, npm package, and container image support
  • Per-tool and per-argument access control policies
  • Tool definition review and approval workflow
  • Content scanning with literal and regex detectors
  • Activity tracking and audit trails
  • OIDC and SAML 2.0 single sign-on
  • SCIM 2.0 provisioning
  • Workspace-specific data encryption
  • Custom domain publishing with DNS and Cloudflare certification
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
  • One endpoint replaces every client config, eliminating need for each client to store every server and secret
  • Coding agent builds the server automatically with no adapter needed
  • Credentials held once by Rayrun instead of distributed across clients
  • Built-in security review with published controls and audit trails for compliance teams
  • Support for multiple service types without writing adapters
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)13 +1 (up) since last check45 no change since last check
Trust Flow (Majestic)812
Citation Flow (Majestic)2236
Referring domains (Majestic)17125

6 details filled in for both companies.

More alternatives to Sickle More alternatives to Rayrun

Ask a question