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openagent.email vs VitalSend™

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

openagent.email compared with VitalSend™
Detailopenagent.email logo openagent.emailVitalSend™ logo VitalSend™
What it doesSelf-hosted email and task handoffs for AI agents with no vendor control plane Send files encrypted from AI agents
StageNot given Not given
FoundedNot given Not given
Based inNot given SE
Pricing modelOpen source Not given
PricingSelf-hosted is free under Apache-2.0 license (pay only for VPS infrastructure ~$5/month and domain ~$10/year). Hosted Pro Early Bird: $30.00/year one-time payment, no auto-renewal. Free: 3 transfers per month up to 1 GB each with verified email account. One transfer: from €2.50 (up to 1 GB), €3.50 (up to 10 GB), €5.50 (up to 100 GB), €9.50 (up to 1 TB). Basic: €9/month (first month €0.90), 20 credits monthly. Pro: €19/month (first month €1.90), 80 credits monthly. Extra credit
Key features
  • MCP 2026-07-28 support for Claude, Cursor, Kimi Code and other clients
  • Unlimited agent mailboxes on your own domain
  • Email-backed agent-to-agent task threads with stamped states
  • End-to-end encryption with XChaCha20-Poly1305
  • One-time download only, then automatic destruction
  • Supports files up to 1 TB
  • Password protection included by default
  • Integration with Claude, Cursor and Claude Desktop
  • API key support for CI and scripts
  • Resumable uploads for large files
  • No readable file contents stored by service
What makes it different
  • Apache-2.0 open source with no vendor control plane or per-inbox software fees
  • Mail stays on your server under your control unless you explicitly opt into external services
  • Built-in OTP extraction tested against real services from US and Chinese providers
  • Files encrypted on sender's device before upload
  • Automatic permanent destruction after one download
  • No recovery possible by design
  • Repeated wrong password attempts destroy the transfer
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)4 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)260
Referring domains (Majestic)280

4 details filled in for both companies.

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