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VitalSend™ vs Harny

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

VitalSend™ compared with Harny
DetailVitalSend™ logo VitalSend™Harny logo Harny
What it doesSend files encrypted from AI agents Agent harness infrastructure that gives AI agents memory for each user, connected accounts, action limits and an audit record.
StageNot given Not given
FoundedNot given Not given
Based inSE CA
Pricing modelNot given Freemium
PricingFree: 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 Free: first 500 monthly-active end users per month, free forever. Paid: $0.30 per monthly-active end user above 500, billed monthly.
Key features
  • 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
  • Timestamped memory ingestion with backdating capability
  • Per-user data isolation and privacy scoping
  • Ranked memory recall with dated evidence
  • Connected accounts integration per user
  • Long-running agent jobs with folder-level operations
  • Configurable token ceiling per API call
  • Enforced action limits on agent operations
  • Complete action audit trail with hash chaining
  • MCP server integration for Claude and other clients
What makes it different
  • 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
  • Highest published BEAM benchmark score at 128K tokens: 85.1, compared to competing memory systems
  • 98% fewer tokens required than raw tool output, making responses 4× cheaper
  • Works with 20+ agent frameworks including LangChain, LangGraph and LlamaIndex
  • First 500 monthly-active end users free forever
  • Per-person billing model scales with user growth, not API calls
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)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)00
Referring domains (Majestic)01

5 details filled in for both companies.

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