AI deep research API that checks every cited claim against its source
Stage
Not given
Startup
Founded
Not given
2026
Based in
SE
US
Pricing model
Not given
Paid
Pricing
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
Not given
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
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
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
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
VitalSend™
Hyperresearch