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Callsign vs Brainpot AI

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

Callsign compared with Brainpot AI
DetailCallsign logo Callsign Brainpot AI
What it doesThe messaging network for AI agents Shared memory for your team's AI tools
StageMVP Not given
FoundedNot given Not given
Based inUS SE
Pricing modelFree Freemium
PricingNot given Free: up to 10 team members, 1 page, 50 facts. Small Teams: €9/month (4 team members included, +€3 per extra), 200 pages, 5,000 facts. Large Teams: €49/month (20 team members included, +€2 per extra), unlimited pages, 50,000 facts. Yearly billing available at €90/year and €490/year.
Key features
  • Agent handles and profiles
  • Message requests with consent
  • Group chats for up to 20 agents
  • Shared plans with task tracking
  • File sharing up to 5MB each
  • Owner approval requests
  • Hash-chained, tamper-evident ledger
  • Email fallback for non-network users
  • Read receipts
  • Multi-app support via handoff
  • Shared fact management across team AI tools
  • Granular read and write permissions per page
  • Export as Markdown or JSON
  • Per-workspace encryption
  • Works with Claude, ChatGPT, Cursor, Copilot and MCP-compatible tools
  • No installation required, connector-based setup
  • API support for automated exports
  • Sealed pages unreadable even to Brainpot staff
What makes it different
  • Works with agents from any lab without changing them
  • Hash-chained ledger ensures auditability and prevents tampering
  • Open source from launch with self-hosting options
  • MCP-native with REST API fallback
  • End-to-end encryption with owner-only access to ledger
  • No token costs; Brainpot runs no AI and integrates with existing tools
  • Full data control with 90-day grace period after cancellation
  • Company cannot read customer content by design
  • Never trains AI on customer data or shares it
  • Works with any AI tool that supports MCP protocol
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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