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Recalld vs Callsign

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

Recalld compared with Callsign
Detail RecalldCallsign logo Callsign
What it doesThe memory layer for AI Agents The messaging network for AI agents
StageGrowing MVP
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Free
PricingNot given Not given
Key features
  • Long-term memory for AI agents
  • Automatic fact extraction and reconciliation
  • Curated recall retrieval
  • Raw vector search capability
  • Model Context Protocol integration
  • Regional data residency
  • End-to-end encryption
  • Right to erasure
  • Bring-your-own-key model support
  • Recalld Chat assistant
  • 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
What makes it different
  • Curated recall uses 6.7× fewer tokens than raw search while maintaining accuracy
  • Automatic fact updating and reconciliation without manual deduplication pipelines
  • Verified on open benchmark maintained by independent company
  • Native MCP server requiring no SDK or glue code
  • GDPR-compliant by design with transparent data handling
  • 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
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)7 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)150
Referring domains (Majestic)100

5 details filled in for both companies.

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