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Busabase vs fractal

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

Busabase compared with fractal
DetailBusabase logo Busabase fractal
What it doesThe open-source database and workspace for AI agents Long-term memory for AI agents that organizes itself and corrects itself
StageNot given MVP
FoundedNot given Not given
Based inNot given SE
Pricing modelNot given Free
PricingFree: $0 (1 space, 3 seats, 5,000 records, 1 GB storage). Plus: $10/seat/month ($120/year, 2 months free) for 3 spaces, 10 seats, 20 GB storage. Pro: $20/seat/month ($240/year, 2 months free) for unlimited spaces, unlimited seats, 100 GB storage. Personal: Free during early access. Unlimited memories, all agents with separate memories, no card required. Enterprise: On request, set up by the team for departmental organization with cross-department sharing and direct support.
Key features
  • Open source MIT license - run locally, self-host on server, or use cloud
  • Support for multiple agents via REST API, MCP, Agent Skills, and OpenAPI
  • Human review and approval workflow for agent changes
  • Structured data tables with fixed columns for agents and people to share
  • Docs and knowledge base with verified sources
  • Reusable agent skills and playbooks
  • Apps and views built on shared data structures
  • Role-based permissions and access controls
  • Offline support on desktop with no usage tracking
  • Self-correcting memory that updates when facts change
  • Historical memory queries with time-based retrieval
  • Automatic topic organization and hierarchy
  • Separate memory for each agent with controlled sharing
  • Multi-agent support via MCP, REST API, or LangGraph
  • AES-256 encryption at rest and in backups
  • OAuth 2.1 authentication and API key management
  • Data export and deletion capabilities
  • 37 MCP tools with automated verification on every code change
What makes it different
  • Only AI agent workspace that keeps complete history and requires human approval before changes enter canonical data
  • Unified workspace where agents and people access the same data, avoiding scattered chat logs
  • Completely self-hosted and private on your own hardware with full control over data
  • Works with any agent that calls REST API - no lock-in to specific model or platform
  • Rejects never enter canonical data - all decisions remain attached for auditability
  • Understands what changed, when it was true, and where it belongs - beyond vector database similarity
  • Never contradicts itself by automatically replacing outdated facts
  • Fully GDPR aligned with built-in privacy by design
  • Two-minute integration with Claude, ChatGPT, Cursor and any MCP client
  • Data stays in Europe on AWS eu-north-1 and never used for model training
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)17 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)60
Citation Flow (Majestic)320
Referring domains (Majestic)1430

4 details filled in for both companies.

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