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fractal vs ActionBox

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

fractal compared with ActionBox
Detail fractalActionBox logo ActionBox
What it doesLong-term memory for AI agents that organizes itself and corrects itself Human approval infrastructure for AI agents and automation workflows
StageMVP Not given
FoundedNot given Not given
Based inSE Not given
Pricing modelFree Freemium
PricingPersonal: 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. Developer: Free forever with 250 Actions/month, 3 Sources, 3 Watches, 7-day history. Pro: $10/month ($120/year, save 17%) with 1,000 Actions/month, unlimited Sources, 20 Watches, 30-day history, additional Actions at $8 per 1,000-pack. Team: $49.17/month ($590/year, save 17%) with 5,000 Actions/mont
Key features
  • 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
  • Typed decisions (Boolean, choice, text, number, rating, structured forms)
  • Heartbeat Watches for silent-work detection
  • Action Controls for safe follow-up operations
  • Multi-surface inboxes (web, mobile, Slack, CLI, MCP)
  • Model Context Protocol (MCP) integration
  • Signed receipts and durable decision history
  • Mobile app for iOS (15+) with push alerts
  • Slack approval integration (Beta)
  • CLI with bounded long-poll waiting
  • Integration guides for GitHub Actions, n8n, LangGraph, OpenAI Agents SDK
What makes it different
  • 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  • Never contradicts itself by automatically replacing outdated facts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
  • Durable decision records that survive client disconnections and restarts
  • Reduces median approval time significantly in production environments
  • Unified API across multiple approval surfaces without building custom dashboards
  • Source-scoped identity for independent credential rotation across runners
  • Built-in monitoring for stalled background work with heartbeat watches
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 check5 no change since last check
Trust Flow (Majestic)07
Citation Flow (Majestic)024
Referring domains (Majestic)042

5 details filled in for both companies.

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