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Alexein vs Guardian

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

Alexein compared with Guardian
DetailAlexein logo AlexeinGuardian logo Guardian
What it doesMemory for AI agents and the people using them Human authority infrastructure for autonomous AI
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: 10,000 events and 1,000 retrievals per month. Starter: $13/month for 50,000 events and 5,000 retrievals. Pro: $100/month for 500,000 events and 50,000 retrievals. Scale: $399/month for 2,500,000 events and 250,000 retrievals. Enterprise: Custom pricing. Free: $0 per month with 2 connections, 1 agent, 500 protected actions per month. Developer: $99/month with 25,000 billable executions included, then $0.001 per billable execution with $500 default overage cap. Business: Contact Sales for paid pilots and enterprise contracts.
Key features
  • Search memory with dates and sources
  • Memory history and item versions
  • Data erasure with receipt
  • Correct and edit facts
  • Works with Claude, ChatGPT, Cursor and GitHub Copilot
  • Integrates with LangGraph, CrewAI and OpenAI Agents SDK
  • Connect to Slack, Notion, Linear, Jira and GitHub
  • Hosted MCP server
  • Item expiry
  • Cryptographically signed receipts and verifiable evidence
  • Multi-party approval for organizational authority
  • Open-source SDK, MCP server, and framework adapters
  • Authority lifecycle management from grant to revocation
  • Supported integrations with payments and cloud accounts
  • Individual, family, business, and enterprise deployment options
  • Enforcement at tool execution boundaries
What makes it different
  • Reduces token usage while improving context accuracy
  • Privacy and data control built in, not bolted on
  • Nothing is dropped when limits are reached
  • Write-once signed decisions verifiable by auditors without trusting the vendor
  • Controls sit at the point where AI systems take consequential actions
  • One company integrating security and compliance disciplines
  • Open-source cores and published research allow vendor review
  • Human authority never transferred to the agent
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)10 +7 (up) since last check3 no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)1226
Referring domains (Majestic)318

5 details filled in for both companies.

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