Context Engine vs Guardian

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

Context Engine compared with Guardian
Detail	Context Engine	Guardian
What it does	One memory for your AI agents and your team	Human authority infrastructure for autonomous AI
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: $0 forever with 1 agent per engine (up to 3 when friends refer), 1 GB memory. Pro: $12/month or $99/year per engine with 10 agents and 25 GB memory. Unlimited: $39/month or $299/year per engine with unlimited agents and 100 GB memory. Enterprise: from $6,000/year per install on your own server	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	Connect ChatGPT, Claude, Claude Code and Cursor with a few clicks AI tools save decisions, notes, people, customers and files Search with semantic understanding, not just exact words Automatic summaries by day, week and month Link related memories automatically Prevent duplicate memories with deduplication Export all data as Markdown and JSON Separate engines for clients with no data crossing Fine-grained access control (read or read-and-save) Full history tracking for every change	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	Keeps AI tools from forgetting context between sessions Data isolated per engine with no sharing between customers Fully portable—export anytime or delete permanently Pay per engine, never per person added to team	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 plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	14 −1 (down) since last check	3 no change since last check
Trust Flow (Majestic)	13	0
Citation Flow (Majestic)	28	26
Referring domains (Majestic)	32	18

5 details filled in for both companies.

More alternatives to Context Engine More alternatives to Guardian