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Market around Factum

An open-source structured memory system and stdio MCP server for AI agents. It stores provenance-tracked facts, supports querying and retraction, cascades invalidations, and flags conflicting knowledge instead of guessing.

Visit github.com ↗

Explore the market

Prices and medians update for the tier you select.

Compare at
Factum · Pro
No Pro plan
—
Pro-provider median
—
insufficient comparable pricing
vs Pro providers
No comparison
Factum doesn't sell Pro
ⓘ Comparisons are same provider type (provider) and same buyer tier (Pro). Never across tiers.
Market density
64th pctile
308 competing vendors
Comparable listings · 30d
—
MCP servers · Pro median
$55.86/mo
3 priced · —–— mid 50%
Price spectrum · Pro plans · 3 of 6 providers priced · log scale · $35 → $49/mo
MCP servers◻ shaded = middle 50% · line = median (all types)Factum has no comparable Pro price — not plotted

Products in this market

Ranked by how closely each one matches Factum's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.

OOther3Ranked by similarity
Factumthis listing
● OTHER
no public price
OpenViking
● OTHER75% similar
no public price
Recall
● OTHER73% similar
no public price
MMCP servers40Ranked by similarity
Noosphere Lite MCP
● MCP80% similar
no public price
Hierarchical Attention Memory · HFA 2.2
● MCP76% similar
no public price
Memcairn
● MCP76% similar
no public price
memfix
● MCP75% similar
no public price
PMI · Personal Memory Infrastructure
● MCP75% similar
no public price
Friday
● MCP75% similar
no public price
ctxkit
● MCP75% similar
no public price
MM
Mmw
● MCP75% similar
$35/mo Pro
-37% vs Pro median
Linksee Memory
● MCP75% similar
no public price
CogMemory MCP Server
● MCP75% similar
no public price
Arcana
● MCP75% similar
$47/mo Pro
-16% vs Pro median
Xibalba Cortex
● MCP74% similar
no public price
Engineering Continuity Graph
● MCP74% similar
no public price
RE
repo-memory-mcp
● MCP74% similar
no public price
Kiokuko
● MCP74% similar
no public price
MemoryD
● MCP74% similar
no public price
braindump
● MCP74% similar
no public price
Store N Recall
● MCP74% similar
no public price
Memosaver
● MCP74% similar
no public price
AG
agent-memory-api
● MCP74% similar
no public price
AIS
● MCP74% similar
no public price
Helios
● MCP74% similar
no public price
AI Workspace
● MCP74% similar
no public price
Shared Agent Memory
● MCP74% similar
no public price
Mcpalace
● MCP74% similar
no public price
Memwyre MCP Server
● MCP74% similar
no public price
NEXUS
● MCP73% similar
no Pro plan
entry $5/mo
iifa
● MCP73% similar
no public price
gitmem
● MCP73% similar
no public price
Brainfeather
● MCP73% similar
no public price
ME
Meniscus
● MCP73% similar
no public price
Graphmory
● MCP73% similar
no public price
cachly AI Brain
● MCP73% similar
$49/mo Pro
-12% vs Pro median
memdex
● MCP73% similar
no public price
Metronix Memory
● MCP73% similar
no public price
Memory
● MCP73% similar
no Pro plan
entry $2/mo
Noema
● MCP73% similar
no public price
Akyuu
● MCP73% similar
no public price
Mnemo 3
● MCP73% similar
no public price
Agent Memory MCP - Persistent Memory for AI Agents
● MCP73% similar
no Pro plan
entry $49/mo
AAPIs1Ranked by similarity
Mempill
● API77% similar
no public price
FFrameworks5Ranked by similarity
Same
● FRAMEWORK75% similar
no public price
Atlas Memory
● FRAMEWORK74% similar
no public price
Memind
● FRAMEWORK74% similar
no public price
Pensyve
● FRAMEWORK73% similar
no public price
TenseMem
● FRAMEWORK73% similar
no public price
PPlatforms1Ranked by similarity
AI Interchange
● PLATFORM74% similar
no public price

Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.