Monolithos vs Stacktrace

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

Monolithos compared with Stacktrace
Detail	Monolithos	Stacktrace
What it does	Personal Agent OS built from memory you own	Real-time steering and guardrails for AI agents
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Not given	Team: Free per organization, unlimited users, 200 session-hours per month. Enterprise and Gateway: Custom pricing, billed annually.
Key features	User-owned memory in Markdown and YAML Eight modules: Memory, Flow, Black Hole, Minutes, Codex, Prism, Audio, Facet Multi-step AI tasks with human approval checkpoints Meeting transcription sealed into memory Markdown-to-presentation generation with Prism Audio generation from notes Visual asset library with provenance tracking Private domain boundaries to exclude content from cloud AI Project mode to bind files and conversations into sealed context Compatible with existing Obsidian vaults without migration	Reads every tool call agents make and blocks unsafe ones before they run Catches stalled and runaway sessions while they run Steers agents back when they go past what was asked Tracks every session's tokens against usual usage Stops credential and data leaks before they leave the machine Inventories all agents, MCP servers and skills in use Blocks dangerous calls before they run in agent hooks and at the gateway Sends every finding to Slack, webhook or SIEM Verifies each agent's identity before access Keeps audit-grade masked records of every action and decision
What makes it different	Memory and data remain on your device and under your ownership, never used for model training Files stay readable as plain Markdown and YAML with any text editor; no vendor lock-in possible Works with existing Obsidian vaults natively without import or conversion Private-domain content stays out of cloud AI context automatically AI recall includes sources so you can see what answers are based on	Works with Claude Code, Codex, Cursor, Devin and more Runs on your machines, gateways and in the cloud Active steering corrects or stops drifting runs One policy applied across all MCP servers, plugins and skills Continuously monitors components for known vulnerabilities
Community votes	0	0
DR (Domain Rating by Ahrefs)	3 no change since last check	3 +2 (up) since last check
Trust Flow (Majestic)	9	13
Citation Flow (Majestic)	21	25
Referring domains (Majestic)	22	23

4 details filled in for both companies.

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