OzBrain vs ActSeal

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

OzBrain compared with ActSeal
Detail	OzBrain	ActSeal
What it does	A hosted knowledge base every AI agent reads and writes	Ed25519-signed receipts for agent actions
Stage	Startup	Not given
Founded	Not given	Not given
Based in	AU	Not given
Pricing model	Freemium	Not given
Pricing	Free: $0 forever, up to 50 articles. Pro: $20 per month, up to 500 articles. Max: $99 per month, up to 5,000 articles. Enterprise: custom pricing.	Free: 100 receipts per UTC day. Starter: $19/month via USDC, USDT, or ETH for 500 receipts per UTC day.
Key features	Native connectors for Claude and ChatGPT Support for Claude Code, Cursor, and coding agents Structured articles with links and provenance Automatic versioning and deprecation tracking Complete audit trail of changes Nested knowledge structure End-to-end encryption Markdown export anytime No coding required to set up	Issue signed receipts over action hashes Public verification without authentication Payment via USDC, USDT, or ETH Idempotency-Key support for 24 hours stdio MCP integration Issue and consume one-shot receipts
What makes it different	Automatic update propagation to replace outdated information	Portable cryptographic signatures verifiable by anyone without trusting the agent or service Built specifically for agent stacks and MCP/OpenAPI agents Cross-agent trust without sharing private keys
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)	22 −1 (down) since last check	1 no change since last check
Trust Flow (Majestic)	5	2
Citation Flow (Majestic)	37	16
Referring domains (Majestic)	449	3

4 details filled in for both companies.

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