Tamper-evident audit trail for AI agents with verifiable records
Stage
Not given
Not given
Founded
Not given
Not given
Based in
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GB
Pricing model
Paid
Freemium
Pricing
Not given
Free: £0, no card required, 1 user, 25,000 live records a month. Solo: £19/month or £190/year, 1 user, 100,000 live records a month (then £5 per 100,000). Team: £49/month or £490/year, unlimited users with roles, 250,000 live records a month (then £5 per 100,000, or £3 above 10 million). Enterprise:
Key features
MCP connections to compatible AI agents
Real-time review and accept/reject agent edits
Automatic layout modes and infinite canvas navigation
Local data storage on device
Markdown support in descriptions
Change tracking and recovery
Agent signs each record with its own Ed25519 key
Service co-signs records and chains them to prevent edits or gaps
Public timestamp bounds each record with hourly verification
Only salted hashes sent to service; inputs and outputs stay on your machine
Open verifier code allows independent verification
Python and TypeScript SDKs for wrapping agent tools
Verification reports in HTML or PDF format with compliance mapping
Compliance packs for EU AI Act, ISO/IEC 42001 and SOC 2
99.5% uptime guarantee on hosted witness in Google Cloud London
What makes it different
No built-in AI needed - connect your own agents via MCP with no additional cost
Local-first design - all board data stays on your device
Shared context beyond conversation - the board becomes the reference point for ongoing collaboration
Full control over agent changes with real-time review
Records are verifiable offline and survive service shutdown
Independent co-signature and public time bounds provide proof beyond your control
Content remains private on your machine in hash-only mode
Compliance-ready evidence for regulators and auditors