Pricing
Evidence you can defend. Priced for the stakes.
The independent, out-of-band forensic witness for AI and automated decisions – zero-knowledge infrastructure outside your organisation's systems. You own the evidence and the key; your auditors verify offline with no account and no trust in the platform. Pricing is an annual licence plus metered per-decision usage, scoped per engagement – contact sales for a quote.
Enterprise
We operate the vault. You own the evidence.
Custom – contact sales
The independent, out-of-band forensic witness for AI and automated decisions – zero-knowledge infrastructure that sits outside your organisation's systems. Hosted, backed-up, monitored and supported by Decision Keep. You own the evidence and the key; your auditors verify offline on your key with no account and no trust in the platform. Scoped per engagement around volume, recording model, region and required compliance controls across AU, US, UK and European markets.
Recording models
- ✓ Operator-signs – we sign on your behalf, outside your systems
- ✓ Custodian – we host, you seal payloads to your key (zero-knowledge: we never see plaintext)
- ✓ Client-signs – you sign in your own environment (zero-knowledge: private key never leaves your environment)
Included
- ✓ Signed with your own key + offline verification (no account, no trust in the platform)
- ✓ Immutable, tamper-evident record chain (append-only – never edited or deleted)
- ✓ Verifiable erasure (record anchor preserved)
- ✓ Backups, monitoring and operator-backed support
Also available
- ✓ DPA and compliance export mapped to APP 1.7–1.9
- ✓ EU AI Act and GDPR compliance tooling
- ✓ Advanced key management and HSM-backed signing
- ✓ Independent eIDAS-qualified trusted time
- ✓ Dedicated region and named account team
At a glance
- • Signed with your own Ed25519 key; verified offline against your published key with no account.
- • Receipts use the frozen, open dkr-1 format - verifiable forever, no proprietary lock-in.
- • Append-only ledger: entries are added, never edited or deleted.
- • Zero-knowledge options (Custodian, Client-signs) - we never see plaintext payloads.
Feature comparison
Base package vs add-ons
The Enterprise base package includes the core platform. Additional compliance workstreams are scoped per engagement.
| Feature | Base Enterprise | Add-on |
|---|---|---|
| Operator-signs recording | Included | - |
| Custodian recording (zero-knowledge) | Included | - |
| Client-signs recording (true witness) | Included | - |
| Immutable tamper-evident chain | Included | - |
| Offline verification & public verifier | Included | - |
| Operator-backed support & backups | Included | - |
| SOC 2 Type II audit | - | Scoped workstream |
| HSM-backed key management | - | Scoped workstream |
| eIDAS-qualified trusted time | - | Scoped workstream |
| Dedicated region & named account team | - | Scoped workstream |
Not sure where to start?
Book a demo and we'll map Decision Keep to your automated-decision obligations under frameworks such as the EU AI Act and GDPR, and show the evidence trail end to end.
Book a demoHow your keys are held
Choose who holds the key
Decision Keep is operated by us and verified offline against your published key. The recording model is selectable per workspace – pick the custody posture your risk team requires.
Operator-signs (default)
We hold your org key and sign on your behalf; the ledger is hosted by us. Simplest onboarding – like a flight black box sealed by the manufacturer. We cannot forge or alter your receipts.
- ✓ Simplest onboarding
- ✓ Hosted by Decision Keep
- ✓ We hold the signing key
Custodian (recommended)
We host the ledger, but your payload is sealed to your published key – we never see it in plaintext and never hold the key to read it. You get our assurance without our custody.
- ✓ Zero-knowledge posture
- ✓ We never see plaintext
- ✓ Your key, your control
Client-signs (true witness)
You sign the content hash in your own environment; the raw payload never reaches us. Maximum independence for the most regulated buyers.
- ✓ Maximum independence
- ✓ Private key never leaves your environment
- ✓ Raw payload never reaches us
| Capability | Operator-signs | Custodian | Client-signs |
|---|---|---|---|
| Signing key held by | Decision Keep | You (published) | You (never shared) |
| Plaintext visibility | Visible to Decision Keep | Never visible | Never visible |
| Ledger hosting | Decision Keep | Decision Keep | Your choice |
| Best for | Fastest onboarding | Zero-knowledge requirement | Maximum sovereignty |
| Offline verification | Yes | Yes | Yes |
FAQ