Pricing

Subscription and usage options for individuals, teams, and platforms.
Note: Public verification (checking any certificate by ID) is always free for everyone. Pricing applies to file uploads that create new certificates.
Free — Public Uploader
£0
/ forever
✓
1 file upload per day (up to 10 MB)
✓
Certificate retention: 7 days
✓
Anyone can publicly verify certificates (always free)
—
No API access
Upload a file Or verify an ID →
Pro
£49
/ month
✓
100 verifications / month
✓
Signed JSON + PDF certificate
✓
12-month retention
✓
Personal API key
✓
Email support (48 h)
Overage: £0.75 per extra verification
Choose Pro
Legal & Claims
£299
/ month
✓
1,000 verifications / month
✓
Legal-grade PDF bundles
✓
3-year retention
✓
Per-client API tokens
✓
Case grouping & timeline
✓
Priority support (same-day)
Overage: £0.50 per extra verification
Choose Legal & Claims
Enterprise
£1,000–£3,000
/ month (custom)
✓
10,000+ verifications / month
✓
Private sub-root signing key (JWKS)
✓
Audit API & webhooks
✓
On-prem / hybrid options
✓
24/7 TAM & SLA
Contact Sales

API-only (Pay-as-you-go)

For platforms embedding CanonProof without a subscription.
Monthly volumePrice per verificationIncluded
≤ 1,000£1.00Signed JSON certificate, 12-month retention
1,001 – 10,000£0.75Signed JSON certificate, 12-month retention
10,000+£0.50Signed JSON certificate, 12-month retention
Get API key Try Public Verify

Optional add-ons

Extended Retention
+£0.05 / file / month — keep certificates & metadata beyond base term.
Private JWKS
£500 setup — organization-scoped signing keypair under CanonProof root.
Custom Report Branding
£99 / month — organization seal & custom footer.
Chain-Anchoring
£1 / certificate — anchor certificate hash to public ledger.
Bulk Export & Audit API
£199 / month — programmatic logs & compliance exports.

All prices in GBP. Taxes may apply. You can switch plans or cancel anytime.