Tamper-proof
evidence.
For humans and AI agents.
Every deal, every automated decision, and every AI agent action.
Sealed as court-admissible evidence.
Problem
Trust is broken in digital transactions
When a deal goes wrong, can you prove what was said, shown, and agreed — before the contract was signed?
AI Agent Liability
When an AI agent makes an autonomous decision, who's responsible? Without a tamper-proof log of every prompt, action, and output, organizations have no defense in court.
Contract Misrepresentation
Parties can alter documents locally and claim it was the agreed version. A hash chain makes every state immutable and provable.
No Audit Trail
Courts require a verifiable chain of custody. A database timestamp alone won't hold up. Cryptographic audit trails will.
How It Works
Three steps to verifiable truth
Integrate
Install the official JavaScript or Python SDKs, or call the REST API directly.
Record
Events are immediately hashed, chained to the previous state, and immutably stored.
Prove
Generate portable, verifiable proofs that can be validated by anyone, anywhere.
Developer Experience
Official SDKs for JavaScript, Python, and Java
Record tamper-proof events in 3 lines of code. Install, initialize, ship.
// npm install @getshield/[email protected]
import { ShieldClient } from "@getshield/js";
const client = new ShieldClient("sk_live_...");
// Create a tamper-proof audit session
const session = await client.sessions.create({
title: "Deal with Acme Corp"
})
// Record a signed agreement event
await client.events.create({
session_id: session.id,
event_type: "shield.agreement.signed",
actor: "[email protected]",
data: { ip: "203.0.113.1" }
})See it in action
Watch a live negotiation session get cryptographically sealed in real time.
Cryptographic Hash Chain
Live Event Stream
RFC 3161 Timestamp
Dashboard
Everything you need to manage evidence
Monitor sessions, verify chain integrity, and manage API credentials — all from a single pane of glass.
SHIELDDashboard
Overview of your SHIELD activity
| Title | Status | Events | Created |
|---|---|---|---|
| Enterprise SaaS License Agreement | active | 14 | 2026. 3. 11. |
| Series A Term Sheet Negotiation | active | 9 | 2026. 3. 11. |
| RFC3161 Timestamp Verification | active | 2 | 2026. 3. 11. |
| Vendor Procurement Contract | active | 7 | 2026. 3. 10. |
| NDA — Acme Corp. | closed | 5 | 2026. 3. 10. |
| Real Estate Deal Alpha | closed | 3 | 2026. 3. 10. |
Pricing
Transparent pricing
Start free, scale as you grow. Every plan includes SHA-256 hash chains and REST API access.
Free
- ✓ 1-month retention
- ✓ 10K events/month
- ✓ SHA-256 hash chain
- ✓ REST API
- ✓ SDKs
- ✓ PDF export (Shield watermark)
- ✓ JSON export
- ✓ Community support
Starter
- ✓ Everything in Free
- ✓ 6-month retention
- ✓ 100K events/month
- ✓RFC 3161 timestampsTrusted third-party timestamp proving
evidence existed at a specific time (ISO standard) - ✓ FRE 902(13) ready audit export
- ✓ Public verify link (Shield branded)
- ✓ Watermark removed
- ✓ Email support
Pro
- ✓ Everything in Starter
- ✓ 5-year retention
- ✓ 500K events/month
- ✓ Custom domain verify link
- ✓ Webhooks
- ✓ Up to 5 team members
- ✓ Priority support
Business
- ✓ Everything in Pro
- ✓ Permanent retention
- ✓ 2M events/month
- ✓ Unlimited team members
- ✓ Multiple API keys
- ✓ IP whitelist
- ✓ Audit log
- ✓ SSO / SAML (Okta, Azure AD, Google)
- ✓ 99.9% uptime SLA
- ✓ Dedicated support
Enterprise
- ✓ Everything in Business
- ✓ Unlimited events
- ✓ On-premise deployment
- ✓ HSM integration
- ✓ 24/7 dedicated CSM
Questions about pricing? [email protected]
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