Tamper-proof
evidence for
AI agents
Every autonomous decision, every prompt, every action your AI agents take —
sealed so the record can't be altered after the fact.
Designed to align with FRE 902(14) authentication standards.
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 when something goes wrong.
No Audit Trail
Regulators and courts require a verifiable chain of custody. A database timestamp alone won't hold up. Cryptographic audit trails sealed at the moment of action will.
Contract & Human Interactions
Parties can alter documents locally and claim it was the agreed version. A hash chain makes every state of a negotiation immutable and independently provable.
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 session for your agent
const session = await client.sessions.create({
title: "Agent: support-bot-v2 session"
})
// Seal every tool call the agent makes
await client.events.create({
session_id: session.id,
event_type: "shield.agent.action.tool_called",
actor: "agent:support-bot-v2",
data: { tool_call_id: "call_abc123", tool: "send_email" }
})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 |
|---|---|---|---|
| Agent: support-bot-v2 | active | 47 | 2026. 3. 11. |
| Agent: payment-agent prod | active | 21 | 2026. 3. 11. |
| Agent: scheduling-assistant | active | 13 | 2026. 3. 11. |
| Agent: document-reviewer | closed | 35 | 2026. 3. 10. |
| Enterprise SaaS License Agreement | active | 14 | 2026. 3. 10. |
| NDA — Acme Corp. | closed | 5 | 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)/(14) 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
- ✓ 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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