Now in Public Beta

Cryptographic Compliance
for AI Agents

Prove your AI agent is well-behaved — without revealing how it works. Zero-knowledge STARK proofs generated in 9ms.

Get Started → Read the Docs
9ms
Proof generation
6.7KB
Proof size
96-bit
Security level
0
Data leaked

How It Works

Three steps to cryptographic proof that your agent stays within bounds.

1

Observe

Collect behavioral metrics from your AI agent — response quality scores, latency, compliance checks, or any measurable signal.

2

Prove

Send observations to the SENTINEL API. We compute an EWMA control chart and generate a STARK proof that behavior stays within your defined limits — in 9ms.

3

Verify

Anyone can verify the proof — your clients, auditors, or regulators — without seeing the raw data. The proof is self-contained and tamper-proof.

Why SENTINEL

Purpose-built for AI agent compliance. Not another generic ZK platform.

Zero-Knowledge by Design

Your raw observations never leave the proof. Auditors verify compliance without seeing proprietary operational data. GDPR, CCPA, and DORA compatible by construction.

9ms Proof Generation

Fast enough for synchronous API calls. Generate proofs in real-time as part of your agent's workflow — no batch jobs, no waiting.

Human-Readable Outputs

Public inputs show observation count, final EWMA, control limits, and pass/fail — in plain integers. No cryptographic PhD required to read the results.

Client-Side Verification

Ship our WASM verifier to your clients. They verify proofs locally in 158ms — no network calls, no trust in SENTINEL required.

Compliance Reports

Generate professional PDF attestation reports from any proof. File them with auditors, attach to contracts, share with partners.

MCP Native

Drop SENTINEL into any MCP-compatible AI agent framework. Three tools: prove, verify, health. Five-minute integration.

One API Call

Generate a cryptographic behavioral attestation with a single POST request.

# Generate a STARK proof that agent behavior stays within limits
curl -X POST https://api.starksentinel.com/v1/prove \
  -H "X-API-Key: $SENTINEL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "observations": [95, 98, 92, 97, 100, 94, 96, 99],
    "baseline_mean": 96,
    "ucl": 110,
    "lcl": 80
  }'

# Response (9ms later):
{
  "public_inputs": {
    "num_observations": 8,
    "final_ewma": 95,
    "within_limits": true,
    "ucl": 110,
    "lcl": 80
  },
  "proof_bytes": [...],
  "metadata": {
    "generation_time_ms": 9,
    "proof_size_bytes": 6761,
    "security_level": 96
  }
}

Try it yourself →

Built For

AI Agent Operators

Prove to your clients that your agent stays within behavioral bounds — response quality, latency, safety scores — without exposing operational data or proprietary algorithms.

Enterprise Compliance Teams

Get verifiable evidence that third-party AI agents are behaving as contracted. File cryptographic attestation reports with auditors for SOC 2, DORA, or internal audit.

Start Proving

Free tier includes 100 proofs per month. No credit card required.

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