Enables local AI agents to seal actions into a cryptographic hash chain, providing deterministic verification and tamper-evident audit trails in air-gapped environments.
Cryptographic audit trail for AI agents. Powered by Leibniz Layer™
Every decision your AI agent makes — sealed, verified, auditable.
DCL Evaluator is the first implementation of Leibniz Layer™ — a cryptographic verification protocol for AI agent decisions. It brings deterministic, tamper-evident audit trails to any LLM-powered system.
AI agents make decisions. Those decisions carry risk — legal, financial, reputational. Yet most AI systems are black boxes: no record of what was decided, why, or whether the decision was tampered with afterward.
DCL Evaluator solves this with a simple principle borrowed from cryptography: commit every decision into a hash chain. Modify any past record and the entire chain invalidates. Mathematical proof of integrity — no trust required.
Related MCP server: TrustAtom MCP Server
SHA-256 hash chain — every agent action cryptographically sealed
Merkle tree audit trail — tamper-evident by design
Deterministic policy engine — identical input = identical decision, 100% reproducible
Drift detection — statistical Z-test catches behavioural drift before it becomes a compliance failure
Multi-LLM support — Claude, GPT-4, Grok, Gemini, DeepSeek, Ollama (local, air-gapped)
MCP server — connect any agent in minutes via Model Context Protocol
Compliance reports — tamper-evident PDF export, ready for regulators
Offline-capable — runs fully air-gapped, zero data leaves your infrastructure
DCL Evaluator supports the x402 payment protocol.
AI agents can request audits autonomously — no API keys, just HTTP 402 + USDC on Base.
Endpoint: https://x402.fronesislabs.com
Network: Base Mainnet (eip155:8453)
Tool | Price | Margin |
Quick Scan | $1 USDC | 99% |
Standard Audit (4 models) | $5 USDC | 99.4% |
Deep Audit + PoC | $15 USDC | 99.3% |
Any agent that speaks HTTP can pay for and receive a cryptographic audit — no human required.
{
"mcpServers": {
"dcl-evaluator": {
"url": "https://mcp.fronesislabs.com/sse",
"headers": {
"x-api-key": "your-key"
}
}
}
}Four tools available:
Tool | Description |
| Seal an agent action into the hash chain |
| Verify chain integrity |
| Retrieve full audit trail |
| Generate compliance report |
Health check: https://mcp.fronesislabs.com/health
Desktop app (Windows). Wails + Go + React. Works offline.
Built-in policy templates:
DEFAULT · EU AI ACT · GDPR · FINANCE · MEDICAL · RED TEAM
DCL Evaluator is the first product implementing Leibniz Layer™ — the cryptographic verification layer for the AI agent economy.
Named after Gottfried Wilhelm Leibniz — mathematician, logician, pioneer of deterministic reasoning.
"Every decision, every action deterministically sealed, tamper-evident, auditable."
Website: fronesislabs.com
Leibniz Layer™: leibniz.fronesislabs.com
IP & Patents: leibniz.fronesislabs.com/ip-patents.html
MCP endpoint: mcp.fronesislabs.com
X: @keykeeper42
White Paper: WHITEPAPER.md · leibniz.fronesislabs.com/whitepaper.html
© 2026 Fronesis Labs · Leibniz Layer™, DCL Evaluator™ — Patent Pending · Source-Available License
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