DCL Evaluator
About
DCL Evaluator — cryptographic audit trail for AI agents. Powered by Leibniz Layer™
Details
- Author
- Fronesis-Labs
- Downloads
- 200
- Categories
- AI
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- SHA-256 hash chain seals every agent action cryptographically.
- Merkle tree audit trail is tamper-evident by design.
- Deterministic policy engine ensures 100% reproducible decisions.
- Drift detection uses statistical Z‑test for behavioural changes.
- Multi‑LLM support: Claude, GPT‑4, Grok, Gemini, DeepSeek, Ollama.
- Compliance reports export as tamper‑evident PDFs.
- Runs fully offline and air‑gapped with zero data leaving infrastructure.
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
DCL EvaluatorCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
Connect via MCP by adding the server configuration to your client, providing the URL and an API key. Alternatively, download the Windows desktop app. Four tools are available: dcl_commit (seal an action), dcl_verify (verify chain integrity), dcl_get_chain (retrieve audit trail), and dcl_report (generate compliance report). Autonomous agents can pay for audits via the x402 HTTP protocol.
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"dcl evaluator": {
"dcl-evaluator": {
"command": "npx",
"args": [
"-y",
"@smithery/cli@latest",
"run",
"dcl-evaluator--fronesislabs",
"--key",
"<YOUR_DCL_API_KEY>"
],
"env": {
"DCL_API_KEY": "<YOUR_DCL_API_KEY>"
}
}
}
}
}McpServers
{
"dcl-evaluator": {
"command": "npx",
"args": [
"-y",
"@smithery/cli@latest",
"run",
"dcl-evaluator--fronesislabs",
"--key",
"<YOUR_DCL_API_KEY>"
],
"env": {
"DCL_API_KEY": "<YOUR_DCL_API_KEY>"
}
}
}DCL Evaluator
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.
---
Why DCL Evaluator
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.
---
Core capabilities
- 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
---
💳 Pay-per-Audit via x402
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.
---
Connect via MCP
{
"mcpServers": {
"dcl-evaluator": {
"url": "https://mcp.fronesislabs.com/sse",
"headers": {
"x-api-key": "your-key"
}
}
}
}
Four tools available:
| Tool | Description |
|------|-------------|
| dcl_commit | Seal an agent action into the hash chain |
| dcl_verify | Verify chain integrity |
| dcl_get_chain | Retrieve full audit trail |
| dcl_report | Generate compliance report |
Health check: https://mcp.fronesislabs.com/health
---
Download
Desktop app (Windows). Wails + Go + React. Works offline.
---
Compliance coverage
Built-in policy templates:
DEFAULT · EU AI ACT · GDPR · FINANCE · MEDICAL · RED TEAM
---
Leibniz Layer™
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."
---
Links
- 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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