QuantaOptima

Auditable AI Actions — cryptographic audit trails for AI agent workflows.

QuantaOptima makes every AI agent action tamper-evident. It ships as an MCP server that any LLM agent can call, and as a Python library that any MCP server developer can embed. Every action is HMAC-SHA256 signed and hash-chained — tamper with one step and the entire chain breaks.

pip install quantaoptima

Why This Exists

AI agents are making decisions, writing code, calling APIs, transforming data, and optimizing configurations — but nobody can prove what they did or why. There's no audit trail, no tamper detection, no accountability.

QuantaOptima fixes this with a cryptographic hash chain that logs every action:

• quantaoptima_log_action — Log any action with before/after state to the audit chain

• quantaoptima_verify_chain — Verify the HMAC-SHA256 chain integrity

• quantaoptima_export_chain — Export the full audit trail as JSON

• quantaoptima_chain_status — View chain statistics and health

Plus a built-in quantum-inspired optimizer that demonstrates the audit chain in action:

• quantaoptima_optimize — Run optimization with every step automatically audited

• quantaoptima_explain — Human-readable explanation of what the optimizer did

• quantaoptima_benchmark — Compare against scipy's classical methods [PRO]

• quantaoptima_observe — Inspect entropy, interference, phase transitions [PRO]

• quantaoptima_audit — Verify the optimizer's audit trail [PRO]

Related MCP server: agent-gate

What Makes It Different

1. Every Action Is Tamper-Evident

Every logged action produces an HMAC-SHA256 signature chained to the previous action. Tamper with one block and all subsequent signatures break. This matters for regulated industries (pharma, finance, aerospace), scientific reproducibility, and AI governance.

2. Built for AI Agents (MCP-Native)

Ships as an MCP server — your agent can log actions, verify the chain, and export the audit trail through natural language. No integration code needed. Setup takes 30 seconds.

3. Works as a Library Too

Other MCP server developers can embed QuantaOptima's audit chain in their own tools:

from quantaoptima import AuditChain, auditable

chain = AuditChain(scope="my-mcp-server")

# Log actions explicitly
chain.log("query", {"question": "What's the revenue?"}, {"answer": "$4.2M", "source": "db"})
chain.log("decision", {"options": ["A", "B"]}, {"chosen": "A", "reason": "lower risk"})

# Or use the decorator to auto-audit any function
@auditable(chain, action_type="calculation")
def compute_risk(portfolio: dict) -> dict:
    return {"risk_score": 0.42}

result = compute_risk({"stocks": ["AAPL", "GOOG"]})

# Verify and export
assert chain.verify()
chain.export_json("audit_trail.json")

4. Built-In Optimizer Demo

The quantum-inspired optimizer shows the audit chain at work. Every optimization step is cryptographically signed, producing a complete provenance record from start to finish. The optimizer features:

• Quantum-inspired Measurement-Collapse Pruner algorithm

• Built-in interpretability: entropy trajectories, interference metrics, phase transitions

• Reliable convergence across 6 benchmark functions up to 100 dimensions

Quick Start

MCP Server (for Claude, GPT, or any MCP-compatible agent)

pip install quantaoptima
quantaoptima-server

Add to your Claude Desktop config (claude_desktop_config.json):

{
  "mcpServers": {
    "quantaoptima": {
      "command": "quantaoptima-server"
    }
  }
}

Then ask Claude:

• "Log a decision to the audit chain: I chose option A because it had lower risk."

• "Verify the audit chain and show me the status."

• "Optimize the Rastrigin function in 10 dimensions, then verify the audit trail."

• "Export the full audit chain to audit_trail.json."

Python Library (for MCP server developers)

from quantaoptima import AuditChain

# Create a chain for your server
chain = AuditChain(scope="my-server", actor="my-agent")

# Log any action
chain.log(
    action_type="api_call",
    state_before={"endpoint": "/users", "method": "GET"},
    state_after={"status": 200, "count": 42},
    metadata={"duration_ms": 150},
)

# Verify chain integrity
print(chain.verify())        # True
print(chain.summary())       # Stats and health
print(chain.verify_detailed())  # Per-block verification

# Export
chain.export_json("trail.json")

Decorator Pattern

from quantaoptima import AuditChain, auditable

chain = AuditChain(scope="data-pipeline")

@auditable(chain, action_type="transform")
def clean_data(raw: list) -> list:
    return [x for x in raw if x is not None]

@auditable(chain, action_type="analysis")
def compute_stats(data: list) -> dict:
    return {"mean": sum(data) / len(data), "count": len(data)}

# Both calls are automatically logged to the audit chain
clean = clean_data([1, None, 3, None, 5])
stats = compute_stats(clean)

assert chain.verify()
print(f"Audit trail: {len(chain)} blocks, verified")

Pricing

Annual Pro: $199/year (save 43%)

How the Audit Chain Works

Action 1                    Action 2                    Action 3
┌─────────────────┐         ┌─────────────────┐         ┌─────────────────┐
│ action: "query"  │         │ action: "decide" │         │ action: "execute"│
│ before: {...}    │         │ before: {...}    │         │ before: {...}    │
│ after: {...}     │         │ after: {...}     │         │ after: {...}     │
│ sig: HMAC(       │──chain──│ sig: HMAC(       │──chain──│ sig: HMAC(       │
│   prev_sig +     │         │   prev_sig +     │         │   prev_sig +     │
│   data           │         │   data           │         │   data           │
│ )                │         │ )                │         │ )                │
└─────────────────┘         └─────────────────┘         └─────────────────┘

Each block's signature depends on the previous block's signature. Change anything in block 1, and the signatures of blocks 2 and 3 become invalid. This is the same principle behind blockchain, applied to AI agent actions.

How the Optimizer Works

The built-in quantum-inspired optimizer runs a loop of four steps:

1. Encode — Map population fitness to complex amplitudes via Boltzmann weighting

2. Evolve — Apply three quantum-inspired operators: Rotation R(θ), Entanglement E(λ), Scrambling S(γ)

3. Collapse — PCA-derived measurement basis + Born rule probabilities + entropy constraint = adaptive selection

4. Audit — Every step is HMAC-SHA256 signed and hash-chained

Project Structure

quantaoptima/
├── audit.py           # Core: AuditChain, AuditBlock, @auditable decorator
├── core.py            # Quantum state encoder + evolution operators
├── mcp_algorithm.py   # Measurement-Collapse Pruner
├── optimizer.py       # Full optimizer orchestration
├── licensing.py       # Freemium license key system
├── server.py          # MCP server (10 tools)

Patent Status

US Provisional Patent Application filed May 25, 2025. Covers:

• Cryptographic audit trail for AI agent actions

• Quantum-inspired optimization with measurement collapse

• Entropy-constrained adaptive selection

• Foundation model integration architecture

Citation

@software{hart2025quantaoptima,
  author = {Hart, Justin},
  title = {QuantaOptima: Auditable AI Actions},
  year = {2025},
  url = {https://github.com/jdhart81/quantaoptima}
}

License

Apache 2.0 — use it freely, including commercially. The patent covers the specific algorithm implementation; the Apache license grants you a patent license for use of this software.