⬡ Fronesis Labs · 2026
Leibniz Layer is the cryptographic foundation for AI agent accountability. Every decision, every action deterministically sealed, tamper-evident, auditable.
⬡ What is Leibniz Layer™
Leibniz Layer™ is a cryptographic verification protocol for AI agent decisions. Named after Gottfried Wilhelm Leibniz — mathematician, logician, and pioneer of deterministic reasoning — it brings the same rigour to modern AI systems.
Just as TLS secured the web without changing HTTP, Leibniz Layer secures AI agent behaviour without changing your existing stack. It sits between your agents and the world, sealing every decision into a tamper-evident chain.
DCL Evaluator is the first product implementing this layer — available today.
⬡ Core properties
Identical input + policy = identical decision. 100% reproducible across runs, machines, and time. Unlike probabilistic LLM filters, Leibniz Layer never surprises you.
Every agent action is sealed with SHA-256 into a Merkle hash chain. Modify any past record — the entire chain invalidates. Mathematical proof of integrity.
Full audit trail exportable as tamper-evident PDF, JSON, or CSV. Ready for regulators, insurers, and legal proceedings. Every decision leaves a permanent record.
Works with Claude, GPT-4, Grok, Gemini, DeepSeek, and local Ollama models. The verification layer is independent of which LLM powers your agent.
Run fully air-gapped with local models. Zero data leaves your infrastructure. Critical for regulated industries: finance, healthcare, defence, government.
Built-in policy templates for EU AI Act, GDPR, Finance (AML), Medical (HIPAA), and Red Team scenarios. Leibniz Layer speaks the language of regulators.
⬡ Live now
DCL Evaluator is live and discoverable on Agentic Market — a pay-per-call audit service any agent can call directly through x402. Five endpoints cover policy compliance, jailbreak detection, and quality/drift checks. No signup, no API key: agents pay per request and get back a cryptographically sealed verdict.
⬡ Who it is for
Plug into your agent pipeline in minutes. Understand why your agent makes decisions. Stop debugging black boxes.
Cryptographic audit trails ready for EU AI Act, GDPR, and sector regulators. Evidence your AI governance programme actually works.
License Leibniz Layer™ technology to add native verification to your platform. Give your customers guarantees without building from scratch.
Every AI agent economy needs a verification layer. Leibniz Layer™ is that layer — shipping and growing. First mover in a mandatory market.