Powered by ATS Protocol · Built by a solo founder

See how AI thinks.
Compare. Decide. Trust.

NotaryOS is the AI Decision Plane. Run your question through multiple AI models in parallel, visualize their reasoning trees, see where they agree and diverge — and seal every decision with cryptographic proof.

Not another chatbot. NotaryOS shows you how multiple AIs reason — and proves it.

4 AIs
Reasoning in parallel
<15ms
Receipt sealing
6
Synthesizer presets
$0
Free to start

Four reasoning engines. One decision.

Each model brings a different reasoning style. The Master Synthesizer weighs them all.

D
DeepSeek
Deep chain-of-thought reasoning
G
Gemini
Broad research and synthesis
S
Sonnet
Precise logical analysis
K
Kimi
Pattern detection and risk flags
Master Synthesizer
Weighs each model's analysis, identifies agreement, divergence, and blind spots — then produces a consensus with confidence scores.

The AI Decision Plane

Multi-model reasoning. Decision tree visualization. Cryptographic trust. All in one platform.

Multi-Model Reasoning

Run any prompt through DeepSeek, Gemini, Sonnet, and Kimi simultaneously. See how each AI reasons — not just what it concludes.

Decision Tree Visualization

Every reasoning step extracted and visualized as an interactive tree. Expand branches, explore logic paths, compare depth across models.

Model Agreement & Divergence

Real-time view of where models agree and where they diverge. The Master Synthesizer weighs each model's analysis to produce a consensus.

Counterfactual Receipts

Cryptographic proof of what AI considered but chose not to do. Three proofs — capability, opportunity, decision. A first in the industry.

Provenance DAG

Track trust across multi-agent workflows with a directed acyclic graph. Invalidate one upstream receipt and downstream trust cascades automatically.

Adversarial Synthesis

The synthesizer actively looks for blind spots, contradictions, and risks that individual models miss. Not consensus — intelligence.

SDK & Auto-Receipting

Python, TypeScript, and Go SDKs. Call notary.wrap(agent) and every public method auto-generates a cryptographic receipt. 3 lines to integrate.

Per-Agent Hash Chains

Every agent maintains its own cryptographic chain. Insert, delete, or reorder a receipt and the chain breaks — detected instantly.

6 Synthesizer Presets

Purpose-built synthesis logic for different decision domains. Each preset tunes the Master Synthesizer for your use case.

G
General

All-purpose reasoning for any question

T
Trading

Market analysis, risk assessment, portfolio decisions

O
OSINT

Intelligence gathering and threat analysis

R
Real Estate

Property valuation and investment analysis

L
Legal

Contract review, compliance, risk assessment

C
CustomPro+

Define your own synthesis logic (Pro/Enterprise)

From prompt to provenance-sealed decision in seconds

STEP 01

You ask a question

Enter any prompt — investment analysis, architecture decision, legal review, strategic planning.

STEP 02

Models reason in parallel

DeepSeek, Gemini, Sonnet, and Kimi analyze your prompt simultaneously with full reasoning chains.

STEP 03

Synthesis reveals consensus

The Master Synthesizer weighs each model's analysis, identifies agreement, divergence, and blind spots.

STEP 04

Decision sealed with proof

Every reasoning node and the final synthesis sealed with Ed25519 signatures. Verifiable, tamper-proof.

Infrastructure

Powered by the ATS Protocol

NotaryOS runs on the proprietary ATS Protocol (Agent Town Square Protocol) — a purpose-built backend infrastructure for secure, verifiable multi-agent communication. The ATS Protocol provides the cryptographic provenance layer, per-agent hash chains, and trust propagation engine that makes NotaryOS possible.

Ed25519 Provenance Chain

Every reasoning node sealed with Ed25519 signatures and chained into a verifiable DAG. Not just transparency — mathematical proof.

Zero-Trust by Default

Receipts are self-contained JSON with embedded signatures. Verify offline — no need to trust our servers or call our API.

Multi-Agent Trust Graph

When agents collaborate, provenance references link receipts. Invalidate one and downstream trust cascades automatically.

Simple, Transparent Pricing

Start free. Scale your decision intelligence as you grow.

Starter

$0/month
  • 10 decisions/month
  • 2 models per run
  • General preset only
  • 7-day history
  • 2-model comparison
  • Basic decision trees
  • Community support
  • Public API
Most Popular

Explorer

$59/month
  • 500 decisions/month
  • 4 models per run
  • All 6 presets
  • 90-day history
  • 4-model parallel reasoning
  • Interactive decision trees
  • OSINT intelligence feed
  • Counterfactual receipts
  • Email support

Pro

$159/month
  • 5,000 decisions/month
  • Unlimited models
  • Custom synthesis prompts
  • Unlimited history
  • API access
  • Priority support
  • Shareable decision URLs

Enterprise

Custom
  • Unlimited decisions
  • Dedicated infrastructure
  • Custom model integration
  • Decision governance policies
  • SLA guarantee
  • Air-gapped deployment
  • Compliance exports
  • White-label

See full pricing details →

Stop asking one AI. Start seeing the whole picture.

The AI Decision Plane. Multi-model reasoning with cryptographic provenance. Free to start.