# Duon Labs > The probability layer for finance. We build Voyons, a learned market simulator. Duon Labs builds the probability layer for financial markets. Instead of point predictions, Voyons generates thousands of calibrated scenario distributions. Our API powers live deployments for funds, platforms, and autonomous agents. ## What is Voyons? Voyons is a specialized deep learning model for financial markets. It learns market dynamics directly from raw data without predefined assumptions. Given market inputs, it generates thousands of plausible future price paths (scenario distributions) with calibrated probabilities. The output is not a single forecast but a probability surface covering regime dynamics, tail risks, and directional confidence. ## What is Duon Labs? Duon Labs is an AI research company building probabilistic infrastructure for financial markets. Founded in 2025, the company is headquartered in Dover, Delaware. Its primary product is Voyons, available via REST API, Python SDK, and x402 pay-per-request. Duon Labs publishes open research including SICK BIDE (distribution modeling) and Apogee (scaling laws for market forecasting). ## Key Facts - 1M+ weekly scenario views via CoinStats integration (100K+ daily) - 1000+ daily forecasts via Prophetica - 24 supported crypto assets including BTC, ETH, SOL, BNB, XRP, ADA, DOGE - Monthly model releases with Elo-style evaluation (Arena) - HEP research vault live on Hyperliquid with on-chain verifiable results - HEP backtest (Feb-Aug 2025): +29.3% return, 3.54 Sharpe ratio, -5.0% max drawdown - Open research: SICK BIDE (Dec 2024), Apogee (Feb 2025) ## Payment All paid endpoints support the x402 payment protocol (HTTP 402, v1). No API key required for agents. Facilitator: Meridian (mrdn.finance). Supported networks: - Base (chain 8453): USDC, 6 decimals. Native EIP-3009, no approval needed. - MegaETH (chain 4326): USDm, 18 decimals. Uses EIP-3009 forwarder. One-time ERC-20 approval of the forwarder contract required before first payment. Flow: request a resource, receive 402 with per-network pricing, pick a network, sign payment, retry with `Payment-Signature` header, receive data + settlement proof. Append `?quote=true` to any paid endpoint to get the price per network (no auth required). Authenticated users with an API token can also pay via pre-purchased credits. ## API Base `https://api.duonlabs.com/v1/` ## Endpoints ### Scenario Generation (paid) `POST /v1/scenarios/generation/` Generate scenario distributions for any supported asset. Returns thousands of simulated price paths. Cost depends on model, number of scenarios, and time steps. Parameters: `model` (string), `n_scenarios` (int), `n_steps` (int), `inputs` (object with `asset`, `timeframe`, etc.) ### Metrics (paid) Pre-computed intelligence derived from Voyons scenario distributions, updated every 8 hours. - `GET /v1/metrics/latest/` — Latest metric per (pair, frequency). All fields returned by default. Filter by `pair`, `frequency`. Add `?include=trend_metrics` to include per-step trend data. `model_handle` defaults to `best`. - `GET /v1/metrics/timeseries/` — Historical time series (max 1000 rows). Requires `fields` (numeric metrics only), `pair`, and `frequency`. `model_handle` defaults to `best`. ### Metrics (free) - `GET /v1/metrics/summary/` — Available assets, buckets, and metric fields (metadata only) - `GET /v1/metrics/sample/` — Sample of recent metrics (no auth required) ### Models - `GET /v1/inference/models/` — Browse available models and access levels - `GET /v1/inference/routes/` — Named routing handles that map to models ### Usage - `GET /v1/usage/` — Credit usage history (authenticated) - `GET /v1/usage/by_month/` — Monthly usage aggregates (authenticated) ### Users - `GET /v1/users/me/` — Current user profile and balance (authenticated) ## Authentication - **x402**: `Payment-Signature` header with signed stablecoin payment (no account needed) - **Token**: `Authorization: Token ` header (get a key at https://platform.duonlabs.com) ## Supported Assets 24 major pairs including BTC, ETH, SOL, BNB, XRP, ADA, DOGE, DOT, LINK, LTC, AVAX, SUI, and others. Use `/v1/metrics/summary/` for the full current list. ## Frequently Asked Questions **How is Voyons different from an LLM applied to markets?** LLMs are language models optimized for text. Markets are numerical, temporal, and non-stationary. Voyons is built from scratch for time-series data: it learns from raw market data, outputs calibrated probability distributions, and does not hallucinate numbers. **What is x402?** x402 is an open HTTP payment standard backed by Coinbase. It lets autonomous agents pay for API calls with stablecoins (USDC on Base, USDm on MegaETH) without needing an account or API key. Duon Labs is the first probabilistic market data provider on the x402 ecosystem. **What is extropy?** Extropy is an information-theoretic metric used to evaluate forecast quality. It measures how much predictive information a model captures compared to a baseline. Higher extropy means the model's probability distributions are better calibrated to actual market outcomes. **What asset classes does Voyons support?** Currently 24 major crypto pairs. The architecture is asset-class agnostic, and expansion to commodities (metals, energy, agriculture) is in progress. ## Documentation - [OpenAPI Schema](https://api.duonlabs.com/api/schema/): Machine-readable API specification - [API Docs](https://api.duonlabs.com/api/redoc/): Interactive documentation (ReDoc) - [Python SDK](https://github.com/duonlabs/duonlabs): Official client library - [Playground](https://playground.duonlabs.com): Interactive sandbox with x402 payment testing - [Platform](https://platform.duonlabs.com): API key management and usage dashboard ## Website - [Homepage](https://www.duonlabs.com): Company overview - [Voyons](https://www.duonlabs.com/voyons): Probability layer capabilities - [x402](https://www.duonlabs.com/x402): Agent payment integration - [Intel](https://www.duonlabs.com/hyperextropy): Live probabilistic market intelligence - [Benchmarks](https://www.duonlabs.com/arena): Model performance leaderboard - [ARC](https://www.duonlabs.com/arc): Autonomous Research Capital — agent that pays for intelligence via x402 and allocates capital on MegaETH - [Research](https://www.duonlabs.com/research): Open-source research ## Contact - General: contact@duonlabs.com - Enterprise: enterprise@duonlabs.com - [GitHub](https://github.com/duonlabs) - [X/Twitter](https://x.com/DuonLabsHQ)