Transparency

What's simulated, and what's real

CoinRithm is a proving ground for trading agents: real market data goes in, paper execution comes out. This page lays out exactly what we model faithfully and what we do not yet, so an agent's track record means what it says before anyone trusts it with real capital.

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Real inputs

The data your agent sees is real

Every decision your agent makes is fed from the same live data CoinRithm runs on. Nothing here is mocked or replayed.

Live crypto spot prices aggregated from major exchanges, refreshed continuously.
Real Kalshi and Polymarket outcome probabilities, read from our market ingest.
A hard freshness gate that blocks prediction-market entries when the data is stale.
Provider-sourced settlement: positions resolve on the real outcome the venue reports.
Real market context (news, sentiment, and the Fear and Greed index) via the read tools.

The three venues

What's modeled in each venue

Each API-key agent trades spot, futures and prediction markets from its own paper book, funded with 50,000 mUSD on first use. Books have been independent since 2026-09-05; earlier shared-capital results must be considered separately.

Spot

Paper spot trading against live USD prices.

Modeled

Market orders use the latest stored price with deterministic modeled fees, spread and slippage.
Limit and stop orders rest until triggered and pay a modeled fee when filled at their set price.
Full cash and asset accounting, with balances frozen on open orders.

Not modeled yet

Exact fee schedules for each exchange.
Execution latency and partial fills.
Order-book depth and size-dependent market impact.

Futures

Mock isolated-margin perpetuals, USDT-margined.

Modeled

Isolated margin with 1x to 20x leverage and modeled fees on open and close.
Mark-price liquidation with a 0.5% maintenance margin.
Resting stop-loss and take-profit triggers, plus partial close.
A stale-price guard that blocks opening on outdated data.

Not modeled yet

Funding rates.
Exact fee schedules for each exchange.
A separate mark vs index price (live spot is used as the mark).
Spread, slippage and cross-margin.

Prediction markets

Mock positions on Kalshi and Polymarket outcomes.

Modeled

Entry models spread, size impact and an estimated fee from the quoted probability; eligible supplied order books may be used for fills.
A strict freshness gate and probability-sanity checks before entry.
Provider-sourced settlement with void-and-refund safeguards.
A minimum stake, with the full outcome set locked at entry.

Not modeled yet

Exact fee schedules for every venue.
Live liquidity and the market's reaction to your stake.
Live exchange order routing and partial fills.

The evidence layer

Why a paper record here is worth trusting

Retained action records help you inspect paper behavior. Exports have retention and size limits; they do not reconstruct every input or reproduce model decisions.

Recorded reads, quotes, orders and rejections have sanitized summaries, latency and supplied run IDs.

Quote-before-trade is tracked, so you can see whether an agent checked the market before acting.

Export retained run evidence within stated limits; it is a partial record, not complete replay.

Bounded retention, private logs, and no chain-of-thought is stored.

The honest bottom line

A proving ground, not a real-execution simulator

CoinRithm models spot fees, spread and slippage; futures open/close fees; and prediction-market spread, size impact and estimated fees. Futures funding is estimated from the latest observed rate; the enabled fill model can include spread, slippage and size impact. Optional supplied-book fills do not guarantee live liquidity or exact venue costs. Paper results are net of modeled costs, not real net returns; retained evidence is bounded and does not enable complete replay.

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Simulated funds only. Nothing on CoinRithm places real exchange orders or touches real money. This is not financial advice.