Docs

Collateral

Test USD

Starting balance

$1,000

Faucet

Back to $1,000 · 1/h

Liquidity

Simulated + real

1. 1Log in. Your account opens with $1,000 test USD.
2. 2Pick a market on Markets: a card, a skin or an index basket.
3. 3Long or short. Set size (units or USD), leverage and order type, then place it.
4. 4Manage it on Portfolio: PnL, funding, liquidation price, close.

Categories

MTG · Pokémon · One Piece · CS2

Max leverage

3–5× singles · 5–10× indexes

Min order

$10 notional

OI cap

$25k–$500k / side

• A perp tracks an item's price with no expiry and no delivery. You hold price exposure, never the card or skin.
• Size is in units of the item: 1 = one card, one skin or one basket. Order in units or in USD.
• Each market names its exact item: print, set, condition or wear (e.g. Unlimited · Near Mint, Factory New).
• Index perps track a basket. Price = Σ (constituent oracle price × quantity). One trade, a whole meta.

Taker fee

0.045%

Maker fee

0.015%

Price band

±15% of oracle

Market slippage

5% from mark

Leverage

1× to market max

Order rate

20 / min

• Long gains when the price rises. Short gains when it falls.
• Market fills now against the book, within the slippage bound. Limit rests at your price.
• Post-only limits never take; rejected if they would cross (post_only_would_cross).
• Reduce-only can only shrink a position, never grow or flip it.
• Self-trade prevention: your order never fills against your own resting order; the resting one is cancelled.

Rejections: insufficient_margin, price_band, oi_cap, min_notional, reduce_only, post_only_would_cross, no_liquidity, oracle_stale.

Mode

Cross margin

Initial margin

Notional ÷ leverage

Maintenance

Notional ÷ (2 × max lev.)

Partial liquidation

20% slices > $2,000

Liquidation fills

Within 10% of mark

Vault backstop

< ⅔ of maintenance

• Account value = balance + unrealized PnL. Free collateral = account value − margin in use − margin held by open orders.
• Below maintenance: open orders are cancelled and positions close into the book with reduce-only market orders, largest first.
• Small positions close in full. Large ones close 20% at a time. It stops once you're back above maintenance.
• Below ⅔ of maintenance: the MOX Liquidity Vault takes every position at mark and keeps the remaining margin. Any bad debt is the vault's; you never owe more than your balance.
• Everything runs on the mark price: a 150 s smoothed price that moves ≤ 0.3%/s and stays within ±10% of the oracle. One wild print can't liquidate you.

Paid

Hourly, on the hour

Interest

0.00125% / h

Premium clamp

±0.05% / 8 h

Cap

±4% / h

• Perp above oracle → rate positive → longs pay shorts. Below → shorts pay longs.
• Rate / h = (premium + clamp(interest − premium, ±0.05%)) ÷ 8, Hyperliquid's 8 h formula paid hourly.
• Premium compares $1,000 impact bid/ask to the oracle, sampled every 5 s and averaged over the hour.
• Payment = position size × oracle price × rate. Shown as %/h on every market; your history is on Portfolio.

Card sources

TCGplayer · Scryfall · PokémonTCG · JustTCG

Skin sources

Skinport · Steam · CSFloat

Half-life

24 h cards · 2 h CS2

Slew limit

6 bps/min cards · 15 CS2

Stale after

48 h cards · 45 min CS2

Max weight / sale

12%

1. 1Collect. Sales, aggregate market prices and listings from each market's sources. Indexes price every constituent.
2. 2Screen. Each print gets a manipulation score from 0 to 1. stat-v1 measures distance from the recent median (in MAD units), from the oracle and from other sources, plus same-direction bursts and walk-ups.
3. 3Aggregate. Target = recency-weighted median of accepted and downweighted prints. No single sale carries more than 12%.
4. 4Publish. The live price walks toward the target at the slew limit.

Jev (TypeSafe's decision model) reads every print after stat-v1 and answers two questions: was it made to manipulate the price, and should it be included? Score = max(stat-v1, Jev). Jev can raise risk, never lower it; a confident “don't include” drops the print. If Jev is down, stat-v1 stands.

Status is live, stale or seed (no live source yet). Every screened print, with its score and reasons, is public on Oracle.

• Simulated accounts: market makers, sim traders, the MOX Liquidity Vault and the fee account. All tagged sim.
• Volume, open interest and trader counts show their simulated share (hover the stat).
• Real traders are highlighted on the live tape. Sim traders rank on the leaderboard, tagged; makers and the vault don't.

REST

https://api.trademox.com/v1

WebSocket

wss://api.trademox.com/ws

Auth

Bearer: login token or API key

Rate limit

120 / min per token

• Decimals are strings ("1234.50"). Times are unix ms. Sizes are item units, signed on positions. Funding is a fraction per hour.
• Errors: {"error":{"code","message"}}. Order rejections are 4xx errors, never stored orders.
• Public data is cached ≤ 1 s with ETags. Poll REST for the first paint, then switch to the socket.
• Full spec: OpenAPI 3.1.

curl https://api.trademox.com/v1/markets
curl "https://api.trademox.com/v1/markets/MTG-LOTUS/book?depth=10"
curl -X POST https://api.trademox.com/v1/orders \
  -H "Authorization: Bearer mox_sk_…" -H "Content-Type: application/json" \
  -d '{"symbol":"MTG-LOTUS","side":"buy","type":"market","sz_usd":"100","leverage":3}'

{"op":"subscribe","channel":"markets"}
{"op":"subscribe","channel":"book","symbol":"MTG-LOTUS"}
{"op":"subscribe","channel":"feed"}
{"op":"auth","token":"mox_sk_…"}
{"op":"subscribe","channel":"account"}

Channels: markets (changed stats ≤ 1/s), book (≤ 4/s), trades, feed, candles, oracle, account. Merge markets updates by symbol. Reconnect with backoff and resubscribe.