Lighter vs AsterDex: zero fees on one book, a much longer list on the other

Lighter if cost per round trip is what decides your edge, because its own API reports a maker and taker fee of exactly zero on every active book. AsterDex if the market you want is only listed there, which for anything outside the crypto majors is often the case. Both match orders in a book, so the habits transfer; only the bill and the inventory differ.

Lighter's order-book endpoint reports a maker fee and a taker fee of exactly zero on all 226 of its active books, with the fee flags enabled, so the zero is the live venue configuration and not a promotion described in a post. AsterDex charges a maker and taker fee, but it does not carry one in exchangeInfo and its commission endpoint rejects a call without an API key, so no AsterDex rate is quoted anywhere on this page. That leaves an honest comparison of shapes rather than numbers: zero against a schedule. What the difference is worth is entirely a function of turnover. On a position held for a month it is nearly irrelevant next to funding. On twenty round trips a day it is the whole argument.

AsterDex's exchangeInfo returned 590 symbols, 570 of them perpetuals with a TRADING status, 15 settling and 5 not open yet. Lighter returned 244 order books with 226 active, 216 perp and 10 spot. Through our own gateway the routable counts were 556 and 236, which differ from the venues' own numbers because the gateway counts only markets it can place an order into. Either way AsterDex is comfortably the longer list. As on any venue, a long list says nothing about depth in the specific market you want, and neither venue publishes comparable per-market depth, so no depth claim appears here.

• AsterDex: 570 trading perpetuals of 590 symbols
• Lighter: 226 active books of 244, all reporting zero fees
• Routable through our gateway: 556 AsterDex, 236 Lighter

The usual framing is that Lighter is the venue with the stock perps. Both APIs say otherwise. Applying our catalog's asset-class column to Lighter's live book gives at least 34 equity, 9 commodity, 5 ETF, 5 FX and 2 index non-crypto books, so it reaches past equities into metals, energy and agriculture (BRENTOIL, NATGAS, WHEAT, WTI, XAG, XAU, XCU, XPD and XPT), dollar FX pairs and two US index books, US500 (S&P 500) and US100 (Nasdaq 100). AsterDex tags its own trading symbols by underlying, and those tags include STOCK on 110 symbols, ETF on 14 and Commodities on 11; the tags overlap, so read them as reach rather than an exact inventory. Both figures are floors: Lighter's because the classifier still files active books like SAMSUNGUSD, XIAOMI and MRNA as crypto, AsterDex's because the tags are its own and not exhaustive. Price-checking our catalog's classes against each venue's own marks gives at least 55 non-crypto markets (34 equity, 9 commodity, 5 ETF, 5 FX and 2 index) on Lighter and at least 40 non-crypto markets (31 equity, 5 commodity and 4 ETF) on AsterDex, so both carry equity exposure and both reach into commodities. What Lighter has is not exclusivity, it is price: its non-crypto books are zero-fee like everything else on the venue.

Lighter is its own zk-rollup and settles in USDC, so the venue and the chain arrive together and there is one collateral asset to think about. AsterDex is deployed on existing chains, BNB Chain among them, and its book is not margined in a single asset: across the trading set the margin asset is USDT on most markets, with USD1 and one further collateral asset on a small tail. The practical consequence is a funding step. On AsterDex the market you want can be quoted against collateral you do not hold, and that has to be solved before the trade is a trade.

AsterDex consumes order size in units of the asset, the same convention as Hyperliquid. In our own app the Lighter path takes USD collateral instead and derives the asset size from it, as collateral multiplied by leverage divided by price. So the same number typed into the same field means a quantity of coins on one venue and a dollar amount of margin on the other. Our app converts before dispatch. If you are building against both, this is the first thing to write a test for, because both values are accepted and neither venue can tell you which one you meant.

Hypertradeworx routes to Lighter and AsterDex from one order ticket and one self-custodial wallet, alongside Hyperliquid, GMX and Ostium, handles the sizing conversion, and reports positions from both in a single portfolio. Margin stays on the venue holding the position. Nothing nets across them, because each runs its own risk engine.