Dinero en la Mesa — Perp DEX costs & funding

PAID: 29 USDC on Base per 30 days on up to 3 pairs (status and cancel are free), via x402 (no account; an x402-enabled client pays automatically). A POST to your webhook the minute a rule starts to hold, checked every minute on the live books: a delta-neutral funding gap netting at least your threshold after opening and closing both legs, or a venue whose round-trip cost at your size drops to your threshold. Signed with HMAC-SHA256. We test your webhook first: if it does not answer, you are not charged.

Which decentralised perpetual exchange is cheapest right now to open and close a market order of a given size: taker fees on both legs plus real slippage on the live order book, across 28 perp DEXs (Hyperliquid, Lighter, Aster, Extended, Paradex…). Every figure with its time and source.

Changes in the airdrops we track (dates, rules, rewards) in the last 1 to 7 days, newest first.

PAID: 0.05 USDC on Base per call, via x402 (no account; an x402-enabled client pays automatically). For every perp DEX with a published weekly points pool: the share of this week's pool that $1M of your volume would earn (from the venue's live 7-day volume) and what that volume costs in fees at the entry tier, so you farm where a dollar of fees buys the most. A theoretical maximum, said so.

The best long/short pair across perp DEXs to collect the funding difference on one pair, net of opening and closing both legs at market. Free tier: a reading up to 15 minutes old. Rates change every hour: a snapshot, not a forecast.

The only funding scanner that nets every gap against the real cost of opening and closing both legs on live order books — 23 perp DEXs, every minute, with how long each gap usually lasts. PAID: 0.1 USDC on Base per scan, via x402 (no account; an x402-enabled client pays automatically). Every pair and every venue couple across perp DEXs, read every minute: long where funding is lowest, short where it is highest, net of opening and closing both legs at market on the live books, with how long each gap has been open and how long its past gaps lasted. Not charged if the data is not fresh.

Best bid/ask, spread in bps and the USD resting within 0.5% and 1% of mid on each side, for every live perp DEX order book.

PAID: 1 USDC on Base per plan that saves at least 20 USD (free otherwise), via x402 (no account; an x402-enabled client pays automatically). How to split one side of a large market order across perp DEXs so each live order book only absorbs what it can: the size, fee and slippage of every leg, against doing it all on the single cheapest venue. You only pay when the split saves you at least 20 USD; below that the plan comes back free, and the first call already tells you the saving.

PAID: 0.5 USDC on Base per route (free if no venue gives a figure), via x402 (no account; an x402-enabled client pays automatically). For your weekly budget and order size: on every perp DEX with a published weekly points pool, the volume it buys at the all-in cost of your size on the live book (fees + slippage), the share of this week's pool that takes once your own volume dilutes it, and the same with limit orders if they fill. Points of different venues are not comparable and are never summed.

Current funding rate of a perpetual on each perp DEX, normalised to 8 hours and annualised, with open interest and 24h volume when published. Useful for delta-neutral funding trades.

COMING SOON, Pro (0.10 USD per series, from 10 December 2026, USDC via x402). Funding, round-trip cost and spread, venue by venue, hourly as we read them, to backtest a strategy. Opens when it holds 30 days of hourly readings. Calling it now returns its status and the free tool to use meanwhile.

The perp DEXs we cover: order book type, entry-tier maker/taker fees verified in each venue's docs, the date they were checked, and the signup link.

Airdrop and points campaigns we track, ordered by the next hard date, each date from the project’s own docs, with the signup link.

Link to open an account on a perp DEX, with our referral applied when we have one.

Full ranking of the round-trip cost (fees + slippage on the live book) of a market order on each perp DEX, with fee tier, book time and the venues that give no figure and why.