basedlong.fun

Uniswap v4 · Base · chain 8453

Markets quoted in leveraged tokens, not stablecoins.

A launch deploys a fixed 1,000,000,000-supply token and opens a Uniswap v4 pool against a Base leveraged token — ETH3X, BTC3X, uSOL3x, uSUI2x, uSOL2x — or plain WETH. No bonding curve: the launchpad mints one-sided, token-only liquidity across two ranges, so the creator supplies zero quote asset. Markets open at a $3,000–4,000 start cap by default, with an optional dev buy hard-capped at 10% of supply and filled inside the launch transaction. On-chain, FDV is denominated in raw quote units — the USD figure is a frontend conversion; there is no oracle in the contracts.

Open launch console Read the mechanics
official token basedlong.fun BLETH · WETH pair
0xd5D020e06B6f88b200b9fb895e46a3f3F3FFA54a
Basescan Trade on Uniswap Dexscreener Market row

This is the only official contract address. Anything else using the name is not ours.

Total supply
1,000,000,000
LP split
80 / 20
Price ceiling
none — open-ended
v4 fee
1.00%
Tick spacing
200
Fee split
60 / 40
Launch fee
0.0005 ETH
LP withdrawal
none

Launch console

Every field is validated against the registry bounds for the selected quote, then simulated with an eth_call preflight before the send button unlocks.

Parameters

ETH3X
Fetching quote price…

Value sent equals 0.0005 ETH. Liquidity is permanent: the launchpad holds both positions and has no withdrawal path. Only swap fees can ever leave.

Markets

All launches, read directly from the launchpad. Anyone may trigger a fee claim; proceeds route to the creator and treasury by the configured split — never to the caller.

#TokenQuoteOpening FDV Spot / tokenvs open Pending feesLinks

No launchpad address set — market data is unavailable until the contracts are deployed.

Quote lineup

Whitelisted quotes: WETH for a normal ETH-paired market, plus the leveraged tokens. Bounds are enforced on-chain by the QuoteRegistry, in raw quote units for the whole 1B supply.

Read this before you buy

  • Leveraged quote depth lives off-DEX. WETH markets trade like any ETH pair. The leveraged tokens have mint and redeem liquidity through Index Coop but almost no DEX depth on Base, so to buy into those markets you will generally have to mint the quote asset first — each card links to its acquire page.
  • Leveraged tokens decay. A market quoted in ETH3X is a relative bet against a decaying, rebalancing instrument, not a USD bet. A flat chart in quote terms can still be a loss in dollars, and the reverse.
  • Liquidity is permanent and one-sided. The launchpad holds both v4 positions with no withdrawal path. It never holds quote assets at open: the entire opening book is launch tokens sitting above the opening price.
  • No oracle, no floor. Nothing in this system reads a USD price. There is no buyback, no treasury bid, and no guarantee a market trades at or above its opening FDV.

Mechanics

The contract surface is small on purpose: one launch function, one fee claim, and a registry that gates the quote assets.

  1. 01

    Fixed supply, minted once

    1,000,000,000 tokens, 18 decimals, no mint authority after construction, no transfer tax. Rounding dust left on the launchpad is burned in the same transaction.

  2. 02

    One open-ended curve

    80% of LP supply is minted from the opening FDV up to an effectively infinite cap (~1024 quote of FDV), so the market trades like a normal constant-product curve with no price ceiling. The remaining 20% sits in a reserve range above that cap, which is never reached in practice. The pool opens exactly at the range floor, so both positions are pure token — zero quote asset from the creator.

  3. 03

    Buyers bring the quote asset

    There is no bonding curve to graduate from. The v4 range is the curve: every buy walks price up the launch range and it keeps going — no cap, no migration, LP is permanent from block one.

  4. 04

    Permanent LP, fees only

    Positions are held by the launchpad with no withdrawal path. collectFees(id) is the only exit for value, splitting accrued swap fees 60% creator / 40% protocol.

  5. 05

    Registry gating

    Each quote carries min and max opening FDV, a 1% v4 fee and tick spacing 200; the site always sends the open-ended cap. A disabled quote reverts with QuoteNotTradable.

  6. 06

    Priced in quote units

    "35 ETH3X of opening FDV" means the whole supply is worth 35 ETH3X at open. The console converts a USD start cap into quote units using the quote's NAV (Index Coop) or LI.FI's token price, and you can override the price by hand. Nothing on-chain reads USD.

  7. 07

    Dev buy, capped at 10%

    The launch call can carry devBuyQuote: the launchpad pulls that much quote from the creator, swaps it through the fresh pool in the same transaction, and sends the tokens straight back. Fills above MAX_DEV_BUY_BPS = 1000 revert with DevBuyTooLarge; a devBuyMinTokens floor guards against being front-run on the open. previewDevBuy shows the exact fill before signing.

  8. 08

    Funding the dev buy from ETH

    The console reads your quote balance and allowance. For the WETH quote it simply wraps the shortfall from your wallet. For leveraged quotes it asks LI.FI for an ETH → quote route on Base; when no DEX route exists — these are mint/redeem products with thin pool depth — it hands you to the Index Coop mint page and keeps polling until the balance lands, then unlocks the approve step.

Addresses