Devpass markDevpass
Xpump.fun

Devpass: the house rules, in full

How it works

A dev opens a house. You take a seat: your SOL waits in the house under your own record. When the dev launches a coin, the house buys inside the same transaction, on a curve nobody has touched. Every number below is read from the program.

The show, in under a minute

0:00 / 1:06

One evening in the hall: a seat, one transaction, ninety seconds of shut doors, the bell, the house rules. Voice with captions; the numbers in it are an example.

The show, in five acts

  1. The dev opens a house. One house per dev wallet. The dev picks the house cap (1 - 40 SOL, default 20), the most one seat can put in per launch, at most 1 - 3 launches per UTC day (default 2) and the gap between launches (default 1 h). The dev can only make these safer for seats later.
  2. You take a seat. You pick your per-launch amount (from 0.01 SOL), how many launches your deposit covers (1 - 32), and how many of the dev's launches a day you join (the j-th launch of a day buys only for seats that allow j or more). You choose how your tokens leave: keep them (preselected) or sell at the bell. Deposit = launches x (amount + a refundable token-account deposit when you keep tokens).
  3. The dev launches. One transaction: the dev's pump.fun create, then our launch instruction right after it. The program checks the create is the dev's own, for this coin, with nothing before it, and that the curve is untouched. The house buys the sum of every joining seat's amount, minus the 1 % service fee. The coin does not exist before this transaction, so nobody can buy before the house.
  4. The exit window, then the bell. For 90 s nobody can move the house's tokens. Seats that chose "sell at the bell", and anyone who flips their share during the window, are sold as ONE batch at the window end, everyone at the same average price, in small chunks. Kept tokens are delivered after the batch.
  5. The judge. 6 h after a launch anyone can judge it, with two reads 1 min apart: coin not graduated and the curve holds less real SOL than the house put in at both reads = a strike. A strike freezes the house for 24 h; 3 strikes in a row close it for good and every seat can withdraw. An overdue judgment blocks the dev's next launch.

Numbers

whatvaluemeaning
service fee1 %of each subscriber's per-launch amount, taken at the launch. Nothing on deposits, withdrawals, exits or unused SOL. The dev pays us nothing.
per-launch amount0.01 SOL and upyour buy per launch; the dev's house sets the most one seat can put in (default cap / 4)
prepaid launches1 - 32how many launches your deposit covers; after the last one you are out automatically
launches you join per day1 - 3the j-th launch of a UTC day buys only for seats that allow j or more
house cap1 - 40 SOLsum of all per-launch amounts in one house (dev picks, default 20 SOL)
dev launches per day1 - 3hard cap per UTC day (dev picks, default 2)
gap between launches1 h defaultat least 10 min, never shorter than the exit window
exit window90 safter a launch nobody moves the house's tokens; then everyone selling sells in ONE batch at one average price
dead-launch judge6 h + 1 mincoin not graduated and the curve holds less real SOL than the house put in, at two reads 1 min apart = a strike
strike24 h freeze3 strikes in a row close the house for good; every seat can withdraw

Sell at the bell, worst case: while the coin is on the curve the batch sells back the bottom-most tokens of the curve, so a launch costs a bell seat about 3.4 % of its amount at most (pump fees 2 x 1.25 % + our 1 %), whatever the dev or outsiders do. After graduation to PumpSwap this floor no longer holds. Seats that keep tokens carry their own exit timing.

Who can do what

You
Withdraw everything not committed to a launch, any time, even while the program is paused or the house is closed. Leave the house; your record and SOL stay yours.
The dev
Decides when to launch (inside the day cap, the gap, the freeze) and which coin. Cannot buy before the house, cannot sell the house's tokens, cannot move your SOL. Pays the rents of each launch (refunded) and stays the creator of the coin; creator fees stay 100 % his.
The keeper
Runs the steps anyone can run: the batch sale, settling, delivering kept tokens, the judge. If it stops, the buttons on this site do the same.
The admin
Can pause new houses, seats and launches, change parameters for future houses only (24 h delay) and the fee wallet (3 days delay). Never touches a house, a seat or a launch.
Platform
pump.fun can redirect creator fees (admin_cto / set_creator). The program is upgradeable and unaudited until the audit is published. Program Faniaz2XRiFTV5tK3hgzNZmHAPSe3CCHmedDJUujmTc9.

Honest lines

Errors

codenamemessage
6000UnauthorizedNot allowed for this signer
6001BadParamsA parameter is out of its bounds
6002BadTreasuryThe treasury must be a funded system wallet
6003TimelockThe timelock has not passed yet
6004NothingPendingNothing is pending
6005PausedNew pools, subscriptions and launches are paused
6006PoolClosedThis pool is closed
6007BadPoolCapPool cap out of bounds
6008BadPerLaunchPer-launch amount out of bounds
6009BadDayCapLaunches per day must be 1..3 and can only go down
6010BadMinGapMinimum gap between launches out of bounds
6011BadModePick AUTO (1) or HOLD (2) explicitly
6012BadDayClassDay class must be 1, 2 or 3
6013BadPrepaidPrepaid launches must be 1..32
6014PoolFullThe pool is full
6015SubscriptionBusyThis wallet still has an active or unsettled subscription here
6016NotActiveThe subscription is not active
6017TopUpTooFarAt most 32 launches ahead
6018NotEnoughFreeAmount is above the free balance
6019BelowRentFloorThe payout would leave the wallet below the rent floor
6020NotSettledSettle the earlier launches first
6021FrozenThe pool is frozen after a strike
6022DayCapReachedThe dev already used today's launches
6023TooSoonToo soon after the previous launch
6024JudgmentOverdueA judgment of an earlier launch is overdue
6025TooManyUnjudgedToo many launches waiting for judgment
6026NotTopLevelOur instruction must be top level
6027NoCreateThe previous instruction is not pump create_v2
6028WrongMintThe create is for another mint
6029BadCreateUnexpected create_v2 data
6030WrongCreatorThe coin creator is not the pool dev
6031BadFlagsMayhem / cashback / custom fee / holder reward must be off
6032PumpBeforeA pump instruction runs before the create
6033CurveTouchedThe curve was already traded
6034BadMetadataBad metadata (name 1..32, symbol 1..10 printable)
6035UriTooLongUri longer than 96 bytes
6036UriNotIpfsUri must be IPFS
6037BadAccountsWrong or missing account
6038RentTooHighpump took more than the trade and the lent headroom
6039SlippageExceededFewer tokens than the minimum
6040UnexpectedFillFill outside the fresh-curve band
6041WindowClosedThe exit window is closed
6042WindowOpenThe exit window is still open
6043NotParticipantThis subscription did not take part in that launch
6044OneFlushPerSlotOne flush per launch per slot
6045PumpInTxNo pump or PumpSwap instruction may share this transaction
6046ChunkTooBigChunk too big for the reserves
6047NotSettlingThe batch sale is not finished
6048InBatchThis share is sold in the batch; nothing to exit
6049JudgeOrderJudge launches in order
6050JudgeTooEarlyToo early to judge
6051AlreadyJudgedAlready judged
6052NotJudgedLaunch not judged yet
6053LaunchOpenSubscribers of this launch are not all settled
6054NotMigratedCoin not migrated
6055SubsLeftSubscriptions are still open
6056LaunchesLeftLaunch records are still open
6057SellBelowMinSell returned less than the minimum
6058MathMath overflow
6059ChunkTooSmallChunk too small: at least half the cap, or the whole rest of the batch