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pump.fun, reverse engineered

pump.fun, reverse engineered

Its holder rewards, rebuilt on Raydium. The creator fee vault, paid to holders pro rata.
@hodlrpad
Launch appLaunch a coin

Live holders

Live holders
Any LaunchLab coin

One column per wallet, height by balance, read from chain a moment ago.

Open the board

distribute_fee_to_holders

pump.fun pays a coin's holders out of its creator fee. We read the program and rebuilt the payout on Raydium LaunchLab.

Read the source

One vault per creator wallet

LaunchLab keeps a single creator fee vault per wallet, across all its coins. The creator fee is 0.05% of every trade.

See the vaults

One vault per creator wallet

LaunchLab keeps a single creator fee vault per wallet, across all its coins. The creator fee is 0.05% of every trade.

See the vaults

Live on Raydium LaunchLab
The creator fee, rerouted
On pump.fun a holder-reward coin hands its creator fee to the people holding it. Raydium never shipped that. So we rebuilt it: holder rules frozen at launch, balances read from chain, and one button that pays the whole vault out pro rata.
[ → ]Holder rewards is

Pro rata by balance

Rules frozen at launch

Read from chain

One button, one popup

Pools never qualify

From launch to payout

02
Every trade pays 0.05%
02
creator_fee
04
Holders read from chain
04
getProgramAccounts
06
Claim and pay, one popup
06
distribute_fee_to_holders
01
Launch on LaunchLab
01
create_v2
03
One vault per creator
03
creator fee vault
05
Split pro rata
05
amounts: Vec<u64>
01
Launch on LaunchLab
01
create_v2
02
Every trade pays 0.05%
02
creator_fee
03
One vault per creator
03
creator fee vault
04
Holders read from chain
04
getProgramAccounts
05
Split pro rata
05
amounts: Vec<u64>
06
Claim and pay, one popup
06
distribute_fee_to_holders

For creators

Launch with your holder rules frozen in the coin's metadata.

Press one button: the vault is claimed and paid out in the same signing.

Your wallet signs every transfer. Nobody else holds the fees.

One vault holds the fees of all your coins. Each press pays all of it to one coin's holders.

For holders

Hold the coin. That is the whole job.

Your cut is your balance over the qualifying total.

See the split before it happens, live from chain.

Every payout is a SOL transfer you can check on Solscan.

See what we reverse engineered

pump.funreverseengineeredonRaydium

01

distribute_fee_to_holders

pump.fun: an authority key pays holders from the coin's holder-rewards PDA.
  • Amounts worked out off chain, one per wallet
  • Native SOL or the quote token
  • The PDA is never left under rent
How we rebuilt it

update_holder_reward_config

pump.fun's admin switch. It turns holder rewards on and names who may pay out.
  • is_holder_reward_enabled
  • holder_reward_claim_authority
  • Here: the creator's own wallet
Read the switch

create_v2 · is_holder_reward

    On pump.fun the coin's creator becomes the holder-rewards PDA.
  • No person can claim the fee
  • Here: rules frozen in the metadata
  • The creator presses, holders get paid
See the launch

Get started

Start launching

Pick your holder rules, freeze them in the metadata, launch on LaunchLab.

Launch a coin

Start trading

Every LaunchLab coin, live. Buy on the curve, hold, get counted.

Open the board

Start paying

Creators: see your vault and pay your holders in one signing.

See the vaults

Start reading

The pump.fun files we read, line by line, and what runs where.

Read the source
Live fromchain
Payouts, vaults and fees, read from Solana when you open the page
Latest payouts

Reading this pad's payouts from chain…

Creator fee (read from chain)
0.05%
Pad key
LaunchLab
HODLR logoHODLR

Pad/

Source/

Chain/

Holder rewards re-implemented on Raydium LaunchLab from a community reconstruction of pump.fun's public programs (lalalune/pumpfun-source). Not affiliated with pump.fun or Raydium.