Launch app
Open to anyone. Now on Raydium

pump.fun Fee Sharing, Reverse Engineered

Cap tables
/
Launch
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Reverse engineered
@usedivvy
Launch app

Up to 10 shareholders.

One creator fee, split by basis points,
frozen at launch, readable by anyone.
Shareholder { address, share_bps }
is pump.fun's own program word.

Creator Fees, Split By Basis Points. Frozen.

You pick up to 10 wallets and their cut of a coin's creator fee. The split goes into the coin's Arweave metadata at launch and stays there.

Memecoin fee splits. Nothing more.

share_bps
DIVVY
Raydium LaunchLab
pump.fun keeps the split in a program account called SharingConfig. We read a community reconstruction of its programs and rebuilt the mechanic on Raydium. Every row of the Reverse engineered page links the file we read.

admin_revoked = true.

From Block One.

On pump.fun, update_fee_shares can replace the split once, then admin_revoked flips and it stays. Here nobody holds an admin key at all.

We freezepublishpay the split by the same rules.

At most 10 wallets, sum == 10_000, no duplicates, no zero shares. Any wallet or tool can read the split back from the coin's metadata.

Their Words On Top. Ours Underneath.

Read from pump.fun, rebuilt on Raydium
checkShares
InvalidShareTotal
checkShares

Two Numbers From The Source

0%
sum == 10_000
every split
no exceptions

Every split adds up to exactly this: sum == 10_000 basis points, or the launch button stays blocked

0

Shareholders on one coin at most: shares.len() <= 10 in pump.fun's program, and in checkShares here

What pump.fun Keeps In A Program, We Freeze In A File. The JSON sits on Arweave, the coin's metadata points at it, and LaunchLab mints that metadata immutable.

From Split to Payout.

01

Split

Up to 10 wallets. Drag the bar or type percentages until it reads exactly 100%.

02

Freeze

Launch on Raydium. The split lands in the metadata in the same flow.

03

Trade

Every curve trade pays a 0.05% creator fee into the vault.

04

Claim

The creator presses Claim and split. One transaction pays every shareholder.

01
02
03
04
/
04

Frozen
vs Updated Once

Plain JSON
vs A Program Account

Creator's Press
vs Anyone's Crank

Per Wallet
vs Per Coin

Set once at launch. No admin, no update call, nothing to revoke.
Open the metadata JSON. The split sits under extensions.shares in plain text.
The creator presses Claim and split. Until then the fees wait in the vault.
LaunchLab keeps one fee vault per creator wallet. A claim pays out all of it.

On pump.fun

update_fee_shares can replace the list once, then sets admin_revoked = true.
SharingConfig is an account at a PDA. You decode it to read the shareholders.
distribute_creator_fees needs no signature from the creator. Anyone can run it.
The creator-vault belongs to the coin's SharingConfig, so each coin has its own.
Frozen
vs Updated Once

Set once at launch. No admin, no update call, nothing to revoke.

On pump.fun

update_fee_shares can replace the list once, then sets admin_revoked = true.

Plain JSON
vs A Program Account

Open the metadata JSON. The split sits under extensions.shares in plain text.

On pump.fun

SharingConfig is an account at a PDA. You decode it to read the shareholders.

Creator's Press
vs Anyone's Crank

The creator presses Claim and split. Until then the fees wait in the vault.

On pump.fun

distribute_creator_fees needs no signature from the creator. Anyone can run it.

Per Wallet
vs Per Coin

LaunchLab keeps one fee vault per creator wallet. A claim pays out all of it.

On pump.fun

The creator-vault belongs to the coin's SharingConfig, so each coin has its own.

anyone
>>>
can
_
launch
[10]
or
_
read
[?]
splits

It Is Open. Any Solana wallet can launch a coin here and split its creator fee. No list, no approval, no account.

A shareholder here is a wallet and a number of basis points. pump.fun's program calls it Shareholder and we kept the word. It covers a cut of one memecoin's creator fee and nothing else.

No equity, no dividends, no promised return.

In a split, the creator presses the button, every wallet is paid in one transaction, and every payment carries a Solscan link.

Fees exist only if people trade the coin. The creator fee on this platform is 0.05% per trade.

DIVVY
Open.
To Anyone.

Set a split, launch the coin, press Claim and split. Your wallet signs everything on Raydium LaunchLab.

Not affiliated with pump.fun.

Launch a coin
Source: lalalune