Holding cap
Sets the most any one wallet can own, as a share of supply. Selling back to the curve always works.
Most one wallet can hold0.1–5 % supply · default 1
As a share of the total supply.
How it works
Rules that live inside the coin.
Every modable.fun coin carries its own rulebook. Solana reads it on every buy, sell and transfer, and anything that breaks a rule simply doesn't go through. The mods are locked the moment the coin launches: not the creator, not us, nobody can change them. Once the curve fills and the coin moves to pump.fun, they switch off.
Mods in action
Watch the mods work.
Launch protection
Holding cap
wallet 1
wallet 2
wallet 3
wallet 4
wallet 5
cap
Buyers come in.
Launch protection
Early-bird fee
50%fee now
0s
+2m
+4m
+6m
+8m
+10m
Bots that buy in the first seconds pay a big fee.
Launch protection
Opening cap
launch cap
0:00
In the first minutes, each wallet can only take a little.
Sell limits
Dump shield
their bag
sold this time
A big holder wants out.
Buy fees
Burn on buy + holder rewards
buyer
🔥
keptburnedto holders
Someone buys.
Every token
Graduates to pump.fun
bonding curve
pump.fun coin, shared to holders
Buys fill the bonding curve.
6 mods
Launch protection
Keep the first minutes fair: limits on how much one wallet can grab, and costs for bots that rush in.
Growing cap
The holding cap begins tiny and grows on a clock, so the first seconds can't grab a big bag.
Starting cap0.01–5 % supply · default 0.1
Wallet cap at launch.
Double each period
On: the cap doubles. Off: it rises by a fixed step.
Rises by0.01–5 % supply · default 0.1
Added to the cap every period (ignored when doubling).
Every1–1440 minutes · default 5
How often the cap rises.
Opening cap
An extra-tight holding cap for the first minutes after launch. Stacks with your other caps.
Lasts1–60 minutes · default 2
How long the tight cap stays on.
Cap while it lasts0.05–5 % supply · default 0.5
Most one wallet can hold during that time.
Block limit
Caps how many buys fit in one Solana block, so nobody scoops the launch in a single burst. Sells always go through.
Buys allowed per block1–20 trades · default 3
Any more in the same block are refused.
Tip blocker
During the opening window, buys carrying huge priority fees or Jito tips are refused. Sells always go through. A tip sent from a separate transaction in the same Jito bundle can slip past, so treat it as a speed bump, not a wall.
Active for0–1440 minutes · default 10
0 = always.
Max priority fee0–0.05 SOL · default 0.002
Normal buyers pay well under 0.001 SOL.
Max Jito tip0–0.05 SOL · default 0.002
Tips to Jito's tip accounts.
Early-bird fee
The trading fee opens high and slides down to the normal 1% over the first minutes, making it expensive to snipe. The curve itself charges it, whatever app people buy with. Your own launch buy pays just 1%, and the fee is split like any trading fee.
Starting fee2–50 % fee · default 25
Fee on the very first trades.
Falls to 1% over1–60 minutes · default 2
Drops a little every 6 seconds.
3 mods
Buy fees
Paid in coins on every buy, in the same transaction: burned for good, or sent to a pot for holders.
Big-buy fee
modable.fun onlyAbove a size you choose, buys pay a fee that is burned, rising to the full rate for the largest buys. Small buys pay nothing.
Free up to0–5 % supply · default 0.5
Buys this size or smaller pay nothing.
Full fee from0.1–10 % supply · default 2
Buys this size or bigger pay the full fee.
Top fee1–50 % of buy · default 10
Burned from the largest buys; in between it climbs evenly.
Burn on buy
modable.fun onlyEvery buy burns a slice of what it bought. Supply only goes down, so each holder's share grows.
Burned from every buy0.1–20 % of buy · default 2
Gone for good.
Holder rewards
modable.fun onlyEvery buy sends a slice into a pot for holders, split by how much each wallet held while it filled. The pot opens when the coin graduates (if it never does, it stays locked).
To holders from every buy0.1–20 % of buy · default 2
Split by what each wallet held at the time.
4 mods
Sell limits
Shape how coins can leave: smaller sells for big bags, size limits, or set trading hours.
Size limit
One size limit for every buy, sell and transfer, as a share of supply. It applies to everyone.
Largest single move0.05–10 % supply · default 0.5
Biggest buy, sell or transfer, as a share of supply.
Dump shield
Separate limits for buys and sells: buying stays easy, but no single sell can unload a big position.
Largest buy0–5 % supply · default 2
0 = no limit on buys.
Largest sell0.05–2 % supply · default 0.25
Keep it below the buy limit to stop dumps.
Whale brake
Small wallets sell freely. The bigger the bag, the smaller each sell is allowed to be.
Cap for small holders0.05–5 % supply · default 1
Most a small holder can sell at once.
Cap for the biggest bags0.01–1 % supply · default 0.1
Least any wallet can sell at once.
Bag size for the smallest cap0.5–10 % supply · default 3
Wallets holding this much get the smallest cap.
Trading hours
Buys and sells only work during the hours you set (UTC), like an exchange that opens and closes. Sending works around the clock.
Opens at0–23 hour, UTC · default 14
Hour of the day, UTC.
Closes at1–24 hour, UTC · default 22
At least an hour after opening (24 = midnight).
Weekdays only
Closed on Saturday and Sunday (UTC).
2 mods
Trading venue
Decide where the coin can move: only through its market, or only passed from wallet to wallet.
Market-only
The coin only moves through its market. Sending between wallets is refused, so nothing changes hands off-market.
Pass-it-on
Anyone can buy from the curve, but you can't sell back what you bought yourself: you pass it to another wallet, and tokens you received can be sold. (Your own second wallet counts as another wallet.)
Mixing mods
Stack as many as you like
A few pairs do the same job, so they can't be picked together:
- Holding cap + Growing cap (both cap how much one wallet holds)
- Size limit + Dump shield (both cap the size of a trade)
- Dump shield + Whale brake (both cap the size of a sell)
- Market-only + Pass-it-on (they are opposites)
Pass-it-on works per account: what a wallet buys from the curve it can't sell back itself, only pass on, and what it receives it can sell. Solana sees wallets, not people, so your own second wallet counts as another wallet. Trading hours pause buys and sells outside the chosen hours (sending always works) and must open at least an hour on each chosen day.
For creators
Earn from every trade
A quarter of every trading fee on your coin goes to you. Your own wallet plays by the same mods as every buyer, so your first buy has to fit under your coin's caps too. Selling back to the curve is never blocked by a holding cap.
Launch a coin