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Staked bonding curves · Solana

Every curve, staked.

Launch a coin whose reserve stakes itself from the first buy. The yield buys it back every epoch, for as long as the chain runs.

Live playground: buy, sell, set the yield, warp time

s
Sprout
$SPROUT · playground
0.000000073SOL per token
Progress18.3 / 85 SOL · 22%
Time warp
Buyback mode

How it works

Four steps, on repeat

A buyer that never sleeps, built into every launch.

The full explanation
  1. 1

    Buy

    SOL goes into the coin's bonding curve. The price rises along the curve.

  2. 2

    Stake

    The curve stakes 80% of its reserve through a liquid staking token. 20% stays liquid so sells are instant.

  3. 3

    Earn

    Staking yield builds up in the buyback tank and is harvested every epoch, about every two days.

  4. 4

    Buy back

    The yield buys the coin on its own curve. Bought tokens are burned, shared with holders, or added to liquidity.

+And then, forever

The endowment

When a coin graduates, its liquidity moves to a DEX pool and 10% of the reserve becomes its permanent endowment: staked forever, never withdrawable. Its yield keeps buying the coin back every epoch, for as long as the chain runs. Anyone can add SOL to give a coin a bigger permanent buyer.

The difference

Idle SOL, or staked SOL

Same coin, same 50 SOL in the curve. On an ordinary launchpad it sits still. On Stakeline it is staked, and the yield buys the coin back.

Ordinary launchpad

Idle
Reserve
50 SOL
Earning
0 SOL
By day 365
0.0000 SOL
Bought back
Nothing

After graduation, nothing is left working for the coin.

Stakeline

Working
Reserve
40 SOL staked
Earning
2.80 SOL/yr
By day 365
2.8000 SOL
Bought back
2.8000 SOL

After graduation, a 8.5 SOL endowment keeps buying, about 0.60 SOL a year, forever.

One year in 14s, at a 7% APY estimate. Yield varies; buybacks do not guarantee price.

Buyback calculator

Size the buyback

Buybacks grow with the reserve: twice the SOL in the curve, twice the yield. Here are the honest numbers.

40 SOL
7.0%

Liquid staking yields move with network conditions. 7% is a rough default, not a promise.

Yield per epoch0.0123 SOL
Yield per year2.240 SOL
Bought each epoch80,618
Endowment at grad8.5 SOL

32.0 SOL of 40 SOL is staked. At today's curve price the yield buys about 1.47% of supply a year. After graduation the 8.5 SOL endowment buys about 0.60 SOL a year, forever, and more if people endow it.

Yearly buyback by reserve size

0246SOL/yrENDOWMENT, FOREVER020406085

SOL in the curve →

For scale

A full curve at 7% earns about 4.76 SOL a year. That's real and it never stops, but it's small next to the trading on a busy coin. It's a steady buyer, not a price promise.

THE PLATFORM COIN

$STAKELINE

Every trade on Stakeline pays a small fee, and part of it goes to $STAKELINE holders. The busier the platform, the more flows to the people who hold it.

About $STAKELINE

Where a 1% trade fee goes

40%
30%
30%
  • Creator40%
  • Platform30%
  • $STAKELINE holders30%

Questions

Questions, answered

Where does the yield come from?
The SOL in each bonding curve is staked through a liquid staking token, which delegates it to Solana validators. The rewards those validators earn are the yield. Nothing is printed and nobody is charged for it.
How big are the buybacks?
Small and steady. A full curve at a 7% estimate earns about 0.026 SOL per epoch. Buybacks grow with the reserve, never stop, and keep going through the endowment after graduation. They are not a price promise.
Can I always sell?
20% of every curve stays liquid so sells are paid instantly. If a run of sells drains that buffer, the curve swaps some of its liquid staking token back to SOL on the spot, then rebalances at the next epoch. That swap depends on the staking token's own liquidity, which is one of the risks.
What happens at graduation?
When a curve reaches 85 SOL, its liquidity moves to a DEX pool and 10% of the reserve (about 8.5 SOL) becomes the coin's endowment: staked forever, never withdrawable, buying the coin back every epoch.
Can I add to a coin's endowment?
Yes. Anyone can endow any coin to give it a bigger permanent buyer. Endowed SOL can never be taken out.
What do the buyback modes do?
The creator chooses at launch. Burn destroys the bought tokens. Share sends them to holders. Add to liquidity pairs them with SOL and adds both to the pool.
What are the fees?
A 1% trade fee, split 40% to the coin's creator, 30% to the platform and 30% to $STAKELINE holders.
What are the risks?
Memecoins are extremely volatile, smart contracts can fail, liquid staking tokens carry their own risk, and yield varies. Read the plain-English risks before you buy anything.

Solana mainnet

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