🚀 Pump.fun Bonding Curve Logic — Custom Implementation with $TAI Base Token

This repository contains a custom Pump.fun-style bonding-curve token launch system, upgraded to support $TAI (SPL token) as the base asset instead of SOL. It explains the logic behind minting, buying, price calculation, market cap tracking, virtual liquidity, Raydium migration, and fee distribution.

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📌 Pump.fun Flow (Original Model)

1. Mint token & buy initial supply (uses SOL)
2. Users buy on the bonding curve
3. Users sell anytime and receive SOL
4. Once the bonding curve reaches 100k MC, the token reaches migration threshold
5. $17k liquidity is deposited into Raydium LP and LP is burned

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🔄 Our Updated Requirements

✅ Replace SOL with $TAI (SPL Token)

• All buys & sells use $TAI
• Price discovery is based on TAI reserves
• LP deposited into Raydium becomes TAI–TOKEN LP

🧮 Price Calculation Using TAI

• Bonding curve price updates dynamically:

  • When users buy → token supply decreases, TAI increases
  • When users sell → token supply increases, TAI decreases

📊 Market Cap

• Original Pump.fun uses $100K market cap target
• MC is computed as:

MC = Remaining Token Supply * Current Token Price

• Price is derived from bonding curve state:

price = TAI_reserve / token_reserve

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🧰 Technical Logic Explained

You launched a token with:

• Total supply: 10,000,000,000 tokens (10B)
• You bought initial tokens with 30 SOL (virtual liquidity)

Pump.fun calculates starting price as:

starting_price = (virtual_solana + real_solana) / tokens_in_curve

Example from your case:

• Initial bought SOL: 30 SOL
• This sets token price ≈ 3e-8 per token

As users buy:

• Token supply in curve decreases
• TAI/SOL reserve increases
• Price increases
• Market cap approaches $100k threshold

When MC reaches $100k:

Your pool looks like:

11M (GOAT) : 10K SOL
10K = 9970 REAL + 30 VIRTUAL

Fee Model (Pump.fun Style):

• From real 9970 SOL (or TAI):

  • A % fee goes to platform treasury
  • Remaining SOL/TAI becomes Raydium liquidity

Raydium Step:

Deposit:

(TOKEN amount, TAI amount)

Burn LP to ensure decentralization.

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📦 Features of This Repo

• Full bonding curve implementation
• Virtual liquidity configuration
• Custom base-token support (TAI instead of SOL)
• Buy & Sell functions
• Market cap tracking
• Raydium migration logic
• Fee extraction logic
• Curve state storage
• Developer-friendly TypeScript/Anchor structure

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🧮 Bonding Curve Formula Summary

price = TAI_reserve / token_reserve
MC = circulating_supply * price

Price always increases as more TAI enters the contract.

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🛠 Installation

git clone https://github.com/yourrepo
cd pumpfun-tai
npm install

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⚙️ Environment Setup

Create .env:

RPC_URL=
WALLET_PRIVATE_KEY=
TAI_TOKEN_MINT=

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▶️ Usage Examples

Buy

await program.methods.buy(amountTAI).accounts({...}).rpc();

Sell

await program.methods.sell(amountToken).accounts({...}).rpc();

Get Curve Price

const price = await program.account.curve.fetch(curvePk);

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🌊 Raydium Liquidity Migration

When MC hits target:

• Curve closes
• Fees extracted
• Remaining TAI + token deposited into Raydium
• LP burned
• Trading moves to Raydium AMM

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📞 Contact & Support

If you want a custom Pump.fun fork, bonding curve, or token-launch infrastructure:

📨 Telegram: @terauss

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⭐ Support This Project

Please star ⭐ this repository to support development.