Pump.fun Skill for MoltBot

An open-source MoltBot skill that enables buying, selling, and launching tokens on Pump.fun using the PumpPortal Local Transaction API.

Features

• Buy Tokens: Purchase tokens using SOL with configurable slippage
• Sell Tokens: Sell tokens by amount or percentage (e.g., "50%", "100%")
• Launch Tokens: Create and launch new tokens with custom metadata
• Local Signing: All transactions are signed locally for maximum security
• Multi-Pool Support: Automatic pool selection (pump, raydium, pump-amm, etc.)

Installation

Prerequisites

• Node.js v22 or higher
• MoltBot installed and configured
• A Solana wallet with SOL for trading

Install Dependencies

cd pump-fun-skill
npm install
npm run build

Add to MoltBot

Copy the skill to your MoltBot skills directory:

# For managed skills (globally available)
cp -r pump-fun-skill ~/.clawdbot/skills/

# Or for workspace skills (project-specific)
cp -r pump-fun-skill /path/to/your/workspace/skills/

Configuration

Required Environment Variables

export SOLANA_PRIVATE_KEY="your-base58-encoded-private-key"

Optional Environment Variables

# Custom RPC endpoint (recommended for production)
export SOLANA_RPC_URL="https://your-rpc-endpoint.com"

# Priority fee in SOL (default: 0.0005)
export PUMP_PRIORITY_FEE="0.001"

# Default slippage percentage (default: 10)
export PUMP_DEFAULT_SLIPPAGE="15"

MoltBot Configuration

Add to your ~/.clawdbot/moltbot.json:

{
  skills: {
    entries: {
      "pump-fun": {
        enabled: true,
        env: {
          SOLANA_PRIVATE_KEY: "your-private-key",
          SOLANA_RPC_URL: "https://your-rpc-endpoint.com"
        }
      }
    }
  }
}

Usage

Via MoltBot Chat Commands

# Buy tokens
/pump-buy 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU 0.1

# Buy with custom slippage
/pump-buy 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU 0.5 15

# Sell specific amount
/pump-sell 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU 1000000

# Sell percentage of holdings
/pump-sell 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU 50%

# Sell all tokens
/pump-sell 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU 100%

# Launch a new token
/pump-launch "My Token" MTK "An amazing new token" 1

Via CLI

# Build first
npm run build

# Buy tokens
node dist/cli.js buy <mint> <amount_sol> [slippage]

# Sell tokens
node dist/cli.js sell <mint> <amount|percentage> [slippage]

# Launch token
node dist/cli.js launch <name> <symbol> <description> [dev_buy_sol]

Programmatic Usage

import { buyTokens, sellTokens, launchToken } from 'pump-fun-skill';

// Buy 0.1 SOL worth of tokens
const buyResult = await buyTokens(
  '7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU',
  0.1,
  { slippage: 15 }
);

if (buyResult.success) {
  console.log('Transaction:', buyResult.data.explorerUrl);
}

// Sell 50% of your tokens
const sellResult = await sellTokens(
  '7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU',
  '50%'
);

// Launch a new token
const launchResult = await launchToken(
  'My Token',
  'MTK',
  'The best token on Solana',
  {
    devBuyAmountSol: 1,
    twitter: 'https://twitter.com/mytoken',
    website: 'https://mytoken.com'
  }
);

if (launchResult.success) {
  console.log('Token launched:', launchResult.data.pumpFunUrl);
}

API Reference

buyTokens(mint, amountSol, options?)

Buy tokens on Pump.fun.

Parameter	Type	Description
mint	string	Token contract address
amountSol	number	Amount of SOL to spend
options.slippage	number	Slippage tolerance (default: 10%)
options.priorityFee	number	Priority fee in SOL
options.pool	string	Pool to use (auto, pump, raydium, etc.)

sellTokens(mint, amount, options?)

Sell tokens on Pump.fun.

Parameter	Type	Description
mint	string	Token contract address
amount	number | string	Token amount or percentage (e.g., "50%")
options.slippage	number	Slippage tolerance (default: 10%)
options.priorityFee	number	Priority fee in SOL
options.pool	string	Pool to use (auto, pump, raydium, etc.)

launchToken(name, symbol, description, options?)

Create and launch a new token.

Parameter	Type	Description
name	string	Token name (max 32 chars)
symbol	string	Token symbol (max 10 chars)
description	string	Token description
options.devBuyAmountSol	number	Initial dev buy in SOL
options.imagePath	string	Local path to token image
options.imageUrl	string	URL to token image
options.twitter	string	Twitter profile URL
options.telegram	string	Telegram group URL
options.website	string	Website URL

Security Considerations

1. Private Key Safety: Never share your private key. Use a dedicated trading wallet.
2. Local Signing: All transactions are signed locally - your private key is never sent to any server.
3. Test First: Always test with small amounts before trading larger sums.
4. RPC Endpoint: Consider using a private RPC endpoint for better reliability and privacy.

Fees

• PumpPortal API: 0.5% per trade
• Solana Network: Standard transaction fees
• Priority Fees: Configurable (default: 0.0005 SOL)

Supported Pools

Pool	Description
pump	Pump.fun bonding curve
raydium	Raydium AMM (graduated tokens)
pump-amm	Pump.fun AMM
raydium-cpmm	Raydium CPMM
bonk	Bonk launchpad
auto	Automatic selection (recommended)

Troubleshooting

"SOLANA_PRIVATE_KEY environment variable is required"

Set your private key:

export SOLANA_PRIVATE_KEY="your-base58-private-key"

"Invalid private key format"

Ensure your private key is base58 encoded (the format used by Phantom and other Solana wallets).

"Transaction failed: insufficient funds"

Make sure your wallet has enough SOL for the trade plus transaction fees.

"Slippage exceeded"

Increase the slippage parameter or try again when the market is less volatile.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT License - see LICENSE for details.

Disclaimer

This software is provided as-is. Trading cryptocurrencies involves significant risk. Always do your own research and never trade more than you can afford to lose.

Credits

• MoltBot - The AI assistant platform
• PumpPortal - The Pump.fun API provider
• Pump.fun - The token launchpad