Pump.fun

What Is Pump.fun

Pump.fun is a Solana-based platform for launching and trading meme coins. Unlike traditional token launches, Pump.fun tokens follow a bonding curve mechanism: the price increases as more people buy, and decreases as they sell. This creates a market-driven price discovery model where supply and demand directly impact the token price in real-time.

Seashail provides 4 tools for Pump.fun interaction:

• pumpfun_list_new_coins — discover recently launched coins
• pumpfun_get_coin_info — get detailed information about a specific coin
• pumpfun_buy — buy a pump.fun token with SOL
• pumpfun_sell — sell your pump.fun tokens back to SOL

All Pump.fun tools are Solana-only. You must have a Solana wallet with SOL for gas fees.

Discovering New Coins

Use pumpfun_list_new_coins to see recent token launches. This tool returns a list of coins sorted by launch time (newest first).

The response includes:

• Mint addresses (used for buying/selling)
• Token names and symbols
• Descriptions
• Creation timestamps
• Bonding curve progress and market cap

You can configure the number of results (up to 200 coins).

This is a read-only operation — no policy approval needed.

Getting Coin Details

Use pumpfun_get_coin_info with a coin's mint address to fetch detailed information about a specific token.

The response includes:

• Name, symbol, and description
• Creator address
• Market cap and bonding curve status
• Virtual SOL and token reserves
• Associated bonding curve account addresses

This data helps you evaluate the coin's state before trading. Read-only — no policy approval needed.

Buying Coins

Use pumpfun_buy to purchase a pump.fun token. The trade is executed against the bonding curve smart contract.

Required parameters:

• mint — the token's mint address (identity-checked for safety)
• amount_sol — the amount of SOL you want to spend

Optional parameters:

• wallet — if omitted, uses your active wallet
• account_index — if omitted, uses your active account index
• usd_value — optional override for policy approval evaluation

Buy operations are subject to policy evaluation:

• enable_swap must be true in your policy
• Transaction value is checked against max_usd_per_tx and daily caps
• Tiered approval applies (may be auto-approved, require confirmation, or be blocked based on USD value)

See Policy and Approvals for how tiered approval works.

Typical Buy Workflow

1. Discover coins: pumpfun_list_new_coins
2. Investigate a specific coin: pumpfun_get_coin_info with the mint address
3. Buy: pumpfun_buy with mint and SOL amount
4. Confirm if prompted (via MCP elicitation)

Example buy:

{
  "mint": "ABC123...",
  "amount_sol": 0.5
}

This spends 0.5 SOL to buy the pump.fun token at the current bonding curve price.

Bonding Curve Mechanics

The bonding curve means:

• The more you buy, the higher the price rises for subsequent buyers
• Large buys can significantly move the price
• Price impact depends on the size of your buy relative to the curve's reserves

Selling Coins

Use pumpfun_sell to sell your pump.fun tokens back to SOL.

Required parameters:

• mint — the token's mint address (identity-checked)
• percent — percentage of your holdings to sell (0-100)

Use percent: 100 to sell your entire position.

Sell operations are subject to the same policy controls as buying.

Example sell:

{
  "mint": "ABC123...",
  "percent": 100
}

This sells 100% of your holdings for that token, receiving SOL back at the current bonding curve price.

Risk Considerations

Pump.fun trading carries extreme risks. Only trade with capital you can afford to lose completely.

Volatility

Meme coins can lose 90% or more of their value in minutes. Price movements of 50%+ in either direction within seconds are common. The bonding curve mechanism amplifies volatility: large sells crater the price, large buys spike it.

Rug Pulls

Token creators can dump their holdings at any time, often after initial hype drives up the price. This is extremely common in the meme coin space.

Liquidity Risk

Bonding curve tokens may have very thin liquidity. Large sells can move the price dramatically downward — you may receive far less SOL than expected.

No Fundamental Value

Most meme coins have no underlying utility, revenue, or real-world use case. Value is driven purely by speculation and sentiment.

Policy Safeguards

Use policy controls to limit exposure:

• Set conservative max_usd_per_tx limits
• Use max_usd_per_day to cap daily meme coin spending
• Consider separate per-wallet policy overrides for experimental trading

See Policy and Approvals for configuration details.

Notes

• For exact parameter details: Pump.fun Tools Reference
• Pump.fun tools are Solana-only — ensure your active wallet has a Solana address with SOL for gas
• Related: Swapping Guide for standard token swaps (non-bonding-curve)
• All pump.fun trades execute on-chain against the bonding curve contract — no centralized orderbook

See Also

• Troubleshooting for solutions to slippage exceeded and RPC errors
• Glossary for definitions of slippage, bps (basis points), and bonding curve