How Icarus works

Overview#

Launching on Pump.fun normally means one chain, one wallet, and a coin that trades against SOL. Icarus changes that: you pay with HYPE or SOL, your coin's bonding curve is priced in HYPE, and one launch targets both Pump.fun and Elysium. A launch is two things:

Everything else is automatic: Relay turns your payment into HYPE on Solana, the launch transaction is built and signed, and your dev-buy tokens are delivered to the Solana address you choose.

Quickstart#

1. Open the launch form. Go to Launch a coin.
2. Describe the coin. Upload a square image (PNG, JPG, WEBP or GIF, up to 5 MB), then add a name, ticker and description.
3. Choose a dev buy. Enter it in SOL, as on Pump.fun. It's converted to HYPE at the live price and spent on your coin in the launch transaction. 0 is fine.
4. Pick how to pay. HYPE (a deposit on HyperEVM) or SOL (one signature from your Solana wallet). See Two ways to pay.
5. Set the coin owner. The Solana address that becomes the creator. Paying in HYPE also asks for a HyperEVM refund address.
6. Pay. Send the exact HYPE amount to your one-time address, or approve the SOL payment in your wallet. The status page updates live until your coin is trading.

Multichain: Pump.fun + Elysium#

Icarus is a multichain launchpad. Every coin is paired to HYPE, and one launch targets every chain Icarus supports:

Two ways to pay#

	HYPE	SOL
How you pay	Send to a one-time HyperEVM address	Approve one transaction in your Solana wallet
Wallet needed	Any HyperEVM wallet	A Solana wallet, connected on the form
What Relay does	Bridges your HYPE to Solana	Swaps your SOL to HYPE on Solana
Refunds go to	Your HyperEVM refund address	The wallet that paid
Your coin	Identical either way: paired to HYPE, live on Pump.fun, queued for Elysium testnet

How it works#

A launch moves through six parties. Each arrow is a real on-chain or off-chain step.

Your wallet

HYPE on HyperEVM

deposit

Deposit address

Relay, one-time

bridge

Relay bridge

Fills on Solana

HYPE lands on Solana

Launcher

Receives Solana HYPE

launch tx

( )

Pump.fun

create_v2, quoted in HYPE

tokens + fees

Coin owner

Your Solana address

Launch lifecycle#

Every launch is a small state machine. The status page polls it and advances it one step at a time; each transition is claimed atomically, so a launch can never be executed twice.

Getting HYPE#

Where your HYPE is	What to do
HyperEVM	Ready to launch. Send it to your deposit address.
Hyperliquid core	Transfer it to HyperEVM in the Hyperliquid app, then launch.
SOL on Solana	Pay with SOL right on the launch form: your wallet signs one Relay swap and the launch is funded in HYPE.

Costs & fees#

A launch with a 0.5 SOL dev buy breaks down like this:

• Dev buy: what you enter in SOL, converted to HYPE at the live price and spent on your own coin.
• Overhead (0.03 SOL, charged in HYPE): account rent for the mint and bonding curve, the token transfer to your wallet, and network fees. The launcher pays these in SOL on your behalf.
• Bridge cost: Relay's fee (under 1%) is already included in the amount you are asked to send. There is nothing extra to pay.
• Pump.fun fees: standard protocol and creator fees on every trade, including your dev buy.

Ownership & creator fees#

The Solana address you enter as coin owner is written on-chain as the coin's creator at mint time. That has two consequences:

• Pump.fun creator fees from every trade accrue to that address, and only it can claim them.
• The dev-buy tokens are transferred to that address right after the coin goes live.

Metadata & coin page#

Every coin gets a permanent page at icarusfun.xyz/coin/<mint>. Its mint address is reserved the moment you open the launch form, so the page URL can be written into the coin's on-chain metadata as its website. Explorers, DexScreener and Pump.fun all link back to it.

{
  "name": "My Token",
  "symbol": "TOKEN",
  "description": "…",
  "image": "https://<gateway>/ipfs/<cid>",
  "website": "https://icarusfun.xyz/coin/<mint>",
  "twitter": "https://x.com/…",
  "createdOn": "https://icarusfun.xyz"
}

Metadata is pinned to IPFS and is immutable once the coin is minted.

Bonding curve#

New coins trade on a Pump.fun bonding curve quoted in HYPE: price rises as supply is bought, and buyers pay in HYPE. When the curve is fully bought, the coin graduates and its liquidity migrates to a Pump AMM pool against HYPE automatically. Coin pages show curve progress live.

Safety & refunds#

• Refunds go back to you. If Relay can't fill, HYPE returns to your HyperEVM refund address and SOL returns to the wallet that paid.
• Exactly-once launches. Each launch is claimed atomically before minting, and a stuck transaction is only retried after its blockhash has expired, so a coin is never minted twice.
• Mint keys are encrypted at rest and never leave the server. A reserved mint can be used once.
• No custody after launch. Tokens and any surplus HYPE are sent straight to the coin owner.

FAQ#

Glossary#

HYPE

Hyperliquid's native token. You pay with it on HyperEVM; on Solana it's the Wormhole-bridged version.

Icarus

The multichain launchpad for HYPE at icarusfun.xyz: launch once, live on Pump.fun and Elysium.

HyperEVM

Hyperliquid's EVM chain (chain id 999), where HYPE payments are sent.

Elysium

Kinetiq's Layer 2 for Hyperliquid: 100ms blocks, HYPE as gas. Icarus supports it as a testnet preview.

Relay

The cross-chain router that bridges HYPE from HyperEVM or swaps SOL into HYPE on Solana, and powers the Swap page.

Quote asset

The token a bonding curve is priced in. For every icarusfun.xyz coin it's HYPE.

Launcher

The icarusfun.xyz Solana wallet that receives bridged HYPE and sends launches.

Dev buy

HYPE spent buying your own coin inside the launch transaction.

create_v2

The Pump.fun instruction that mints a new coin and opens its bonding curve.

Graduation

When the bonding curve completes and liquidity moves to a Pump AMM pool.