Docs
Docs
Production reference for PumpRobin on Robinhood Chain — product mechanics, constants, contracts, and public reads.
Overview
PumpRobin is a fair-launch pad for Robinhood Chain. Primary mode today: bonding curve with constant-product pricing that graduates at 8 ETH toward Uniswap V3 liquidity.
Flow: Create → Trade on curve → Graduate → DEX liquidity / LP fees
Getting started
What is PumpRobin.fun?
A permissionless token launchpad on Robinhood Chain. Launch ERC-20s with bonding-curve trading and DEX graduation — similar in spirit to pump.fun, built for an EVM L2.
How do I connect?
Use Connect in the header. Add Robinhood Chain (ID 4663, RPC https://rpc.mainnet.chain.robinhood.com) if your wallet does not auto-detect it.
What does a launch cost?
0.0005 ETH creation fee, plus gas. Trading fee is 1.3% while on the bonding curve (1% creator + 0.3% platform).
Mechanics
Bonding curve
Constant-product AMM with virtual reserves (~1.3 ETH × 1,073,000,000 virtual tokens at default supply). Price rises as buyers enter. Anyone can sell before graduation.
Graduation
When the curve accumulates ~8 ETH, the token graduates: ETH is wrapped to WETH, a Uniswap V3 TOKEN/WETH pool (1% fee) is created and seeded full-range, and the LP NFT is locked at the dead address — then it trades like other Robinhood pairs on DEX Screener.
Creator fees
On-curve trade fee is 1.3% total — 1% to the creator and 0.3% to PumpRobin, paid on each trade.
Launch mechanics
Optional guards and metadata available on every create. Full product narrative also lives on How it works.
Dev buy (first buy)
Optionally buy your own coin inside the launch flow so you start with a real position — and can be the curve's first buyer before anyone else.
Max wallet (2%)
Cap each wallet at roughly 2% of supply early on so a single buyer cannot vacuum the float. Toggle it on the launch form; on-chain enforcement ships with factory hardening.
Anti-snipe
A short launch window aimed at bots trying to front-run real buyers. Mark it on create so traders know the intent; contract-level fee stepping is on the roadmap.
Custom supply
Standard is 1 billion. Turn on custom supply to set any amount from 1 to 1Q — virtual reserves scale so curve economics stay comparable.
Socials & metadata
Add logo, name, ticker, description, website, X, Telegram, and an optional banner. They show on explore and the token page so traders know what they're looking at.
Bonding-curve liquidity
Trading starts immediately on the virtual AMM — no manual pool setup. Real DEX liquidity is added at graduation.
Creator fees & claiming
Launching isn't only about going live — creators earn 1% of every buy and sell on their bonding curve, and PumpRobin takes 0.3% as a platform fee (1.3% total).
On deployed BondingCurve contracts, both fee shares are paid out on each trade (creator wallet + platform collector). Fee-share splits among multiple wallets (metadata), payout redirect, and post-graduation Uniswap LP fee collection are on the roadmap — see Roadmap for timing. Platform also earns the 0.0005 ETH creation fee.
1%
Creator share
Of every bonding-curve trade
0.3%
Platform share
PumpRobin fee on every trade
1.3%
Total trade fee
Taken on each buy & sell
Fair by design
Trust comes from transparent math and contract-enforced rules — not marketing copy alone.
Transparent curve math
Price follows constant-product virtual reserves (x·y = k). Progress to graduation is visible on every card and token page.
Creator + platform fees on-chain
Every bonding-curve trade takes 1.3% total — 1% to the creator and 0.3% to PumpRobin. Paid instantly in the same transaction.
Launch options recorded
Dev buy, anti-snipe, max wallet, community flags, and socials are stored with the token so the UI can surface intent clearly.
Locked LP at graduation
After graduation: Uniswap V3 1% TOKEN/WETH pool with permanently locked LP NFT — principal not withdrawable. Same venue as top Robinhood memes on DEX Screener.
Chain
Key constants
Contracts
Source lives in /contracts: PumpRobinFactory, BondingCurve, PumpRobinToken. Deploy to mainnet/testnet, then set NEXT_PUBLIC_FACTORY_ADDRESS.
Factory status
Configured: 0x5C8057D5f989D33DE2D5597Ef612a4C3c0Fe3266
Shared infra on Robinhood Chain: WETH 0x0Bd7D308…
Public APIs
Light JSON reads for catalog and stats. Full endpoint reference lives on the developers page.
GET /api/tokens— token catalogGET /api/trades— trade historyGET /api/platform/stats— aggregatesGET /api/analytics— series for charts
FAQ
How much does it cost to launch a token?
0.0005 ETH creation fee, plus gas. After that you only pay normal network gas for buys, sells, and (when live) fee claims.
How do I earn as a creator?
You earn 1% of every bonding-curve trade on your token. PumpRobin takes 0.3% (1.3% total). Fees are paid on each trade.
Do I need to deploy my own API?
No. Use the site UI, call our public JSON routes, or integrate contracts directly once the factory is deployed.
Are launches on-chain today?
Bonding-curve math and registry persistence are live in the app. Set NEXT_PUBLIC_FACTORY_ADDRESS after deploying PumpRobinFactory to create tokens fully on-chain.
Where is Uniswap migrate?
On graduation (~8 ETH), BondingCurve wraps ETH to WETH, creates a Uniswap V3 TOKEN/WETH pool at the 1% fee tier (same as VLAD / CASHCAT / PONS on DEX Screener), seeds a full-range locked LP, then the token page routes trades via the Uniswap Trading API.
Are fees transparent?
Yes — 1.3% total on bonding-curve trades (1% creator + 0.3% platform). Creation fee is 0.0005 ETH.