Uniswap Base Launch
Launch a Base ERC-20 token on Base Uniswap V2 or Uniswap V3 with WETH liquidity, staged launch buys, optional tax controls, and starter strategies.
Sumo supports Base launches through Base Uniswap V2 and Base Uniswap V3. Both flows deploy a Base ERC-20 launch token, create a WETH pool, add initial liquidity while public trading is still closed, run launch-wallet buys, then open public trading.
The main differences between the two launch methods:
| Base Uniswap V2 | Base Uniswap V3 | |
|---|---|---|
| Pool type | Uniswap V2 pair | Uniswap V3 pool with a selectable fee tier |
| Liquidity | V2 reserves held by the dev wallet | Full-range V3 position NFT held by the launch contract |
| Tax controls | Optional taxes, wallet limits, and tax clog | Not available - V3 launch tokens are tax-free |
Prerequisites
Before launching, make sure you have:
- Token metadata ready: name, ticker, image, description, and social links
- Total supply and token decimals
- ETH on Base for deployment, pool setup, initial liquidity, launch buys, and gas buffers
- A launch plan: target supply control, pool-token percentage, bundle wallet count, and optional tax settings (V2 only)
- A wallet plan: use ready wallets from private keys, Wallet Farm, or another profile, or create new Base wallets / buy aged Base wallets through Wallet Marketplace during the wizard
Base WETH Quote
Base Uniswap launches use WETH as the quote token. Operators enter ETH amounts in the wizard; Sumo stores WETH quote metadata on the active profile.
Launch Flow
1. Info
Choose Base Uniswap V2 or Base Uniswap V3 in the Launchpad field, then enter the token and profile details.
| Field | Required | Description |
|---|---|---|
| Launchpad | Yes | Select Base Uniswap V2 or Base Uniswap V3. The launchpad is locked after the draft is saved. |
| Profile Name | Yes | Internal Sumo profile name used after launch |
| Token Name | Yes | ERC-20 token name |
| Ticker | Yes | ERC-20 token symbol, auto-uppercased |
| Total Supply | Yes | ERC-20 total supply before decimals |
| Decimals | Yes | ERC-20 display decimals, commonly 18 |
| Image | Yes | JPG or PNG image, up to 2 MB |
| Description | No | Public token description |
| X, Telegram, Website | No | Public social links attached to the profile |
2. Buy Mode
Both Base Uniswap launch methods use the EVM buy setup controls.
| Setting | Description |
|---|---|
| Supply Control Target | Total supply controlled by dev-retained supply plus launch-wallet buys. Range: 1% to 99.99%. |
| Initial Liquidity ETH | ETH supplied by the dev wallet during pool setup. |
| Initial Liquidity Tokens | Percentage of total supply supplied to the pool. The remainder stays with the dev wallet. |
| Pool Fee Tier | V3 only. Fee charged by the Uniswap V3 pool on every swap: 0.01%, 0.05%, 0.30% (default), or 1.00%. Initial liquidity always uses the canonical full range. |
| Estimated ETH Required | Estimated initial liquidity, launch buys, gas buffers, and CEX funding buffers when enabled. |
| Estimated Market Cap | Estimated from pool composition after launch buys, using the ETH/USD reference price. |
| Dev Supply | Read-only value derived from total supply minus pool-token percentage. |
| Bundle Buy | Read-only value derived from supply-control target minus dev-retained supply. |
| Bundle Wallets | Number of Base wallets used for launch buys. Base launch methods support up to 200. |
| Funds Per Bundle Wallet | ETH reserved per bundle wallet for gas. Minimum 0.01 ETH. |
| CEX Funding | Optional Husher funding path for distributing ETH to launch wallets. |
| CEX Funding Buffer Per Wallet | Extra ETH added per wallet when CEX funding is enabled. Minimum 0.01 ETH. |
| Advanced Controls | Slippage (labelled Pool Setup Slippage for V3), bundle supply jitter, and - for V2 - bundle priority fee in gwei. |
Token cleanup and holder wallets are not available for Base launches; they are specific to Robinhood and Stable launch methods.
Tax Controls (V2 only)
Base Uniswap V2 launch tokens support the same tax controls as the other EVM V2 launch methods. Tax controls are optional and disabled by default; when disabled, the token deploys from the no-tax contract template. Base Uniswap V3 launch tokens are always tax-free.
| Setting | Description |
|---|---|
| Initial Buy Tax / Initial Sell Tax | Taxes used during the initial post-launch tax window. |
| Final Buy Tax / Final Sell Tax | Taxes used after the tax switchover block window. |
| Tax Switchover Blocks | Number of blocks before final taxes replace initial taxes. Base defaults to 3,000 blocks, longer than the Ethereum default. |
| Max Supply Per Wallet Limit | Optional maximum token balance per non-excluded wallet. |
| Tax Clog | Accumulates tax tokens on the contract and allows swaps to ETH for the tax wallet. |
| Max Tax Swap Amount | Maximum tax-token amount sold in one automatic swap. |
| Min Blocks Between Tax Swaps | Cooldown between automatic tax-token swaps. |
3. Wallets
Add, import, or generate wallets for each required Base role.
| Role | Description |
|---|---|
| Dev Wallet | Deploys the token, creates the pool, adds liquidity, opens trading, and receives retained supply. |
| Tax Wallet | V2 launches with tax enabled only. Receives tax proceeds and submits later tax or limit updates. |
| Bundle Wallets | Execute launch buys before public trading is opened. |
You can use ready wallets, create new wallets, or buy aged wallets at this step. Ready-wallet paths include importing private keys, pulling wallets from Wallet Farm, or reusing wallets from another profile. Additional paths include creating new wallets or buying aged inventory from Wallet Marketplace.
Holder, sniper, and injection wallets are not used by Base Uniswap launches.
4. Funding
Save the draft before funding. If CEX funding is enabled, deposit the estimated Base ETH into the funding wallet, check the balance, then use Fund to distribute ETH through Husher. If CEX funding is disabled, fund the dev, tax, and bundle wallets directly and use Check Balances.
The funding table tracks ETH requirements for the dev and bundle wallets. It supports address copying, allocation randomization, per-wallet allocation edits, and balance checks. The dev allocation and final bundle allocation are auto-balanced from the target.
5. Strategies
Optionally add starter strategies to the profile before launch. You can configure Counter Trade, DCA, and Limit Order strategies by hand, or apply a strategy preset: Sumo ships built-in Hyped, Standard, and Staircase presets, and your org can save its own presets for reuse across launches and imports. Strategies are saved with the draft and can be reviewed after the token is live.
6. Launch Preview
For Base Uniswap V2, the preview action sequence is:
- Deploy Token - Deploys the generated Base ERC-20 launch token from the dev wallet.
- Create Pool - Creates the Base Uniswap V2 pool, sets launch-wallet fee exemptions, and adds initial liquidity while public trading remains closed.
- Launch - Starts the durable launch runner. It submits bundle-wallet buys in batches, opens public trading after the launch buys are confirmed, activates the profile, and submits ownership renounce.
For Base Uniswap V3, the sequence has the same shape:
- Deploy Token - Deploys the ERC-20 launch token from the dev wallet with the selected fee tier baked in.
- Create Pool - Creates the token/WETH Uniswap V3 pool, sets launch-wallet exemptions, and mints the full-range liquidity position while public trading remains closed. The preview shows the Position NFT ID once minted.
- Launch - Starts the durable launch runner for bundle-wallet buys with live buy progress, opens public trading, activates the profile, and submits ownership renounce.
Background Launch Runner
Base launches do not hold the browser request open for every wallet buy. After you click Launch, Sumo records progress on the project and continues the launch-wallet buy runner in the background.
After Launch
When all launch buys confirm and public trading opens, the profile becomes active and opens in Live Trading. For V2 launches with tax enabled, you can manage taxes or limits and withdraw accumulated tax tokens from the supported launch-token controls.