# Pool ## Contract info **Contract name:** Swap **Contract address** * 4Pool: 0x417E9d065ee22DFB7CC6C63C403600E27627F333 * Starlay 4Pool: 0x0fB8C4eB33A30eBb01588e3110968430E3E69D58 * BAI Metapool: 0xD18aD1e2992Da974b5A8d69377e6aB3b16e30F29 * JPYC Metapool: 0x3cd1Fa4EeeFdf6c30E66c66A474e8E4dd509f54c * WBTC Metapool: 0xD25Cf814EeE54840A08Db8dfAbFE445B1DE37f0f * WETH Metapool: 0x2d5Da7c463B3E8f4CF1AF08a1aA0a5DB9BB644F7 * WBNB Metapool: 0xC9d4f937Fa8e0193b46817a41435a262867ff090 * oUSD Metapool: 0xD18AbE9bcedeb5A9a65439e604b0BE8db0bdB176 * nASTR Stablepool: 0xEEa640c27620D7C448AD655B6e3FB94853AC01e3 View [Sirius on Github](https://github.com/SiriusFinance/siriusfinance-contract) > For showing TVL/APR, please refer to: ## Interfaces ## Write functions ### **addLiquidity** ``` void addLiquidity(uint256[] amounts, uint256 minToMint, uint256 deadline); ``` ### **removeLiquidity** ``` removeLiquidity(uint256 amount, uint256[] minAmounts,uint256 deadline); ``` ### **removeLiquidityImbalance** ``` removeLiquidityImbalance(uint256[] amounts, uint256 maxBurnAmount, uint256 deadline); ``` ### **removeLiquidityOneCoin** ``` removeLiquidityOneCoin(uint256 tokenAmount, uint256 tokenIndex, uint256 minAmount, address receiver); ``` ## Read functions ### **getA** ``` getA() external view returns (uint8 A); ``` ### **getVirtualPrice** ``` getVirtualPrice() external view returns (uint8 virtualPrice); ``` ### **getTokenBalance** ``` getTokenBalance(uint8 tokenIndex) external view returns (uint8 tokenBalance); ``` ### **getTokenIndex** ``` getTokenIndex(string tokenAddress) external view returns (uint8 tokenIndex); ``` ### **paused** ``` paused() external view returns (bool isPaused); ``` ### **swapStorage** ``` swapStorage() external view returns ( uint8 initialA, uint8 futureA, uint8 initialATime, uint8 futureATime, uint8 swapFee, uint8 adminFee, string lpTokenAddress ); ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.sirius.finance/development/smart-contracts/pool.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.