Documentation - Notus API

This endpoint adds liquidity to an existing position by swapping a single input token into the two pool tokens and increasing the position.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

walletAddress*string

The wallet address (in hexadecimal format) that will provide the liquidity.

chainId*number

The blockchain network where the liquidity will be provided. Supported EVM chains:

Arbitrum One: 42161
Avalanche: 43114
Base: 8453
BNB Smart Chain: 56
Ethereum: 1
Gnosis: 100
OP Mainnet: 10
Polygon: 137
X Layer Mainnet: 196
Robinhood Chain: 4663

transactionFeePercent?number

Percentage fee applied to the transaction (e.g., 5 for 5%).

Range0 <= value <= 99.99

Default0

payGasFeeToken*string

The token address (in hexadecimal format) used to pay the transaction fee.

gasFeePaymentMethod*string

Defines how the fee will be paid: "ADD_TO_AMOUNT" adds it to the input amount, while "DEDUCT_FROM_AMOUNT" subtracts it from the input amount.

Value in

"ADD_TO_AMOUNT"
"DEDUCT_FROM_AMOUNT"

tokenIn*string

The address (in hexadecimal format) of the token being swapped from.

amountIn*string

The amount of token being swapped from, expressed as a decimal string.

tokenId*string

The NFT token ID of the existing liquidity position to add liquidity to.

minPrice*number

Minimum price the liquidity will be active. If the price goes below this, the liquidity won't be active and will generate no revenues. This will allow to concentrate the liquidity to a price range, thus enhancing the gains. Price is always p = token1 / token0

Range0 <= value

maxPrice*number

Maximum price the liquidity will be active. If the price goes above this, the liquidity won't be active and will generate no revenues. This will allow to concentrate the liquidity to a price range, thus enhancing the gains. Price is always p = token1 / token0

Range0 <= value

slippage?number

Optional parameter controlling the maximum deviation allowed of the expected price of a trade and the actual price at which the trade is executed, with a minimum value of 0.5 and a maximum value of 99, default is 0.5, where 1 unit equals 1%.

Range0 <= value <= 99

Default0.5

extraFee?

Optional extra fee that can be charged in addition to the transaction fee (configured in the dashboard or via transactionFeePercent). This extra fee is deducted from the input token and sent to the specified toAddress, allowing you to define a custom recipient for this additional charge.

metadata?

Custom metadata for the entity. Key-value pairs with string values. Max 1KB size.

Response Body

`application/json`

curl -X POST "https://example.com/api/v1/liquidity/add" \  -H "Content-Type: application/json" \  -d '{    "walletAddress": "0x6e397ddf51d9f15dbe0414538e7529f51f2e5464",    "chainId": 42161,    "payGasFeeToken": "0x82af49447d8a07e3bd95bd0d56f35241523fbab1",    "gasFeePaymentMethod": "ADD_TO_AMOUNT",    "tokenIn": "0x2791bca1f2de4661ed88a30c99a7a9449aa84174",    "amountIn": "1.2",    "tokenId": "123456",    "minPrice": 83475.12,    "maxPrice": 102300.5  }'

{  "operation": {    "metadata": {      "key": "value"    },    "userOperationHash": "0x2aac7a66d5331454eafc9b981be3596ad08a40dad24883e3b9c4a5362cd7f7e1",    "revertReason": {      "decoded": "ERC-20 insufficient balance. Address 0xf12534a4939c7fbda50f893774a9525265fe1a9a has 120. The operation requested 200.",      "raw": "0xe450d38c000000000000000000000000f12534a4939c7fbda50f893774a9525265fe1a9a0000000000000000000000000000000000000000000000068155a43676e0000000000000000000000000000000000000000000000000000ad78ebc5ac6200000",      "utf8": "\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000�%4�����\u000f�7t�RRe�\u001a�\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0006�U�6v�\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\n׎�Z� \u0000\u0000"    },    "authorization": {      "chainId": 42161,      "address": "0xd6cedde84be40893d153be9d467cd6ad37875b28",      "nonce": 10,      "hash": "0x777811ae5d51875409b9978ddc1b40a9da1bbe9570040bdd7c5f186d70ceceba"    },    "tokenIn": {      "name": "Wrapped Bitcoin",      "symbol": "WBTC",      "decimals": 18,      "address": "0x2f2a2543b76a4166549f7aab2e75bef0aefc5b0f",      "logoURL": "https://assets.notus.team/wbtc.png"    },    "amountIn": "7239.2",    "tokenInAmountForToken0": "3619.6",    "tokenInAmountForToken1": "3619.6",    "walletAddress": "0x6e397ddf51d9f15dbe0414538e7529f51f2e5464",    "expiresAt": "2025-10-26T13:27:49.542Z",    "amounts": "7239.2",    "fees": [      {        "amount": "100.5",        "token": "0x1234567890123456789012345678901234567890",        "toAddress": "0x1234567890123456789012345678901234567890",        "type": "NOTUS",        "percentage": "2"      }    ],    "estimatedGasFees": {      "payGasFeeToken": "0xc2132d05d31c914a87c6611c10748aeb04b58e8f",      "maxGasFeeToken": "12.345",      "gasFeeTokenAmount": "12.345",      "gasFeeTokenAmountUSD": "0.321",      "maxGasFeeNative": "string"    },    "chain": 42161,    "liquidityProvider": "UNISWAP_V3",    "nftAddress": "0xc36442b4a4522e871399cd717abdd847ab11fe88",    "estimatedApr": "18.42"  }}

Add Liquidity via Swap

Authorization

Request Body

Response Body

`application/json`

`application/json`

`application/json`

`application/json`

Add Liquidity via Swap

Authorization

Request Body

Response Body

200application/json

400application/json

403application/json

404application/json

`application/json`

`application/json`

`application/json`

`application/json`