# getQuote (Permit2) GET https://api.0x.org/swap/permit2/quote Get the firm quote for a swap using Permit2 to set allowances Reference: https://docs.0x.org/api-reference/openapi-yaml/swap/permit-2-getquote ## OpenAPI Specification ```yaml openapi: 3.1.1 info: title: getQuote (Permit2) version: endpoint_swap.permit2Getquote paths: /swap/permit2/quote: get: operationId: permit-2-getquote summary: getQuote (Permit2) description: Get the firm quote for a swap using Permit2 to set allowances tags: - - subpackage_swap parameters: - name: chainId in: query description: >- Chain ID. See [here](https://0x.org/docs/developer-resources/supported-chains) for the list of supported chains required: true schema: type: integer - name: buyToken in: query description: The contract address of the token to buy required: true schema: type: string - name: sellToken in: query description: The contract address of the token to sell required: true schema: type: string - name: sellAmount in: query description: The amount of `sellToken` in `sellToken` base units to sell required: true schema: type: string - name: taker in: query description: >- The address which holds the `sellToken` balance and has the allowance set for the swap required: true schema: type: string - name: txOrigin in: query description: >- The address of the external account that started the transaction. This is only needed if `taker` is a smart contract. required: false schema: type: string - name: recipient in: query description: >- The address to receive the `buyToken`. If not provided, defaults to the taker address. Not supported for wrap/unwrap operations. required: false schema: type: string - name: swapFeeRecipient in: query description: >- The wallet address to receive the specified trading fees (supports single or multiple comma-separated values). You must also specify the `swapFeeBps` in the request to use this feature. When multiple values are provided, must match length of `swapFeeBps`. required: false schema: type: string - name: swapFeeBps in: query description: >- The amount in Bps of the `swapFeeToken` to charge and deliver to the `swapFeeRecipient` (supports single or multiple comma-separated values). You must also specify the `swapFeeRecipient` in the request to use this feature. For security, this field has a default limit of 1000 Bps. If your application requires a higher value, please reach out to us. required: false schema: type: string - name: swapFeeToken in: query description: >- The contract address of the token to receive trading fees in (supports single or multiple comma-separated values). Each token must be set to the value of either the `buyToken` or the `sellToken`. If omitted, the fee token will be determined by 0x with preference to stablecoins and highly liquid assets. You must also specify the `swapFeeRecipient` and `swapFeeBps` to charge integrator fees. When multiple values are provided, must match length of `swapFeeBps`. required: false schema: type: string - name: tradeSurplusRecipient in: query description: >- The address to receive any trade surplus. If specified, this address will receive trade surplus when applicable. Otherwise, the taker will receive the surplus. This feature is only available to selected integrators on a custom pricing plan. In other cases, the surplus will be collected by 0x. For assistance with a custom plan, please contact support. required: false schema: type: string - name: tradeSurplusMaxBps in: query description: >- The maximum trade surplus (positive slippage) that can be collected in Bps of the buy amount. If not provided, defaults to 10000 (100%). Must be used together with `tradeSurplusRecipient`. required: false schema: type: integer - name: gasPrice in: query description: >- The target gas price (in wei) for the swap transaction. If not provided, the default value is based on the 0x gas price oracle required: false schema: type: string - name: slippageBps in: query description: >- The maximum acceptable slippage of the `buyToken` in Bps. If this parameter is set to 0, no slippage will be tolerated. If not provided, the default slippage tolerance is 100Bps required: false schema: type: integer default: 100 - name: excludedSources in: query description: >- Liquidity sources e.g. Uniswap_V3, SushiSwap, 0x_RFQ to exclude from the provided quote. See https://api.0x.org/sources?chainId= with the desired chain's ID for a full list of sources. Separate multiple sources with a comma required: false schema: type: string - name: sellEntireBalance in: query description: >- If set to `true`, the taker's entire `sellToken` balance will be sold during trade execution. The `sellAmount` should be the maximum estimated value, as close as possible to the actual taker's balance to ensure the best routing. Selling more than the `sellAmount` may cause the trade to revert. This feature is designed for cases where the precise sell amount is determined during execution. Learn more [here](https://0x.org/docs/0x-swap-api/advanced-topics/sell-entire-balance). required: false schema: $ref: >- #/components/schemas/SwapPermit2QuoteGetParametersSellEntireBalance - name: 0x-api-key in: header description: Visit dashboard.0x.org to get your API Key required: true schema: type: string - name: 0x-version in: header description: API version required: true schema: type: string responses: '200': description: Successful response content: application/json: schema: $ref: '#/components/schemas/Swap_permit2Getquote_Response_200' '400': description: 400 error response content: {} '403': description: 403 error response content: {} '422': description: 422 error response content: {} '500': description: 500 error response content: {} components: schemas: SwapPermit2QuoteGetParametersSellEntireBalance: type: string enum: - value: 'true' - value: 'false' default: 'false' SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesIntegratorFeeType: type: string enum: - value: volume SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesIntegratorFee: type: object properties: amount: type: string description: The amount of token charged as the integrator fee token: type: string description: The address of the token charged as the integrator fee type: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesIntegratorFeeType required: - amount - token - type SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesIntegratorFeesItemsType: type: string enum: - value: volume SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesIntegratorFeesItems: type: object properties: amount: type: string description: The amount of token charged as the integrator fee token: type: string description: The address of the token charged as the integrator fee type: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesIntegratorFeesItemsType required: - amount - token - type SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesZeroExFeeType: type: string enum: - value: volume SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesZeroExFee: type: object properties: amount: type: string description: The amount of token charged as the 0x fee token: type: string description: The address of the token charged as the 0x fee type: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesZeroExFeeType required: - amount - token - type SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesGasFeeType: type: string enum: - value: gas SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesGasFee: type: object properties: amount: type: string description: The amount of token charged as the gas fee token: type: string description: The address of the token charged as the gas fee type: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesGasFeeType required: - amount - token - type SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Fees: type: object properties: integratorFee: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesIntegratorFee - type: 'null' description: The specified fee to charge and deliver to the `swapFeeRecipient`. integratorFees: type: - array - 'null' items: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesIntegratorFeesItems description: The specified fees to charge and deliver to the `swapFeesRecipient`. zeroExFee: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesZeroExFee - type: 'null' description: The fee charged by 0x for the trade. gasFee: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0FeesGasFee - type: 'null' description: The gas fee to be used in submitting the transaction. required: - integratorFee - integratorFees - zeroExFee - gasFee SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0IssuesAllowance: type: object properties: actual: type: string description: The `taker`'s current allowance of the `spender` spender: type: string description: The address to set the allowance on required: - actual - spender SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0IssuesBalance: type: object properties: token: type: string description: The contract address of the `sellToken` actual: type: string description: The current balance of the `sellToken` in the `taker` address expected: type: string description: >- The balance of the `sellToken` required for the swap to execute successfully required: - token - actual - expected SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Issues: type: object properties: allowance: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0IssuesAllowance - type: 'null' description: >- Details of allowances that the `taker` must set for in order to execute the swap successfully. Null if no allowance is required balance: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0IssuesBalance - type: 'null' description: >- Details of balance of the `sellToken` that the `taker` must hold. Null if the `taker` has sufficient balance simulationIncomplete: type: boolean description: >- This is set to `true` when 0x cannot validate the transaction. This happens when the `taker` has an insufficient balance of the `sellToken` and 0x is unable to peform ehanced quote validation with the low balance. Note that this does not necessarily mean that the trade will revert invalidSourcesPassed: type: array items: type: string description: >- A list of invalid sources present in `excludedSources` request. See https://api.0x.org/sources?chainId= with the desired chain's ID for the list of valid sources required: - allowance - balance - simulationIncomplete - invalidSourcesPassed SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Type: type: string enum: - value: Permit2 SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Eip712TypesItems: type: object properties: name: type: string type: type: string required: - name - type SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Eip712Domain: type: object properties: name: type: string version: type: string chainId: type: number format: double verifyingContract: type: string salt: type: string SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Eip712Message: oneOf: - type: string - type: array items: type: string - type: number format: double - type: array items: type: number format: double - type: boolean - type: array items: type: boolean - description: Any type - type: array items: description: Any type SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Eip712: type: object properties: types: type: object additionalProperties: type: array items: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Eip712TypesItems domain: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Eip712Domain message: type: object additionalProperties: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Eip712Message primaryType: type: string required: - types - domain - message - primaryType SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2: type: object properties: type: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Type description: '`Permit2`' hash: type: string description: >- The hash for the approval according to [EIP-712](https://eips.ethereum.org/EIPS/eip-712). If you compute the hash from eip712 field, it should match the value of this field eip712: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2Eip712 description: Necessary data for [EIP-712](https://eips.ethereum.org/EIPS/eip-712) required: - type - hash - eip712 SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0RouteFillsItems: type: object properties: from: type: string description: The contract address of the input token to: type: string description: The contract address of the output token source: type: string description: The liquidity source used in the route proportionBps: type: string description: The proportion of the trade to be filled by the `source` required: - from - to - source - proportionBps SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0RouteTokensItems: type: object properties: address: type: string description: The token address. This is the unique identifier of the token symbol: type: string description: >- The token symbol. This is not guaranteed to be unique, as multiple tokens can have the same symbol required: - address - symbol SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Route: type: object properties: fills: type: array items: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0RouteFillsItems description: Details of each segment that 0x routes the swap through tokens: type: array items: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0RouteTokensItems description: Properties of the tokens involved in the swap required: - fills - tokens SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataBuyTokenBuyTaxBps: type: object properties: {} SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataBuyTokenSellTaxBps: type: object properties: {} SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataBuyTokenTransferTaxBps: type: object properties: {} SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataBuyToken: type: object properties: buyTaxBps: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataBuyTokenBuyTaxBps - type: 'null' description: >- The buy tax in bps of the token. Since each token could have arbitrary implementation, this field is best effort, meaning it would be set to `null` if the system is not able to determine the tax sellTaxBps: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataBuyTokenSellTaxBps - type: 'null' description: >- The sell tax in bps of the token. Since each token could have arbitrary implementation, this field is best effort, meaning it would be set to `null` if the system is not able to determine the tax transferTaxBps: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataBuyTokenTransferTaxBps - type: 'null' description: >- The transfer tax in bps of the token. Since each token could have arbitrary implementation, this field is best effort, meaning it would be set to `null` if the system is not able to determine the tax required: - buyTaxBps - sellTaxBps - transferTaxBps SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataSellTokenBuyTaxBps: type: object properties: {} SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataSellTokenSellTaxBps: type: object properties: {} SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataSellTokenTransferTaxBps: type: object properties: {} SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataSellToken: type: object properties: buyTaxBps: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataSellTokenBuyTaxBps - type: 'null' description: >- The buy tax in bps of the token. Since each token could have arbitrary implementation, this field is best effort, meaning it would be set to `null` if the system is not able to determine the tax sellTaxBps: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataSellTokenSellTaxBps - type: 'null' description: >- The sell tax in bps of the token. Since each token could have arbitrary implementation, this field is best effort, meaning it would be set to `null` if the system is not able to determine the tax transferTaxBps: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataSellTokenTransferTaxBps - type: 'null' description: >- The transfer tax in bps of the token. Since each token could have arbitrary implementation, this field is best effort, meaning it would be set to `null` if the system is not able to determine the tax required: - buyTaxBps - sellTaxBps - transferTaxBps SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadata: type: object properties: buyToken: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataBuyToken description: Swap-related metadata for the buy token sellToken: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadataSellToken description: Swap-related metadata for the sell token required: - buyToken - sellToken SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TotalNetworkFee: type: object properties: {} SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TransactionGas: type: object properties: {} SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Transaction: type: object properties: to: type: string description: >- The address of the target contract to send call `data` to. Do NOT use this field when setting token allowances — doing so can result in lost funds. Always use `issues.allowance.spender` or `allowanceTarget` for setting allowances. data: type: string description: >- The calldata containing transaction execution details to be sent to the `to` address gas: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TransactionGas - type: 'null' description: >- The estimated gas limit that should be used to send the transaction to guarantee settlement gasPrice: type: string description: The gas price (in wei) that should be used to send the transaction value: type: string description: >- The amount of ether (in wei) that should be sent with the transaction required: - to - data - gas - gasPrice - value SwapPermit2GetquoteResponse2000: type: object properties: allowanceTarget: type: - string - 'null' description: >- The target contract address for which the `taker` needs to have an allowance in order to be able to complete the swap. For swaps with the native asset (ie "ETH" or "BNB") as the `sellToken`, wrapping the native asset (i.e. "ETH" to "WETH") or unwrapping, no allowance is needed blockNumber: type: string description: >- The block number at which the liquidity sources were sampled to generate the quote. This indicates the freshness of the quote buyAmount: type: string description: >- The amount of `buyToken` (in `buyToken` units) that will be bought in the swap buyToken: type: string description: The contract address of the token to buy in the swap fees: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Fees issues: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Issues description: >- An object containing potential issues discovered during 0x validation that can prevent the swap from being executed successfully by the `taker` liquidityAvailable: type: boolean description: >- This validates the availability of liquidity for the quote requested. The rest of the fields will only be returned if `true` minBuyAmount: type: string description: >- The price which must be met or else the transaction will revert. This price is influenced by the `slippageBps` parameter. On-chain sources may encounter price movements from quote to settlement permit2: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Permit2 - type: 'null' description: >- This is the approval object which contains the necessary fields to submit an approval for this transaction. Null if sell token is the native token or the transaction is a native token wrap / unwrap route: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Route description: The path of liquidity sources to be used in executing this swap sellAmount: type: string description: >- The amount of `sellToken` (in `sellToken` units) that will be sold in this swap sellToken: type: string description: The contract address of the token to sell in the swap tokenMetadata: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TokenMetadata description: Swap-related metadata for the buy and sell token in the swap totalNetworkFee: oneOf: - $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0TotalNetworkFee - type: 'null' description: >- The estimated total network cost of the swap. On chains where there is no L1 data cost, it is calculated as `gas` * `gasPrice. On chains where there is an L1 data cost, it is calculated as `gas` * `gasPrice + L1 data transaction: $ref: >- #/components/schemas/SwapPermit2QuoteGetResponsesContentApplicationJsonSchemaOneOf0Transaction description: This object contains the details required to submit the transaction zid: type: string description: The unique ZeroEx identifier of the request required: - allowanceTarget - blockNumber - buyAmount - buyToken - fees - issues - liquidityAvailable - minBuyAmount - permit2 - route - sellAmount - sellToken - tokenMetadata - totalNetworkFee - transaction - zid SwapPermit2GetquoteResponse2001: type: object properties: liquidityAvailable: type: boolean description: >- This validates the availability of liquidity for the quote requested. No other fields will be returned if it is `false` zid: type: string description: The unique ZeroEx identifier of the request required: - liquidityAvailable - zid Swap_permit2Getquote_Response_200: oneOf: - $ref: '#/components/schemas/SwapPermit2GetquoteResponse2000' - $ref: '#/components/schemas/SwapPermit2GetquoteResponse2001' ``` ## SDK Code Examples ```python import requests url = "https://api.0x.org/swap/permit2/quote" querystring = {"chainId":"1","buyToken":"0xdac17f958d2ee523a2206206994597c13d831ec7","sellToken":"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48","sellAmount":"100000000","taker":"0x70a9f34f9b34c64957b9c401a97bfed35b95049e"} payload = { "body": { "chainId": 1, "buyToken": "0xdac17f958d2ee523a2206206994597c13d831ec7", "sellToken": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48", "sellAmount": "100000000", "taker": "0x70a9f34f9b34c64957b9c401a97bfed35b95049e", "0x-api-key": "123456789abcdef123456789abcdef12", "0x-version": "v2" } } headers = { "0x-api-key": "0x-api-key", "0x-version": "v2", "Content-Type": "application/json" } response = requests.get(url, json=payload, headers=headers, params=querystring) print(response.json()) ``` ```javascript const url = 'https://api.0x.org/swap/permit2/quote?chainId=1&buyToken=0xdac17f958d2ee523a2206206994597c13d831ec7&sellToken=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48&sellAmount=100000000&taker=0x70a9f34f9b34c64957b9c401a97bfed35b95049e'; const options = { method: 'GET', headers: { '0x-api-key': '0x-api-key', '0x-version': 'v2', 'Content-Type': 'application/json' }, body: '{"body":{"chainId":1,"buyToken":"0xdac17f958d2ee523a2206206994597c13d831ec7","sellToken":"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48","sellAmount":"100000000","taker":"0x70a9f34f9b34c64957b9c401a97bfed35b95049e","0x-api-key":"123456789abcdef123456789abcdef12","0x-version":"v2"}}' }; try { const response = await fetch(url, options); const data = await response.json(); console.log(data); } catch (error) { console.error(error); } ``` ```go package main import ( "fmt" "strings" "net/http" "io" ) func main() { url := "https://api.0x.org/swap/permit2/quote?chainId=1&buyToken=0xdac17f958d2ee523a2206206994597c13d831ec7&sellToken=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48&sellAmount=100000000&taker=0x70a9f34f9b34c64957b9c401a97bfed35b95049e" payload := strings.NewReader("{\n \"body\": {\n \"chainId\": 1,\n \"buyToken\": \"0xdac17f958d2ee523a2206206994597c13d831ec7\",\n \"sellToken\": \"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48\",\n \"sellAmount\": \"100000000\",\n \"taker\": \"0x70a9f34f9b34c64957b9c401a97bfed35b95049e\",\n \"0x-api-key\": \"123456789abcdef123456789abcdef12\",\n \"0x-version\": \"v2\"\n }\n}") req, _ := http.NewRequest("GET", url, payload) req.Header.Add("0x-api-key", "0x-api-key") req.Header.Add("0x-version", "v2") req.Header.Add("Content-Type", "application/json") res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := io.ReadAll(res.Body) fmt.Println(res) fmt.Println(string(body)) } ``` ```ruby require 'uri' require 'net/http' url = URI("https://api.0x.org/swap/permit2/quote?chainId=1&buyToken=0xdac17f958d2ee523a2206206994597c13d831ec7&sellToken=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48&sellAmount=100000000&taker=0x70a9f34f9b34c64957b9c401a97bfed35b95049e") http = Net::HTTP.new(url.host, url.port) http.use_ssl = true request = Net::HTTP::Get.new(url) request["0x-api-key"] = '0x-api-key' request["0x-version"] = 'v2' request["Content-Type"] = 'application/json' request.body = "{\n \"body\": {\n \"chainId\": 1,\n \"buyToken\": \"0xdac17f958d2ee523a2206206994597c13d831ec7\",\n \"sellToken\": \"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48\",\n \"sellAmount\": \"100000000\",\n \"taker\": \"0x70a9f34f9b34c64957b9c401a97bfed35b95049e\",\n \"0x-api-key\": \"123456789abcdef123456789abcdef12\",\n \"0x-version\": \"v2\"\n }\n}" response = http.request(request) puts response.read_body ``` ```java import com.mashape.unirest.http.HttpResponse; import com.mashape.unirest.http.Unirest; HttpResponse response = Unirest.get("https://api.0x.org/swap/permit2/quote?chainId=1&buyToken=0xdac17f958d2ee523a2206206994597c13d831ec7&sellToken=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48&sellAmount=100000000&taker=0x70a9f34f9b34c64957b9c401a97bfed35b95049e") .header("0x-api-key", "0x-api-key") .header("0x-version", "v2") .header("Content-Type", "application/json") .body("{\n \"body\": {\n \"chainId\": 1,\n \"buyToken\": \"0xdac17f958d2ee523a2206206994597c13d831ec7\",\n \"sellToken\": \"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48\",\n \"sellAmount\": \"100000000\",\n \"taker\": \"0x70a9f34f9b34c64957b9c401a97bfed35b95049e\",\n \"0x-api-key\": \"123456789abcdef123456789abcdef12\",\n \"0x-version\": \"v2\"\n }\n}") .asString(); ``` ```php request('GET', 'https://api.0x.org/swap/permit2/quote?chainId=1&buyToken=0xdac17f958d2ee523a2206206994597c13d831ec7&sellToken=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48&sellAmount=100000000&taker=0x70a9f34f9b34c64957b9c401a97bfed35b95049e', [ 'body' => '{ "body": { "chainId": 1, "buyToken": "0xdac17f958d2ee523a2206206994597c13d831ec7", "sellToken": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48", "sellAmount": "100000000", "taker": "0x70a9f34f9b34c64957b9c401a97bfed35b95049e", "0x-api-key": "123456789abcdef123456789abcdef12", "0x-version": "v2" } }', 'headers' => [ '0x-api-key' => '0x-api-key', '0x-version' => 'v2', 'Content-Type' => 'application/json', ], ]); echo $response->getBody(); ``` ```csharp using RestSharp; var client = new RestClient("https://api.0x.org/swap/permit2/quote?chainId=1&buyToken=0xdac17f958d2ee523a2206206994597c13d831ec7&sellToken=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48&sellAmount=100000000&taker=0x70a9f34f9b34c64957b9c401a97bfed35b95049e"); var request = new RestRequest(Method.GET); request.AddHeader("0x-api-key", "0x-api-key"); request.AddHeader("0x-version", "v2"); request.AddHeader("Content-Type", "application/json"); request.AddParameter("application/json", "{\n \"body\": {\n \"chainId\": 1,\n \"buyToken\": \"0xdac17f958d2ee523a2206206994597c13d831ec7\",\n \"sellToken\": \"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48\",\n \"sellAmount\": \"100000000\",\n \"taker\": \"0x70a9f34f9b34c64957b9c401a97bfed35b95049e\",\n \"0x-api-key\": \"123456789abcdef123456789abcdef12\",\n \"0x-version\": \"v2\"\n }\n}", ParameterType.RequestBody); IRestResponse response = client.Execute(request); ``` ```swift import Foundation let headers = [ "0x-api-key": "0x-api-key", "0x-version": "v2", "Content-Type": "application/json" ] let parameters = ["body": [ "chainId": 1, "buyToken": "0xdac17f958d2ee523a2206206994597c13d831ec7", "sellToken": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48", "sellAmount": "100000000", "taker": "0x70a9f34f9b34c64957b9c401a97bfed35b95049e", "0x-api-key": "123456789abcdef123456789abcdef12", "0x-version": "v2" ]] as [String : Any] let postData = JSONSerialization.data(withJSONObject: parameters, options: []) let request = NSMutableURLRequest(url: NSURL(string: "https://api.0x.org/swap/permit2/quote?chainId=1&buyToken=0xdac17f958d2ee523a2206206994597c13d831ec7&sellToken=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48&sellAmount=100000000&taker=0x70a9f34f9b34c64957b9c401a97bfed35b95049e")! as URL, cachePolicy: .useProtocolCachePolicy, timeoutInterval: 10.0) request.httpMethod = "GET" request.allHTTPHeaderFields = headers request.httpBody = postData as Data let session = URLSession.shared let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in if (error != nil) { print(error as Any) } else { let httpResponse = response as? HTTPURLResponse print(httpResponse) } }) dataTask.resume() ```