> ## Documentation Index > Fetch the complete documentation index at: https://cobo.com/developers/llms.txt > Use this file to discover all available pages before exploring further. # Estimate swap fee > This operation estimates the network fee of a swap activity. You can use this operation to estimate the network fee before initiating swap activities from MPC Wallets or Custodial Wallets (Web3 Wallets). It requires a valid `wallet_id` and `quote_id`, so you need to [get a swap quote](https://www.cobo.com/developers/v2/api-references/swaps/get-swap-quote) first. > [!TIP] > > Try [Cobo WaaS Skill](https://cobo.com/developers/v2/guides/overview/cobo-waas-skill.md) in your AI coding assistant (Claude Code, Cursor, etc.). Describe your needs in natural language to auto-generate production-ready SDK code and debug faster 🚀 ```python Python theme={null} import cobo_waas2 from cobo_waas2.models.estimated_fee import EstimatedFee from cobo_waas2.models.swap_estimate_fee import SwapEstimateFee from cobo_waas2.rest import ApiException from pprint import pprint # See configuration.py for a list of all supported configurations. configuration = cobo_waas2.Configuration( # Replace `` with your private key api_private_key="", # Select the development environment. To use the production environment, change the URL to https://api.cobo.com/v2. host="https://api.dev.cobo.com/v2", ) # Enter a context with an instance of the API client with cobo_waas2.ApiClient(configuration) as api_client: # Create an instance of the API class api_instance = cobo_waas2.SwapsApi(api_client) swap_estimate_fee = cobo_waas2.SwapEstimateFee( wallet_id="123e4567-e89b-12d3-a456-426614174000", address="19AR6YWEGbSoY8UT9Ksy9WrmrZPD5sL4Ku", quote_id="123e4567-e89b-12d3-a456-426614174001", fee_type="Fixed" ) try: # Estimate swap fee api_response = api_instance.estimate_swap_fee(swap_estimate_fee) print("The response of SwapsApi->estimate_swap_fee:\n") pprint(api_response) except Exception as e: print("Exception when calling SwapsApi->estimate_swap_fee: %s\n" % e) ``` ```java Java theme={null} // Import classes: import com.cobo.waas2.ApiClient; import com.cobo.waas2.ApiException; import com.cobo.waas2.Configuration; import com.cobo.waas2.Env; import com.cobo.waas2.api.SwapsApi; import com.cobo.waas2.model.*; import java.util.UUID; public class Example { public static void main(String[] args) { ApiClient defaultClient = Configuration.getDefaultApiClient(); // Select the development environment. To use the production environment, replace `Env.DEV` with // `Env.PROD defaultClient.setEnv(Env.DEV); // Replace `` with your private key defaultClient.setPrivKey(""); SwapsApi apiInstance = new SwapsApi(); SwapEstimateFee swapEstimateFee = new SwapEstimateFee() .walletId("123e4567-e89b-12d3-a456-426614174000") .quoteId(UUID.fromString("123e4567-e89b-12d3-a456-426614174001")); try { EstimatedFee result = apiInstance.estimateSwapFee(swapEstimateFee); System.out.println(result); } catch (ApiException e) { System.err.println("Exception when calling SwapsApi#estimateSwapFee"); System.err.println("Status code: " + e.getCode()); System.err.println("Reason: " + e.getResponseBody()); System.err.println("Response headers: " + e.getResponseHeaders()); e.printStackTrace(); } } } ``` ```go Go theme={null} package main import ( "context" "fmt" coboWaas2 "github.com/CoboGlobal/cobo-waas2-go-sdk/cobo_waas2" "github.com/CoboGlobal/cobo-waas2-go-sdk/cobo_waas2/crypto" "os" ) func main() { swapEstimateFee := *coboWaas2.NewSwapEstimateFee("123e4567-e89b-12d3-a456-426614174000", "123e4567-e89b-12d3-a456-426614174001") configuration := coboWaas2.NewConfiguration() // Initialize the API client apiClient := coboWaas2.NewAPIClient(configuration) ctx := context.Background() // Select the development environment. To use the production environment, replace coboWaas2.DevEnv with coboWaas2.ProdEnv ctx = context.WithValue(ctx, coboWaas2.ContextEnv, coboWaas2.DevEnv) // Replace `` with your private key ctx = context.WithValue(ctx, coboWaas2.ContextPortalSigner, crypto.Ed25519Signer{ Secret: "", }) resp, r, err := apiClient.SwapsAPI.EstimateSwapFee(ctx). SwapEstimateFee(swapEstimateFee). Execute() if err != nil { fmt.Fprintf(os.Stderr, "Error when calling `SwapsAPI.EstimateSwapFee``: %v\n", err) fmt.Fprintf(os.Stderr, "Full HTTP response: %v\n", r) } // response from `EstimateSwapFee`: EstimatedFee fmt.Fprintf(os.Stdout, "Response from `SwapsAPI.EstimateSwapFee`: %v\n", resp) } ``` ```javascript JavaScript theme={null} const CoboWaas2 = require("@cobo/cobo-waas2"); // Initialize the API client const apiClient = CoboWaas2.ApiClient.instance; // Select the development environment. To use the production environment, replace `Env.DEV` with `Env.PROD` apiClient.setEnv(CoboWaas2.Env.DEV); // Replace `` with your private key apiClient.setPrivateKey(""); // Call the API const apiInstance = new CoboWaas2.SwapsApi(); const SwapEstimateFee = new CoboWaas2.SwapEstimateFee(); apiInstance.estimateSwapFee(SwapEstimateFee).then( (data) => { console.log("API called successfully. Returned data: " + data); }, (error) => { console.error(error); }, ); ``` ```python Python theme={null} import cobo_waas2 from cobo_waas2.models.estimated_fee import EstimatedFee from cobo_waas2.models.swap_estimate_fee import SwapEstimateFee from cobo_waas2.rest import ApiException from pprint import pprint # See configuration.py for a list of all supported configurations. configuration = cobo_waas2.Configuration( # Replace `` with your private key api_private_key="", # Select the development environment. To use the production environment, change the URL to https://api.cobo.com/v2. host="https://api.dev.cobo.com/v2", ) # Enter a context with an instance of the API client with cobo_waas2.ApiClient(configuration) as api_client: # Create an instance of the API class api_instance = cobo_waas2.SwapsApi(api_client) swap_estimate_fee = cobo_waas2.SwapEstimateFee( wallet_id="123e4567-e89b-12d3-a456-426614174000", quote_id="123e4567-e89b-12d3-a456-426614174001", ) try: # Estimate swap fee api_response = api_instance.estimate_swap_fee(swap_estimate_fee) print("The response of SwapsApi->estimate_swap_fee:\n") pprint(api_response) except Exception as e: print("Exception when calling SwapsApi->estimate_swap_fee: %s\n" % e) ``` ```java Java theme={null} // Import classes: import com.cobo.waas2.ApiClient; import com.cobo.waas2.ApiException; import com.cobo.waas2.Configuration; import com.cobo.waas2.Env; import com.cobo.waas2.api.SwapsApi; import com.cobo.waas2.model.*; public class Example { public static void main(String[] args) { ApiClient defaultClient = Configuration.getDefaultApiClient(); // Select the development environment. To use the production environment, replace `Env.DEV` with // `Env.PROD defaultClient.setEnv(Env.DEV); // Replace `` with your private key defaultClient.setPrivKey(""); SwapsApi apiInstance = new SwapsApi(); SwapEstimateFee swapEstimateFee = new SwapEstimateFee() .walletId("123e4567-e89b-12d3-a456-426614174000") .quoteId("123e4567-e89b-12d3-a456-426614174001"); try { EstimatedFee result = apiInstance.estimateSwapFee(swapEstimateFee); System.out.println(result); } catch (ApiException e) { System.err.println("Exception when calling SwapsApi#estimateSwapFee"); System.err.println("Status code: " + e.getCode()); System.err.println("Reason: " + e.getResponseBody()); System.err.println("Response headers: " + e.getResponseHeaders()); e.printStackTrace(); } } } ``` ```go Go theme={null} package main import ( "context" "fmt" coboWaas2 "github.com/CoboGlobal/cobo-waas2-go-sdk/cobo_waas2" "github.com/CoboGlobal/cobo-waas2-go-sdk/cobo_waas2/crypto" "os" ) func main() { swapEstimateFee := *coboWaas2.NewSwapEstimateFee("123e4567-e89b-12d3-a456-426614174000", "123e4567-e89b-12d3-a456-426614174001") configuration := coboWaas2.NewConfiguration() // Initialize the API client apiClient := coboWaas2.NewAPIClient(configuration) ctx := context.Background() // Select the development environment. To use the production environment, replace coboWaas2.DevEnv with coboWaas2.ProdEnv ctx = context.WithValue(ctx, coboWaas2.ContextEnv, coboWaas2.DevEnv) // Replace `` with your private key ctx = context.WithValue(ctx, coboWaas2.ContextPortalSigner, crypto.Ed25519Signer{ Secret: "", }) resp, r, err := apiClient.SwapsAPI.EstimateSwapFee(ctx). SwapEstimateFee(swapEstimateFee). Execute() if err != nil { fmt.Fprintf(os.Stderr, "Error when calling `SwapsAPI.EstimateSwapFee``: %v\n", err) fmt.Fprintf(os.Stderr, "Full HTTP response: %v\n", r) } // response from `EstimateSwapFee`: EstimatedFee fmt.Fprintf(os.Stdout, "Response from `SwapsAPI.EstimateSwapFee`: %v\n", resp) } ``` ```javascript JavaScript theme={null} const CoboWaas2 = require("@cobo/cobo-waas2"); // Initialize the API client const apiClient = CoboWaas2.ApiClient.instance; // Select the development environment. To use the production environment, replace `Env.DEV` with `Env.PROD` apiClient.setEnv(CoboWaas2.Env.DEV); // Replace `` with your private key apiClient.setPrivateKey(""); // Call the API const apiInstance = new CoboWaas2.SwapsApi(); const SwapEstimateFee = new CoboWaas2.SwapEstimateFee(); apiInstance.estimateSwapFee(SwapEstimateFee).then( (data) => { console.log("API called successfully. Returned data: " + data); }, (error) => { console.error(error); }, ); ``` ## OpenAPI ````yaml post /swaps/estimate_fee openapi: 3.0.3 info: title: Cobo Wallet as a Service 2.0 description: > The Cobo Wallet-as-a-Service (WaaS) 2.0 API is the latest version of Cobo's WaaS API offering. It enables you to access Cobo's full suite of crypto wallet technologies with powerful and flexible access controls. By encapsulating complex security protocols and streamlining blockchain interactions, this API allows you to concentrate on your core business activities without worrying about the safety of your assets. The WaaS 2.0 API presents the following key features: - A unified API for Cobo's [all wallet types](https://manuals.cobo.com/en/portal/introduction#an-all-in-one-wallet-platform) - Support for 80+ chains and 3000+ tokens - A comprehensive selection of webhook events - Flexible usage models for MPC Wallets, including [Organization-Controlled Wallets](https://manuals.cobo.com/en/portal/mpc-wallets/ocw/introduction) and [User-Controlled Wallets](https://manuals.cobo.com/en/portal/mpc-wallets/ucw/introduction) - Seamlessly transfer funds across multiple exchanges, including Binance, OKX, Bybit, Deribit, and more For more information about the WaaS 2.0 API, see [Introduction to WaaS 2.0](https://www.cobo.com/developers/v2/guides/overview/introduction). termsOfService: https://cobo.com/waas/tos/ license: name: Apache 2.0 url: https://www.apache.org/licenses/LICENSE-2.0.html contact: name: Cobo WaaS url: https://www.cobo.com/waas email: help@cobo.com version: 1.0.0 servers: - url: https://api.dev.cobo.com/v2 description: Development environment - url: https://api.cobo.com/v2 description: Production environment security: - CoboAuth: [] tags: - name: Organizations description: Operations related to Organizations. - name: Wallets description: Operations related to all wallets. - name: Wallets - MPC Wallets description: Operations related to mpc wallet. - name: Wallets - Exchange Wallet description: Operations related to exchange wallet. - name: Transactions description: Operations related to all transactions. - name: Developers - Webhooks description: Operations related to webhooks. - name: Stakings description: Operations related to staking. - name: OAuth description: Operations related to OAuth. - name: Developers description: Operations related to developers. - name: AddressBooks description: Operations related to address books. - name: TravelRule description: Operations related to travel rule. - name: GraphQL description: Operations related to executing GraphQL queries and mutations. - name: PrimeBroker description: Operations related to prime broker. - name: AppWorkflows description: Operations related to app workflow. - name: FeeStation description: Operations related to fee station. - name: Payment description: Operations related to payment. - name: Batch Payouts description: Operations related to batch payouts. - name: Tokenization description: Operations related to tokenization. - name: AutoSweep description: Operations related to auto sweep. - name: Compliance description: Operations related to compliance. - name: Reconciliation description: Operations related to reconciliation. - name: Internal - FeeEngine description: Internal operations related to fee engine . - name: Internal - Tokens description: Internal operations related to tokens. - name: Internal - Package description: Internal operations related to package management. paths: /swaps/estimate_fee: post: tags: - Swaps summary: Estimate swap fee description: > This operation estimates the network fee of a swap activity. You can use this operation to estimate the network fee before initiating swap activities from MPC Wallets or Custodial Wallets (Web3 Wallets). It requires a valid `wallet_id` and `quote_id`, so you need to [get a swap quote](https://www.cobo.com/developers/v2/api-references/swaps/get-swap-quote) first. operationId: estimate_swap_fee requestBody: $ref: '#/components/requestBodies/estimateSwapFeeBody' responses: '201': $ref: '#/components/responses/estimateSwapFeeResponse' 4XX: $ref: '#/components/responses/badRequestError' 5XX: $ref: '#/components/responses/internalServerError' security: - CoboAuth: [] - OAuth2: [] components: requestBodies: estimateSwapFeeBody: description: The request body for estimating the network fee of a swap activity. required: true content: application/json: schema: $ref: '#/components/schemas/SwapEstimateFee' responses: estimateSwapFeeResponse: description: The estimated service fee for swap activity successfully retrieved. content: application/json: schema: $ref: '#/components/schemas/EstimatedFee' badRequestError: description: >- Bad request. Your request contains malformed syntax or invalid parameters. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' internalServerError: description: Internal server error. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' schemas: SwapEstimateFee: type: object required: - wallet_id - quote_id properties: wallet_id: type: string description: The ID of the wallet to pay. example: 123e4567-e89b-12d3-a456-426614174000 address: type: string description: >- The wallet address. This property is required when the wallet to pay is not a Custodial Wallet (Asset Wallet). example: 19AR6YWEGbSoY8UT9Ksy9WrmrZPD5sL4Ku quote_id: type: string description: The ID of the swap quote. example: 123e4567-e89b-12d3-a456-426614174001 fee_type: $ref: '#/components/schemas/FeeType' EstimatedFee: oneOf: - $ref: '#/components/schemas/EstimatedFixedFee' - $ref: '#/components/schemas/EstimatedEvmEip1559Fee' - $ref: '#/components/schemas/EstimatedEvmLegacyFee' - $ref: '#/components/schemas/EstimatedUtxoFee' - $ref: '#/components/schemas/EstimatedSOLFee' - $ref: '#/components/schemas/EstimatedFILFee' discriminator: propertyName: fee_type mapping: Fixed: '#/components/schemas/EstimatedFixedFee' EVM_EIP_1559: '#/components/schemas/EstimatedEvmEip1559Fee' EVM_Legacy: '#/components/schemas/EstimatedEvmLegacyFee' UTXO: '#/components/schemas/EstimatedUtxoFee' SOL: '#/components/schemas/EstimatedSOLFee' FIL: '#/components/schemas/EstimatedFILFee' ErrorResponse: type: object description: The response of a failed request. required: - error_code - error_message - error_id properties: error_code: type: integer description: >- The error code. Refer to [Error codes and status codes](https://www.cobo.com/developers/v2/api-references/error-codes) for more details. error_message: type: string description: The error description. error_id: type: string description: >- The error log ID. You can provide the error ID when submitting a ticket to help Cobo to locate the issue. example: 0b6ddf19083c4bd1a9ca01bec44b24dd FeeType: type: string enum: - Fixed - EVM_EIP_1559 - EVM_Legacy - UTXO - SOL - FIL example: EVM_EIP_1559 default: EVM_EIP_1559 description: > The fee model. Possible values include: - `Fixed`: The fixed fee model. - `EVM_EIP_1559`: The EIP-1559 fee model. - `EVM_Legacy`: The legacy fee model. - `UTXO`: The fee model used in UTXO-based blockchains, such as Bitcoin. - `SOL`: The fee model used in Solana. - `FIL`: The fee model used in Filecoin. Each fee model requires a different set of properties. Switch between the above tabs for details. To learn more about the fee models, refer to [Fee models](https://www.cobo.com/developers/v2/guides/transactions/estimate-fees#fee-models). EstimatedFixedFee: type: object description: > The estimated transaction fee based on the fixed fee model. For more details about the fixed fee model, see [Fee models](https://www.cobo.com/developers/v2/guides/transactions/estimate-fees#fee-models). title: Fixed required: - fee_type - token_id - fee_amount allOf: - type: object properties: fee_type: $ref: '#/components/schemas/FeeType' token_id: type: string description: The token used to pay the transaction fee. example: TRON is_loop: type: boolean description: > Whether the transaction was executed as a [Cobo Loop](https://manuals.cobo.com/en/portal/custodial-wallets/cobo-loop) transfer. - `true`: The transaction was executed as a Cobo Loop transfer. - `false`: The transaction was not executed as a Cobo Loop transfer. example: false - $ref: '#/components/schemas/FeeAmount' EstimatedEvmEip1559Fee: type: object description: > The estimated transaction fee based on the EIP-1559 fee model. For more details about the EIP-1559 fee model, see [Fee models](https://www.cobo.com/developers/v2/guides/transactions/estimate-fees#fee-models). title: EVM_EIP_1559 required: - fee_type - token_id - recommended properties: fee_type: $ref: '#/components/schemas/FeeType' token_id: type: string description: The token used to pay the transaction fee. example: ETH slow: required: - max_fee_per_gas - max_priority_fee_per_gas - gas_limit allOf: - $ref: '#/components/schemas/EvmEip1559FeeBasePrice' - $ref: '#/components/schemas/FeeGasLimit' - $ref: '#/components/schemas/FeeReserved' - $ref: '#/components/schemas/FeeFallback' recommended: required: - max_fee_per_gas - max_priority_fee_per_gas - gas_limit allOf: - $ref: '#/components/schemas/EvmEip1559FeeBasePrice' - $ref: '#/components/schemas/FeeGasLimit' - $ref: '#/components/schemas/FeeReserved' - $ref: '#/components/schemas/FeeFallback' fast: required: - max_fee_per_gas - max_priority_fee_per_gas - gas_limit allOf: - $ref: '#/components/schemas/EvmEip1559FeeBasePrice' - $ref: '#/components/schemas/FeeGasLimit' - $ref: '#/components/schemas/FeeReserved' - $ref: '#/components/schemas/FeeFallback' EstimatedEvmLegacyFee: type: object description: > The estimated transaction fee based on the Legacy fee model. For more details about the Legacy fee model, see [Fee models](https://www.cobo.com/developers/v2/guides/transactions/estimate-fees#fee-models). title: EVM_Legacy required: - fee_type - token_id - recommended properties: fee_type: $ref: '#/components/schemas/FeeType' token_id: type: string description: The token used to pay the transaction fee. example: ETH slow: required: - gas_price - gas_limit allOf: - $ref: '#/components/schemas/EvmLegacyFeeBasePrice' - $ref: '#/components/schemas/FeeGasLimit' - $ref: '#/components/schemas/FeeReserved' - $ref: '#/components/schemas/FeeFallback' recommended: required: - gas_price - gas_limit allOf: - $ref: '#/components/schemas/EvmLegacyFeeBasePrice' - $ref: '#/components/schemas/FeeGasLimit' - $ref: '#/components/schemas/FeeReserved' - $ref: '#/components/schemas/FeeFallback' fast: required: - gas_price - gas_limit allOf: - $ref: '#/components/schemas/EvmLegacyFeeBasePrice' - $ref: '#/components/schemas/FeeGasLimit' - $ref: '#/components/schemas/FeeReserved' - $ref: '#/components/schemas/FeeFallback' EstimatedUtxoFee: type: object description: > The estimated transaction fee for UTXO-based chains. For more details about the UTXO fee model, see [Fee models](https://www.cobo.com/developers/v2/guides/transactions/estimate-fees#fee-models). title: UTXO required: - fee_type - token_id - recommended properties: fee_type: $ref: '#/components/schemas/FeeType' token_id: type: string description: The token used to pay the transaction fee. example: BTC slow: required: - fee_rate - fee_amount allOf: - $ref: '#/components/schemas/UtxoFeeBasePrice' - $ref: '#/components/schemas/FeeAmount' recommended: required: - fee_rate - fee_amount allOf: - $ref: '#/components/schemas/UtxoFeeBasePrice' - $ref: '#/components/schemas/FeeAmount' fast: required: - fee_rate - fee_amount allOf: - $ref: '#/components/schemas/UtxoFeeBasePrice' - $ref: '#/components/schemas/FeeAmount' EstimatedSOLFee: type: object description: > The estimated transaction fee based on the SOL fee model. For more details about the SOL fee model, see [Fee models](https://www.cobo.com/developers/v2/guides/transactions/estimate-fees#fee-models). title: SOL required: - fee_type - token_id - recommended properties: fee_type: $ref: '#/components/schemas/FeeType' token_id: type: string description: The token used to pay the transaction fee. example: ETH slow: required: - compute_unit_price - compute_unit_limit - base_fee allOf: - $ref: '#/components/schemas/SOLComputeUnit' - $ref: '#/components/schemas/SOLBase' recommended: required: - compute_unit_price - compute_unit_limit - base_fee allOf: - $ref: '#/components/schemas/SOLComputeUnit' - $ref: '#/components/schemas/SOLBase' fast: required: - compute_unit_price - compute_unit_limit - base_fee allOf: - $ref: '#/components/schemas/SOLComputeUnit' - $ref: '#/components/schemas/SOLBase' EstimatedFILFee: type: object description: > The estimated transaction fee based on the FIL fee model. For more details about the FIL fee model, see [Fee models](https://www.cobo.com/developers/v2/guides/transactions/estimate-fees#fee-models). title: FIL required: - fee_type - token_id - recommended properties: fee_type: $ref: '#/components/schemas/FeeType' token_id: type: string description: The token used to pay the transaction fee. example: ETH slow: required: - gas_premium - gas_fee_cap - gas_base - gas_limit allOf: - $ref: '#/components/schemas/FILPrice' - $ref: '#/components/schemas/FILBase' recommended: required: - gas_premium - gas_fee_cap - gas_base - gas_limit allOf: - $ref: '#/components/schemas/FILPrice' - $ref: '#/components/schemas/FILBase' fast: required: - gas_premium - gas_fee_cap - gas_base - gas_limit allOf: - $ref: '#/components/schemas/FILPrice' - $ref: '#/components/schemas/FILBase' FeeAmount: type: object description: The transaction fee. properties: fee_amount: type: string description: The transaction fee that you need to pay for the transaction. example: '0.1' EvmEip1559FeeBasePrice: type: object properties: max_fee_per_gas: type: string description: The maximum gas fee per gas unit used on the chain, in wei. example: '9000000000000' max_priority_fee_per_gas: type: string description: >- The maximum priority fee per gas unit used, in wei. The maximum priority fee represents the highest amount of miner tips that you are willing to pay for your transaction. example: '1000000000000' FeeGasLimit: type: object properties: gas_limit: type: string description: >- The gas limit. It represents the maximum number of gas units that you are willing to pay for the execution of a transaction or Ethereum Virtual Machine (EVM) operation. The gas unit cost of each operation varies. example: '21000' FeeReserved: type: object properties: reserved_fee: type: string description: >- The estimated fee required for submitting the transaction data to L1 (Layer 1), measured in wei. example: '1000000000000' FeeFallback: type: object description: The fallback information of an estimated transaction fee. properties: fallback: type: boolean description: > Whether the estimated transaction fee is generated by Cobo's fallback mechanism. Cobo uses the fallback mechanism when a normal fee estimation cannot be completed, for example when the blockchain node fails to estimate the gas limit. - `true`: The returned `gas_limit` is produced by Cobo's internal fallback strategy instead of a node estimation. It can differ significantly from the gas units that the transaction actually consumes, and a transaction submitted with this value may fail. Check `fallback_reason` and use the value with caution. - `false`: The returned fee values are generated by a normal fee estimation. example: true fallback_reason: type: string description: > The reason why Cobo's fallback mechanism was used, such as the error message returned by the blockchain node. This property is returned only when `fallback` is `true`. example: 'execution reverted: ERC20: transfer amount exceeds balance' EvmLegacyFeeBasePrice: type: object properties: gas_price: type: string description: >- The gas price, in wei. The gas price represents the amount of ETH that must be paid to validators for processing transactions per gas unit used. example: '100000000' UtxoFeeBasePrice: type: object properties: fee_rate: type: string description: >- The fee rate in sat/vByte. The fee rate represents the satoshis you are willing to pay for each byte of data that your transaction will consume on the blockchain. example: '50' SOLComputeUnit: type: object properties: compute_unit_price: type: string description: >- The price paid per compute unit. This value determines the priority fee for the transaction, allowing you to increase inclusion probability in congested conditions. example: '0.0001' compute_unit_limit: type: string description: >- The maximum number of compute units your transaction is allowed to consume. It sets an upper bound on computational resource usage to prevent overload. example: '200000' SOLBase: type: object properties: base_fee: type: string description: >- A fixed fee, in lamports, charged per signature. The default is 5,000 per signature. example: '5000' rent_amount: type: string description: > The one-time rent, in lamports, required to create the destination's Associated Token Account (ATA) for this token when it does not exist yet. In fee estimate responses, this field returns the current on-chain rent if the destination address has no ATA for the token, and is empty otherwise. You can call [Estimate transaction fee](https://www.cobo.com/developers/v2/api-references/transactions/estimate-transaction-fee) before submitting a transaction to check whether it will incur ATA rent. The result reflects the destination at estimation time; if the ATA is closed before the transaction is built, the transaction still creates it and incurs the rent. In transaction records, this field keeps the value estimated when the transaction was created and is not updated from on-chain data. `estimated_fee_used` includes this rent, while `fee_used` does not. example: '1488440' FILPrice: type: object properties: gas_premium: type: string description: >- An optional additional fee that users can include to prioritize their transactions over others. It acts like a tip to incentivize miners to select and include your transaction over transactions with only the base fee. example: '522508' gas_fee_cap: type: string description: >- The gas_fee_cap is a user-defined limit on how much they are willing to pay per unit of gas. example: '522768' gas_limit: type: string description: The maximum amount of gas your transaction is allowed to consume. example: '500' FILBase: type: object properties: gas_base: type: string description: >- This is the minimum fee required to include a transaction in a block. It is determined by the network's congestion level, which adjusts to maintain a target block utilization rate. The base fee is burned, reducing the total supply of Filecoin over time. example: '100' securitySchemes: CoboAuth: type: apiKey in: header name: BIZ-API-KEY description: > The API key. For more details, refer to [API key](https://www.cobo.com/developers/v2/guides/overview/cobo-auth#api-key). In the API playground, enter your [API secret](https://www.cobo.com/developers/v2/guides/overview/cobo-auth#api-secret), and your API key will be accordingly calculated. OAuth2: type: oauth2 description: >- The [Org Access Token](https://www.cobo.com/developers/v2/apps/org-access-tokens). Use this authorization method only if you are developing Cobo Portal Apps for installation and use across different organizations. flows: authorizationCode: authorizationUrl: https://auth.cobo.com/authorize tokenUrl: https://auth.cobo.com/oauth/token scopes: address_book.read: Read address book api_key.read: Read API key information callback.read: Read callback message callback.resend: Resend callback message wallet.create: Create wallet wallet.read: Read wallet information wallet.update: Update wallet information wallet.delete: Delete wallet information wallet.create_address: Create wallet address wallet.manage_utxo: Manage UTXO mpc_project.create: Create MPC project mpc_project.read: Read MPC project information mpc_project.update: Update MPC project information mpc_vault.create: Create MPC Vault mpc_vault.read: Read MPC Vault information mpc_vault.update: Update MPC Vault information mpc_key_group.create: Create MPC key group mpc_key_group.read: Read MPC key group information mpc_key_group.update: Update MPC key group information mpc_key_group.delete: Delete MPC key group information transaction.read: Read transaction information transaction.withdraw: Make withdrawals transaction.estimate_fee: Estimate transaction fee transaction.contract_call: Initiate contract calls transaction.message_sign: Initiate message signings transaction.stake: Stake assets transaction.unstake: Unstake assets transaction.unstake_withdraw: Withdraw unstaked assets transaction.manage: Manage ongoing transactions transaction.update: Update transaction notes travel_rule.read: Read travel rule information travel_rule.edit: Edit travel rule information webhook.read: Read webhook URLs/events webhook.edit: Edit webhook URLs webhook.resend: Resend webhook events payment_orders_payin.create: Create pay-in order payment_orders_payin.read: Read pay-in order information payment_orders_payin.update: Update pay-in order payment_orders_refund.create: Create payment refund order payment_orders_refund.read: Read payment refund order information payment_settlement.create: Create payment settlement request payment_settlement.read: Read payment settlement request information payment_merchant.create: Create payment merchant payment_merchant.read: Read payment merchant information payment_merchant.update: Update payment merchant payment_forced_sweep.create: Create payment force sweep request payment_forced_sweep.read: Read payment force sweep request information compliance_funds.refund: Refund compliance funds request compliance_funds.isolate: Isolate compliance funds request compliance_funds.unfreeze: Unfreeze compliance funds request compliance_funds.read: Read compliance funds request information compliance_kyt_review.update: Update KYT review status compliance_kyt_decisions.update: Update KYT decision status compliance_kyt_status.read: Read KYT screening status compliance_kya_screenings.create: Create KYA address screening requests compliance_kya_screenings.read: Read KYA address screening results ````