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Fetching Quotes

Flow of a transaction starts with fetching quotes for it.

Endpoint: GET /quotes 

/quotes
    ?fromChainId=
    &fromAssetAddress=
    &toChainId=
    &toAssetAddress=
    &inputAmountDisplay=
    &userWalletAddress=
    &recipient=

Query params

Field
Type
Description

fromChainId*

string

Source blockchain identifier

fromAssetAddress*

string

Token address on source chain

toChainId*

string

Destination blockchain identifier

toAssetAddress*

string

Token address on destination chain

inputAmountDisplay*

string

Human-readable input amount (e.g., “1.5”) Note: Either inputAmountDisplay or inputAmount should be passed

inputAmount*

string

Input amount in decimals units Note: Either inputAmountDisplay or inputAmount should be passed

userWalletAddress*

string

User’s wallet address

recipient

string

Final recipient of the tokens. If not provided userWalletAddress is used by default

slippage

number

Slippage tolerance in basis points (100 = 1%)

solanaOptions

SolanaOptions

Solana-specific parameters

evmOptions

EvmOptions

EVM-specific parameters

skipChecks

boolean

Skip validation checks

include

string

Comma-separated list of providers to include

exclude

string

Comma-separated list of providers to exclude

recommendedProvider

boolean

Use only recommended providers

Solana Options

Field
Type
Description

solanaPriorityFee

number | PriorityLevel

Priority fee in micro lamports or priority level

solanaJitoTip

number | PriorityLevel

Jito MEV tip in lamports or priority level

Evm Options

Field
Type
Description

evmPriorityFee

number | PriorityLevel

Priority fee in wei or priority level

PriorityLevel = 'low' | 'medium' | 'high' | 'ultra' | 'degen'

Response

A Route represents a complete path for token transfer, including all necessary steps and fee information.

Field
Type
Description

requestId

string

Unique identifier for the quote request

routeId

string

Unique identifier for this specific route

from

Asset

Source token details including chain and token information

to

Asset

Destination token details

steps

Steps[]

Array of execution steps (approval, swap, bridge, etc.)

fee

Fee[]

Breakdown of all fees involved

provider

Providers

Liquidity provider identifier

providerDetails

ProviderDetails

Additional provider information

protocolsUsed

string[]

List of protocols used in this route

inputAmount

string

Input amount in wei/native units

inputAmountDisplay

string

Human-readable input amount

outputAmount

string

Expected output in wei/native units

outputAmountDisplay

string

Human-readable output amount

minOutputAmount

string

Minimum output amount after slippage

minOutputAmountDisplay

string

Human-readable minimum output

slippage

number

Applied slippage tolerance in basis points

userWalletAddress

string

User's wallet address

recipient

string

Final recipient address

createdAt

number

Unix timestamp of quote creation

deadline

number

Unix timestamp when quote expires

estimatedTimeInSeconds

number

Estimated execution time

tags

string[]

Route classification tags

Example

The following example shows how to get quotes for a cross-chain swap transaction from Ethereum to Solana. We'll be fetching quotes for ETH on Ethereum to USDC on Solana.

Request:

https://api2.blockend.com/v1/quotes
    ?fromChainId=1
    &fromAssetAddress=0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    &toChainId=sol
    &toAssetAddress=EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
    &inputAmountDisplay=0.420
    &userWalletAddress=0x17e7c3DD600529F34eFA1310f00996709FfA8d5c
    &recipient=7zSa114U45nJ8b8ALsuhszS2Kxto8grgedh65Q7xJYii

Response:

{
    "status": "success",
    "data": {
        "quotes": [
            {
                "routeId": "01J2WB1NY6MD3F25CJTTB01D8F",
                "from": {
                    "networkType": "evm",
                    "chainId": "1",
                    "address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
                    "decimals": 18,
                    "name": "Ethereum",
                    "symbol": "ETH",
                    "isNative": true,
                    "isPopular": true,
                    "image": "https://assets.coingecko.com/coins/images/279/standard/ethereum.png?1595348880",
                    "priceId": "ethereum",
                    "blockchain": "Ethereum",
                    "lastPrice": 3480.62
                },
                "to": {
                    "symbol": "USDC",
                    "image": "https://assets.coingecko.com/coins/images/6319/small/usdc.png",
                    "priceId": "usd-coin",
                    "blockchain": "Solana",
                    "decimals": 6,
                    "address": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                    "networkType": "sol",
                    "isNative": false,
                    "isPopular": false,
                    "chainId": "sol",
                    "name": "USDC",
                    "lastPrice": 1.002
                },
                "steps": [
                    {
                        "stepId": "01J2WB1NY64MKVCM8FM994WMZV",
                        "stepType": "bridge",
                        "protocolsUsed": [
                            "Auction"
                        ],
                        "provider": "mayan",
                        "from": {
                            "networkType": "evm",
                            "chainId": "1",
                            "address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
                            "decimals": 18,
                            "name": "Ethereum",
                            "symbol": "ETH",
                            "isNative": true,
                            "isPopular": true,
                            "image": "https://assets.coingecko.com/coins/images/279/standard/ethereum.png?1595348880",
                            "priceId": "ethereum",
                            "blockchain": "Ethereum",
                            "lastPrice": 3480.62
                        },
                        "to": {
                            "symbol": "USDC",
                            "image": "https://assets.coingecko.com/coins/images/6319/small/usdc.png",
                            "priceId": "usd-coin",
                            "blockchain": "Solana",
                            "decimals": 6,
                            "address": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                            "networkType": "sol",
                            "isNative": false,
                            "isPopular": false,
                            "chainId": "sol",
                            "name": "USDC",
                            "lastPrice": 1.002
                        },
                        "fee": [
                            {
                                "token": {
                                    "networkType": "evm",
                                    "chainId": "1",
                                    "address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
                                    "decimals": 18,
                                    "name": "Ethereum",
                                    "symbol": "ETH",
                                    "isNative": true,
                                    "isPopular": true,
                                    "image": "https://assets.coingecko.com/coins/images/279/standard/ethereum.png?1595348880",
                                    "priceId": "ethereum",
                                    "blockchain": "Ethereum",
                                    "lastPrice": 3480.62
                                },
                                "amount": "1380475027400000",
                                "amountInEther": "1380475027400000",
                                "amountInUSD": "4.804908989868988",
                                "type": "network"
                            }
                        ],
                        "inputAmount": "420000000000000000",
                        "outputAmount": "1459244847",
                        "estimatedTimeInSeconds": 900
                    }
                ],
                "fee": [
                    {
                        "token": {
                            "networkType": "evm",
                            "chainId": "1",
                            "address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
                            "decimals": 18,
                            "name": "Ethereum",
                            "symbol": "ETH",
                            "isNative": true,
                            "isPopular": true,
                            "image": "https://assets.coingecko.com/coins/images/279/standard/ethereum.png?1595348880",
                            "priceId": "ethereum",
                            "blockchain": "Ethereum",
                            "lastPrice": 3480.62
                        },
                        "amount": "1380475027400000",
                        "amountInEther": "1380475027400000",
                        "amountInUSD": "4.804908989868988",
                        "type": "network"
                    }
                ],
                "provider": "mayan",
                "providerDetails": {
                    "id": "mayan",
                    "name": "Mayan",
                    "logoUrl": "https://blockend-widget.s3.ap-south-1.amazonaws.com/mayan.svg",
                    "websiteUrl": "https://mayan.finance/"
                },
                "protocolsUsed": [
                    "Auction"
                ],
                "inputAmount": "420000000000000000",
                "inputAmountDisplay": "0.420",
                "outputAmount": "1459244847",
                "outputAmountDisplay": "1459.244847",
                "minOutputAmount": "1459.098923",
                "minOutputAmountDisplay": "1459.098923",
                "slippage": 0,
                "recipient": "7zSa114U45nJ8b8ALsuhszS2Kxto8grgedh65Q7xJYii",
                "createdAt": 1721085515718,
                "deadline": 60,
                "estimatedTimeInSeconds": 900,
                "requestId": "01J2WB1K2D769PJRBMPNX1SKJT",
                "score": {
                    "outputScore": 1,
                    "speedScore": 0.0011111111111111111,
                    "feeScore": 1,
                    "slipparageScore": 0,
                    "stepScore": 1,
                    "outputDiffPercent": 0
                },
                "tags": [
                    "BEST_OUTPUT",
                    "CHEAP"
                ]
            },
            {
                "routeId": "01J2WB1MX7ZDHNB71GH3R52189",
                "from": {
                    "networkType": "evm",
                    "chainId": "1",
                    "address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
                    "decimals": 18,
                    "name": "Ethereum",
                    "symbol": "ETH",
                    "isNative": true,
                    "isPopular": true,
                    "image": "https://assets.coingecko.com/coins/images/279/standard/ethereum.png?1595348880",
                    "priceId": "ethereum",
                    "blockchain": "Ethereum",
                    "lastPrice": 3480.62
                },
                "to": {
                    "symbol": "USDC",
                    "image": "https://assets.coingecko.com/coins/images/6319/small/usdc.png",
                    "priceId": "usd-coin",
                    "blockchain": "Solana",
                    "decimals": 6,
                    "address": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                    "networkType": "sol",
                    "isNative": false,
                    "isPopular": false,
                    "chainId": "sol",
                    "name": "USDC",
                    "lastPrice": 1.002
                },
                "steps": [
                    {
                        "stepId": "01J2WB1MX7BJA7ZSN8K4KXF1VA",
                        "stepType": "bridge",
                        "protocolsUsed": [
                            "deBridge"
                        ],
                        "provider": "dln",
                        "from": {
                            "networkType": "evm",
                            "chainId": "1",
                            "address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
                            "decimals": 18,
                            "name": "Ethereum",
                            "symbol": "ETH",
                            "isNative": true,
                            "isPopular": true,
                            "image": "https://assets.coingecko.com/coins/images/279/standard/ethereum.png?1595348880",
                            "priceId": "ethereum",
                            "blockchain": "Ethereum",
                            "lastPrice": 3480.62
                        },
                        "to": {
                            "symbol": "USDC",
                            "image": "https://assets.coingecko.com/coins/images/6319/small/usdc.png",
                            "priceId": "usd-coin",
                            "blockchain": "Solana",
                            "decimals": 6,
                            "address": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                            "networkType": "sol",
                            "isNative": false,
                            "isPopular": false,
                            "chainId": "sol",
                            "name": "USDC",
                            "lastPrice": 1.002
                        },
                        "fee": [
                            {
                                "type": "network",
                                "token": {
                                    "networkType": "evm",
                                    "chainId": "1",
                                    "address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
                                    "decimals": 18,
                                    "name": "Ethereum",
                                    "symbol": "ETH",
                                    "isNative": true,
                                    "isPopular": true,
                                    "image": "https://assets.coingecko.com/coins/images/279/standard/ethereum.png?1595348880",
                                    "priceId": "ethereum",
                                    "blockchain": "Ethereum",
                                    "lastPrice": 3480.62
                                },
                                "amount": "5141425082200000",
                                "amountInEther": "5141425082200000",
                                "amountInUSD": "17.895346969606965"
                            }
                        ],
                        "inputAmount": "420000000000000000",
                        "outputAmount": "1449243299",
                        "estimatedTimeInSeconds": 1
                    }
                ],
                "fee": [
                    {
                        "type": "network",
                        "token": {
                            "networkType": "evm",
                            "chainId": "1",
                            "address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
                            "decimals": 18,
                            "name": "Ethereum",
                            "symbol": "ETH",
                            "isNative": true,
                            "isPopular": true,
                            "image": "https://assets.coingecko.com/coins/images/279/standard/ethereum.png?1595348880",
                            "priceId": "ethereum",
                            "blockchain": "Ethereum",
                            "lastPrice": 3480.62
                        },
                        "amount": "5141425082200000",
                        "amountInEther": "5141425082200000",
                        "amountInUSD": "17.895346969606965"
                    }
                ],
                "provider": "dln",
                "providerDetails": {
                    "id": "dln",
                    "name": "DLN",
                    "logoUrl": "https://dln.trade/assets/images/favicon/apple-touch-icon.png",
                    "websiteUrl": "https://dln.trade/"
                },
                "protocolsUsed": [
                    "deBridge"
                ],
                "inputAmount": "420000000000000000",
                "inputAmountDisplay": "0.420",
                "outputAmount": "1449243299",
                "outputAmountDisplay": "1449.243299",
                "minOutputAmount": "1449.243299",
                "minOutputAmountDisplay": "1449.243299",
                "slippage": 0.3,
                "recipient": "7zSa114U45nJ8b8ALsuhszS2Kxto8grgedh65Q7xJYii",
                "createdAt": 1721085514664,
                "deadline": 30,
                "estimatedTimeInSeconds": 1,
                "requestId": "01J2WB1K2D769PJRBMPNX1SKJT",
                "score": {
                    "outputScore": 0.9932454038279075,
                    "speedScore": 1,
                    "feeScore": 0.26850046540195793,
                    "slipparageScore": 0,
                    "stepScore": 1,
                    "outputDiffPercent": 0.00677748576178394
                },
                "tags": [
                    "BEST",
                    "FAST"
                ]
            }
        ]
    }
}
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