This guide uses a testing app ID. Create your own API key at portal.garden.finance.
- From Bitcoin
- From Litecoin
- From EVM
- From Tron
- From Solana
- From Starknet
- From HyperCore
- From Sui
1
Get Quote
Let’s get a quote to trade 0.0005 BTC on Bitcoin Testnet4 to WBTC on Base Sepolia.
curl -X 'GET' 'https://testnet.api.garden.finance/v2/quote?from=bitcoin_testnet:btc&to=base_sepolia:wbtc&from_amount=50000' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": [
{
"source": {
"asset": "bitcoin_testnet:btc",
"amount": "50000",
"display": "0.00050000",
"value": "58.8200"
},
"destination": {
"asset": "base_sepolia:wbtc",
"amount": "49850",
"display": "0.00049850",
"value": "58.6435"
},
"solver_id": "0x9dd9c2d208b07bf9a4ef9ca311f36d7185749635",
"estimated_time": 600,
"slippage": 50,
"fee": 30,
"fixed_fee": "0.0"
}
]
}
2
Submit Order
Once a quote is received, we can submit the order:
Use
amount and asset from the quote response. Use your wallet addresses for owner.curl --location 'https://testnet.api.garden.finance/v2/orders' \
--header 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
--header 'Content-Type: application/json' \
--data '{
"source": {
"asset": "bitcoin_testnet:btc",
"owner": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"amount": "50000"
},
"destination": {
"asset": "base_sepolia:wbtc",
"owner": "0x004Cc75ACF4132Fc08cB6a252E767804F303F729",
"amount": "49850"
}
}'
Response
{
"status": "Ok",
"result": {
"order_id": "f8a12d1320fce93c5888b6014abeb5f5de85ecc8c0eef8133f3da03822592121",
"to": "tb1ptt49v22dcst7mquwfsmcu2t56xjg07whtcgufvhjuj5zu89y6q0qn8fvfp",
"amount": "50000"
}
}
Send 0.0005 BTC to the
to address in the response. You may use our faucet on testnet.3
Check Order Status
Check the order status using the
order_id from the response.curl -X 'GET' \
'https://testnet.api.garden.finance/v2/orders/f8a12d1320fce93c5888b6014abeb5f5de85ecc8c0eef8133f3da03822592121' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": {
"created_at": "2025-07-09T04:38:18.632122Z",
"source_swap": {
"created_at": "2025-07-09T04:38:18.632122Z",
"swap_id": "tb1ptt49v22dcst7mquwfsmcu2t56xjg07whtcgufvhjuj5zu89y6q0qn8fvfp",
"chain": "bitcoin_testnet",
"asset": "bitcoin_testnet:btc",
"initiator": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"redeemer": "460f2e8ff81fc4e0a8e6ce7796704e3829e3e3eedb8db9390bdc51f4f04cf0a6",
"delegate": "8f716d079bd4a6cb5c47a24cd22c352ffb50089e4461043cfe3b1f0f9082eec8",
"timelock": 144,
"filled_amount": "500000",
"asset_price": 108468.0,
"amount": "500000",
"secret_hash": "3c4522983261f81e2e679346bbda5dddd8b4ea0367dd4073f73f13320d9dee62",
"secret": "8cb8a02d5592b0b1556978e1d778b7eff2c23519b8aa65970fa6ac3daa33fb40",
"instant_refund_tx": "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",
"initiate_tx_hash": "66e11d4099b9351f2b4981b921c2822af5665406968a4896d5b7a2083d56183a:90249",
"redeem_tx_hash": "7820a77ecd05f4182a0a5595e8364e221bdb1a440507d53bf20c5f658ae3cd67",
"refund_tx_hash": "",
"initiate_block_number": "90249",
"redeem_block_number": "90259",
"refund_block_number": "0",
"required_confirmations": 1,
"current_confirmations": 1,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"destination_swap": {
"created_at": "2025-07-09T04:38:18.632122Z",
"swap_id": "3ab702b4db8f9b54f56d4ceeab7811ee02447785605a2c5b8df7dcc071efed91",
"chain": "base_sepolia",
"asset": "base_sepolia:wbtc",
"initiator": "0x661bA32eb5f86CaB358DDbB7F264b10c5825e2dd",
"redeemer": "0x004Cc75ACF4132Fc08cB6a252E767804F303F729",
"timelock": 3600,
"filled_amount": "498500",
"asset_price": 108468.0,
"amount": "498500",
"secret_hash": "3c4522983261f81e2e679346bbda5dddd8b4ea0367dd4073f73f13320d9dee62",
"secret": "8cb8a02d5592b0b1556978e1d778b7eff2c23519b8aa65970fa6ac3daa33fb40",
"initiate_tx_hash": "0xfb354436bbd8bd57760d82bfb441442e796e60aa7f8cd9e0978aa94a73eab2b8",
"redeem_tx_hash": "0x7b3d81b0caddadbb35a9cf717b5f23b2ceddfa7a1a5251b2dbee723247cffdd6",
"refund_tx_hash": "",
"initiate_block_number": "28133930",
"redeem_block_number": "28133933",
"refund_block_number": "0",
"required_confirmations": 0,
"current_confirmations": 0,
"initiate_timestamp": "2025-07-09T04:42:28Z",
"redeem_timestamp": "2025-07-09T04:42:34Z",
"refund_timestamp": null
},
"nonce": "1751978328975",
"order_id": "f8a12d1320fce93c5888b6014abeb5f5de85ecc8c0eef8133f3da03822592121",
"affiliate_fees": [],
"version": "v2",
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d",
"integrator": "DocsTesting"
}
}
The swap is complete once the
order.destination_swap.redeem_tx_hash field is populated.1
Get Quote
Let’s get a quote to trade 0.01 LTC on Litecoin Testnet to WBTC on Base Sepolia.
curl -X 'GET' 'https://testnet.api.garden.finance/v2/quote?from=litecoin_testnet:ltc&to=base_sepolia:wbtc&from_amount=1000000' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": [
{
"source": {
"asset": "litecoin_testnet:ltc",
"amount": "1000000",
"display": "0.01000000",
"value": "0.7239"
},
"destination": {
"asset": "base_sepolia:wbtc",
"amount": "755",
"display": "0.00000755",
"value": "0.7218"
},
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d",
"estimated_time": 20,
"slippage": 0,
"fee": 30,
"fixed_fee": "0"
}
]
}
2
Submit Order
Once a quote is received, we can submit the order:
Use
amount and asset from the quote response. Use your wallet addresses for owner.curl --location 'https://testnet.api.garden.finance/v2/orders' \
--header 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
--header 'Content-Type: application/json' \
--data '{
"source": {
"asset": "litecoin_testnet:ltc",
"owner": "tltc1qycexnc7fjqh2x4dnaht6gumcjxdzkdpjnlxe4s",
"amount": "1000000"
},
"destination": {
"asset": "base_sepolia:wbtc",
"owner": "0x004Cc75ACF4132Fc08cB6a252E767804F303F729",
"amount": "755"
}
}'
Response
{
"status": "Ok",
"result": {
"order_id": "353e76a02a46c493a600f0a35e7e873dab370633f16f1d27af2570fc12ada3e8",
"to": "tltc1p9am469q2d6mfpkgrlgpd4c7tzv2lv5rug2yn9vz6vx0myj9jr5kqrc76rt",
"amount": "1000000"
}
}
Send 0.01 LTC to the
to address in the response. You may use this faucet on testnet.3
Check Order Status
Check the order status using the
order_id from the response.curl -X 'GET' \
'https://testnet.api.garden.finance/v2/orders/353e76a02a46c493a600f0a35e7e873dab370633f16f1d27af2570fc12ada3e8' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": {
"created_at": "2026-01-08T06:03:46.125199Z",
"source_swap": {
"created_at": "2026-01-08T06:03:46.125199Z",
"swap_id": "tltc1pqujpwdy2syf0agyyeg8xn0nwhy8qjxe9sqchmv563q7up9cgzc5q5cdl6s",
"chain": "litecoin_testnet",
"asset": "litecoin_testnet:ltc",
"initiator": "c3989e1d1359c83db04785c14ee84f05210acc3bb4d270619559632869c15c3b",
"redeemer": "2623c14333640ab262b4dda40382e64da8c20e78e98d597e218568fb5fe3e283",
"timelock": 144,
"filled_amount": "1000000",
"asset_price": 81.64041962329875,
"amount": "1000000",
"secret_hash": "81e8dd7fd72d336f2ac3fbdece4d046054d0d114c511bf831cf4df61097c9aa5",
"secret": "197b2e1e1105c9bec013e9a081dd13378855bd7a3b65b3fcd396a0d965bc506f",
"initiate_tx_hash": "6dc881199ce0fac5287cf55761dceec7347bbb328fe6fc7f13207afe06f5f3f6:4512211",
"redeem_tx_hash": "c6d176a2be224686e43cc837bd70f05b64711b314aa91015c42b8a31a7f35ce1",
"refund_tx_hash": "",
"initiate_block_number": "4512211",
"redeem_block_number": "4512212",
"refund_block_number": "0",
"required_confirmations": 1,
"current_confirmations": 1,
"initiate_timestamp": "2026-01-08T06:08:10Z",
"redeem_timestamp": "2026-01-08T06:12:39Z",
"refund_timestamp": null
},
"destination_swap": {
"created_at": "2026-01-08T06:03:46.125199Z",
"swap_id": "8334288fa1924abe3c89bbc709e95f8caae605534a6cd268315f943d6bd72c19",
"chain": "base_sepolia",
"asset": "base_sepolia:wbtc",
"initiator": "0x133C4FCaBf1e79AE04100da0cDEC281a82ca226C",
"redeemer": "0xf519fa84c50E3459a570a1a514d2eaA960AFf934",
"timelock": 3600,
"filled_amount": "896",
"asset_price": 90802.0,
"amount": "896",
"secret_hash": "81e8dd7fd72d336f2ac3fbdece4d046054d0d114c511bf831cf4df61097c9aa5",
"secret": "197b2e1e1105c9bec013e9a081dd13378855bd7a3b65b3fcd396a0d965bc506f",
"initiate_tx_hash": "0xa28991ceecde416fd5acec5863ce0688d6e2500af2f94156ed4baf22a3b04f36",
"redeem_tx_hash": "0x2c4c740be46277f4ac9b12b438f9278fd49ca403c742a0860ad0cd10ab04d381",
"refund_tx_hash": "",
"initiate_block_number": "36042112",
"redeem_block_number": "36042116",
"refund_block_number": "0",
"required_confirmations": 0,
"current_confirmations": 0,
"initiate_timestamp": "2026-01-08T06:08:32Z",
"redeem_timestamp": "2026-01-08T06:08:40Z",
"refund_timestamp": null
},
"nonce": "1767852225934",
"order_id": "353e76a02a46c493a600f0a35e7e873dab370633f16f1d27af2570fc12ada3e8",
"affiliate_fees": [],
"integrator": "DocsTesting",
"version": "v3",
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d"
}
}
The swap is complete once the
order.destination_swap.redeem_tx_hash field is populated.1
Get Quote
Let’s get a quote to trade 0.0005 WBTC on Ethereum Sepolia to BTC on Bitcoin Testnet4.
curl -X 'GET' 'https://testnet.api.garden.finance/v2/quote?from=ethereum_sepolia:wbtc&to=bitcoin_testnet:btc&from_amount=50000' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": [
{
"source": {
"asset": "ethereum_sepolia:wbtc",
"amount": "50000",
"display": "0.00050000",
"value": "58.8700"
},
"destination": {
"asset": "bitcoin_testnet:btc",
"amount": "49850",
"display": "0.00049850",
"value": "58.6933"
},
"solver_id": "0x9dd9c2d208b07bf9a4ef9ca311f36d7185749635",
"estimated_time": 20,
"slippage": 50,
"fee": 30,
"fixed_fee": "0.0"
}
]
}
2
Submit Order
Once a quote is received, we can submit the order:Then deposit the funds:
Use
amount and asset from the quote response. Use your wallet addresses for owner.curl --location 'https://testnet.api.garden.finance/v2/orders' \
--header 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
--header 'Content-Type: application/json' \
--data '{
"source": {
"asset": "ethereum_sepolia:wbtc",
"owner": "0x4cD3FB4a504cc978f316a81Dc5165D2C5b30592d",
"amount": "50000"
},
"destination": {
"asset": "bitcoin_testnet:btc",
"owner": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"amount": "49850"
}
}'
Response
{
"status": "Ok",
"result": {
"approval_transaction": {
"chain_id": 11155111,
"data": "0x095ea7b3000000000000000000000000d1e0ba2b165726b3a6051b765d4564d030fdcf50ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"gas_limit": "0xea60",
"to": "0xe918a5a47b8e0afac2382bc5d1e981613e63fb07",
"value": "0x0"
},
"initiate_transaction": {
"chain_id": 11155111,
"data": "0x97ffc7ae000000000000000000000000661ba32eb5f86cab358ddbb7f264b10c5825e2dd0000000000000000000000000000000000000000000000000000000000001c20000000000000000000000000000000000000000000000000000000000000c3507b32dd44045d8d6fc477615d0d72f42fc7696078e44724fe64c85b563fc8f306",
"gas_limit": "0x493e0",
"to": "0xd1e0ba2b165726b3a6051b765d4564d030fdcf50",
"value": "0x0"
},
"order_id": "7e69c6514fa6c7a46b88e235e484d9958029cbe748e125add69b1ffcf7265198",
"typed_data": {
"domain": {
"chainId": "0xaa36a7",
"name": "HTLC",
"verifyingContract": "0xd1e0ba2b165726b3a6051b765d4564d030fdcf50",
"version": "3"
},
"message": {
"amount": "0xc350",
"redeemer": "0x661ba32eb5f86cab358ddbb7f264b10c5825e2dd",
"secretHash": "0x7b32dd44045d8d6fc477615d0d72f42fc7696078e44724fe64c85b563fc8f306",
"timelock": "0x1c20"
},
"primaryType": "Initiate",
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Initiate": [
{
"name": "redeemer",
"type": "address"
},
{
"name": "timelock",
"type": "uint256"
},
{
"name": "amount",
"type": "uint256"
},
{
"name": "secretHash",
"type": "bytes32"
}
]
}
}
}
}
- Submit transaction
- Gasless submission
await window.ethereum.request({
method: 'eth_sendTransaction',
params: [response.result.transaction]
});
// Sign typed data.
const signature = await window.ethereum.request({
method: 'eth_signTypedData_v4',
params: [userAddress, JSON.stringify(response.result.typed_data)]
});
// Initiate the swap with the signature.
await fetch(`https://testnet.api.garden.finance/v2/orders/${response.result.order_id}?action=initiate`, {
method: 'PATCH',
headers: {
'garden-app-id': 'f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796',
'Content-Type': 'application/json'
},
body: JSON.stringify({ signature })
});
3
Check Order Status
Check the order status using the
order_id from the response.curl -X 'GET' \
'https://testnet.api.garden.finance/v2/orders/7e69c6514fa6c7a46b88e235e484d9958029cbe748e125add69b1ffcf7265198' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": {
"created_at": "2025-09-01T06:48:02.138492Z",
"source_swap": {
"created_at": "2025-09-01T06:48:02.138492Z",
"swap_id": "f511550e9629124790646668b8cdc2a42bbdc9b9333857c4fdd3f1bf514b6575",
"chain": "ethereum_sepolia",
"asset": "ethereum_sepolia:wbtc",
"initiator": "0x4cD3FB4a504cc978f316a81Dc5165D2C5b30592d",
"redeemer": "0x661bA32eb5f86CaB358DDbB7F264b10c5825e2dd",
"timelock": 7200,
"filled_amount": "0",
"asset_price": 108107,
"amount": "50000",
"secret_hash": "7b32dd44045d8d6fc477615d0d72f42fc7696078e44724fe64c85b563fc8f306",
"secret": "",
"initiate_tx_hash": "",
"redeem_tx_hash": "",
"refund_tx_hash": "",
"initiate_block_number": "0",
"redeem_block_number": "0",
"refund_block_number": "0",
"required_confirmations": 1,
"current_confirmations": 0,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"destination_swap": {
"created_at": "2025-09-01T06:48:02.138492Z",
"swap_id": "tb1peepw3gum369qfu7zgnd6jq5sk77q5wyuzmznlpavzmeq8x72kcyqr66rxg",
"chain": "bitcoin_testnet",
"asset": "bitcoin_testnet:btc",
"initiator": "460f2e8ff81fc4e0a8e6ce7796704e3829e3e3eedb8db9390bdc51f4f04cf0a6",
"redeemer": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"delegate": "03f4776668ef95e35ff2d51d8c59eb7a461bb2354b540553d8455dbec91087c1",
"timelock": 12,
"filled_amount": "0",
"asset_price": 108107,
"amount": "49850",
"secret_hash": "7b32dd44045d8d6fc477615d0d72f42fc7696078e44724fe64c85b563fc8f306",
"secret": "",
"initiate_tx_hash": "",
"redeem_tx_hash": "",
"refund_tx_hash": "",
"initiate_block_number": "0",
"redeem_block_number": "0",
"refund_block_number": "0",
"required_confirmations": 0,
"current_confirmations": 0,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"nonce": "4326423548464636342",
"order_id": "7e69c6514fa6c7a46b88e235e484d9958029cbe748e125add69b1ffcf7265198",
"affiliate_fees": [],
"integrator": "DocsTesting",
"version": "v3",
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d"
}
}
The swap is complete once the
order.destination_swap.redeem_tx_hash field is populated.1
Get Quote
Let’s get a quote to trade 0.0005 WBTC on Tron Shasta to WBTC on Arbitrum Sepolia.
curl -X 'GET' 'https://testnet.api.garden.finance/v2/quote?from=tron_shasta:wbtc&to=arbitrum_sepolia:wbtc&from_amount=50000' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": [
{
"source": {
"asset": "tron_shasta:wbtc",
"amount": "50000",
"display": "0.00050000",
"value": "50.00"
},
"destination": {
"asset": "arbitrum_sepolia:wbtc",
"amount": "49850",
"display": "0.00049850",
"value": "49.85"
},
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d",
"estimated_time": 20,
"slippage": 0,
"fee": 30,
"fixed_fee": "0"
}
]
}
2
Submit Order
Once a quote is received, we can submit the order:Then deposit the funds:
Use
amount and asset from the quote response. Use your wallet addresses for owner.curl --location 'https://testnet.api.garden.finance/v2/orders' \
--header 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
--header 'Content-Type: application/json' \
--data '{
"source": {
"asset": "tron_shasta:wbtc",
"owner": "TWbEz5ibiL6dreiLJ5oBF5CwDkw6Xfe6KX",
"amount": "50000"
},
"destination": {
"asset": "arbitrum_sepolia:wbtc",
"owner": "0xA39ABb978cfd2ba459163ad1EaB6E8940Fbf4359",
"amount": "49850"
}
}'
Response
{
"status": "Ok",
"result": {
"approval_transaction": {
"chain_id": 2494104990,
"data": "0x095ea7b30000000000000000000000001ce431493d15db597bbc1c74ae09407a76f19458ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"gas_limit": "500000000",
"to": "TCbyHXPZ2o3qPfQUSrqPoS3NkwEJ94P3AS",
"value": "0"
},
"initiate_transaction": {
"chain_id": 2494104990,
"data": "0x4ede0ab70000000000000000000000006b887db9741368e35c2e986a2bdae326632d06f80000000000000000000000000000000000000000000000000000000000069780000000000000000000000000000000000000000000000000000000012a05f200df8f1793684d3bbbd41aa803c8180807977e2aa33b67f63a7addbcf16831e15800000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000000",
"gas_limit": "500000000",
"to": "TCbyHXPZ2o3qPfQUSrqPoS3NkwEJ94P3AS",
"value": "0"
},
"order_id": "23a75a6030f2cfe9381ccb78788513a0b82b1a2bb912145ca89af8c123cf3e2d",
"typed_data": {
"domain": {
"chainId": "2494104990",
"name": "HTLC",
"verifyingContract": "TCbyHXPZ2o3qPfQUSrqPoS3NkwEJ94P3AS",
"version": "3"
},
"message": {
"amount": "5000000000",
"destinationData": "0x",
"redeemer": "TKmnp9reskx58cYACSzvbXDBr7hKFh7XHS",
"secretHash": "9bf64d0cd7a8f0d254dcc48724e4d2969fdf8dfc25619bc622a3bcecb33e29c8",
"timelock": 432000
},
"primaryType": "Initiate",
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Initiate": [
{
"name": "redeemer",
"type": "address"
},
{
"name": "timelock",
"type": "uint256"
},
{
"name": "amount",
"type": "uint256"
},
{
"name": "secretHash",
"type": "bytes32"
},
{
"name": "destinationData",
"type": "bytes"
}
]
}
}
}
}
- Submit transaction
- Gasless submission
// Dependencies: "tronweb": "6.0.4"
// Approval transaction
const dataWithoutSelector = '0x' + response.result.approval_transaction.data.slice(10);
const params = window.tronWeb.utils.abi.decodeParams(
['spender', 'amount'],
['address', 'uint256'],
dataWithoutSelector,
false,
);
const approval_transaction = await window.tronWeb.transactionBuilder.triggerSmartContract(
response.result.approval_transaction.to,
'approve(address,uint256)',
{ feeLimit: parseInt(response.result.approval_transaction.gas_limit), callValue: parseInt(response.result.approval_transaction.value) },
[
{ type: 'address', value: params.spender },
{ type: 'uint256', value: params.amount.toString() },
],
window.tronWeb.defaultAddress.base58
);
const approval_signedTx = await window.tronWeb.trx.sign(approval_transaction.transaction);
const approval_broadcastResult = await window.tronWeb.trx.sendRawTransaction(approval_signedTx);
// Initiate transaction
const initiate_transaction = await window.tronWeb.transactionBuilder.triggerSmartContract(
response.result.initiate_transaction.to,
'initiate(address,uint256,uint256,bytes32,bytes)',
{
feeLimit: parseInt(response.result.initiate_transaction.gas_limit),
callValue: parseInt(response.result.initiate_transaction.value)
},
[
{ type: 'address', value: response.result.typed_data.message.redeemer },
{ type: 'uint256', value: response.result.typed_data.message.timelock },
{ type: 'uint256', value: response.result.typed_data.message.amount },
{ type: 'bytes32', value: toBytes32Hex(String(response.result.typed_data.message.secretHash)) },
{ type: 'bytes', value: response.result.typed_data.message.destinationData },
],
window.tronWeb.defaultAddress.base58
);
const initiate_signedTx = await window.tronWeb.trx.sign(initiate_transaction.transaction);
const initiate_broadcastResult = await window.tronWeb.trx.sendRawTransaction(initiate_signedTx);
// Dependencies: "tronweb": "6.0.4"
const typedData = response.result.typed_data;
const types = { ...typedData.types };
delete types.EIP712Domain;
types.Initiate = types.Initiate.filter(
(field) => field.name !== 'destinationData'
);
const message = { ...typedData.message };
delete message.destinationData;
// Sign typed data using TronWeb
const signature = await window.tronWeb.trx._signTypedData(
typedData.domain,
types,
message
);
// Initiate the swap with the signature.
await fetch(`https://testnet.api.garden.finance/v2/orders/${response.result.order_id}?action=initiate`, {
method: 'PATCH',
headers: {
'garden-app-id': 'f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796',
'Content-Type': 'application/json'
},
body: JSON.stringify({ signature })
});
3
Check Order Status
Check the order status using the
order_id from the response.curl -X 'GET' \
'https://testnet.api.garden.finance/v2/orders/b0d73ffcc814f4b6476be779d588985aeb178ba6eeee27a5cf4d9d33461b4005' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": {
"created_at": "2026-01-16T11:16:46.050428Z",
"source_swap": {
"created_at": "2026-01-16T11:16:46.050428Z",
"swap_id": "2db870aaaf5a2b65d2362da52ef564f42d88542f38e55dacdcb802d5eabef44b",
"chain": "tron_shasta",
"asset": "tron_shasta:wbtc",
"initiator": "TWbEz5ibiL6dreiLJ5oBF5CwDkw6Xfe6KX",
"redeemer": "TKmnp9reskx58cYACSzvbXDBr7hKFh7XHS",
"timelock": 432000,
"filled_amount": "50000",
"asset_price": 95291.0,
"amount": "50000",
"secret_hash": "9bf64d0cd7a8f0d254dcc48724e4d2969fdf8dfc25619bc622a3bcecb33e29c8",
"secret": "f1a5f527cdffa795cd571b833e726a67df4ecfa77f5b01cbecd6c35c1e74eca4",
"initiate_tx_hash": "0xc85acba4e03fb55807049ee048b96081b5686a6ceee4ea382d3cfa8f36d1a4c5",
"redeem_tx_hash": "0xc66c1bfb1b6b276556a5a034f67b0525bedc44184827b68dd9147fbdf666c434",
"refund_tx_hash": "",
"initiate_block_number": "61503886",
"redeem_block_number": "61503898",
"refund_block_number": "0",
"required_confirmations": 1,
"current_confirmations": 1,
"initiate_timestamp": "2026-01-16T11:17:36Z",
"redeem_timestamp": "2026-01-16T11:18:18Z",
"refund_timestamp": null
},
"destination_swap": {
"created_at": "2026-01-16T11:16:46.050428Z",
"swap_id": "ce80898324c992c2112d8caafe8d2cc95c1c167ef1934bc6eed610c4b235b923",
"chain": "arbitrum_sepolia",
"asset": "arbitrum_sepolia:wbtc",
"initiator": "0x35ac29159116f687fa7dec74c3331a2d5bb1e89e",
"redeemer": "0xA39ABb978cfd2ba459163ad1EaB6E8940Fbf4359",
"timelock": 36000,
"filled_amount": "49850",
"asset_price": 95291.0,
"amount": "49850",
"secret_hash": "9bf64d0cd7a8f0d254dcc48724e4d2969fdf8dfc25619bc622a3bcecb33e29c8",
"secret": "f1a5f527cdffa795cd571b833e726a67df4ecfa77f5b01cbecd6c35c1e74eca4",
"initiate_tx_hash": "0xc520b684eb9376b83622fb12871a8a96b5cdf4be68914abd426d24850ccf310f",
"redeem_tx_hash": "0x1abd4e96badd88915547c0c67bea14de545fc78dc4e034aa37dc3ee94243bbf5",
"refund_tx_hash": "",
"initiate_block_number": "233982423",
"redeem_block_number": "233982458",
"refund_block_number": "0",
"required_confirmations": 0,
"current_confirmations": 0,
"initiate_timestamp": "2026-01-16T11:17:59Z",
"redeem_timestamp": "2026-01-16T11:18:07Z",
"refund_timestamp": null
},
"nonce": "1768562205873",
"order_id": "b0d73ffcc814f4b6476be779d588985aeb178ba6eeee27a5cf4d9d33461b4005",
"affiliate_fees": [],
"integrator": "DocsTesting",
"version": "v3",
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d"
}
}
The swap is complete once the
order.destination_swap.redeem_tx_hash field is populated.1
Get Quote
Let’s get a quote to trade 0.354608265 SOL on Solana Testnet to BTC on Bitcoin Testnet4.
curl -X 'GET' 'https://testnet.api.garden.finance/v2/quote?from=solana_testnet:sol&to=bitcoin_testnet:btc&from_amount=354608265' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": [
{
"source": {
"asset": "solana_testnet:sol",
"amount": "354608265",
"display": "0.35460826",
"value": "57.1238"
},
"destination": {
"asset": "bitcoin_testnet:btc",
"amount": "48515",
"display": "0.00048515",
"value": "56.9524"
},
"solver_id": "0x9dd9c2d208b07bf9a4ef9ca311f36d7185749635",
"estimated_time": 20,
"slippage": 50,
"fee": 30,
"fixed_fee": "0.0"
}
]
}
2
Submit Order
Once a quote is received, we can submit the order:Then deposit the funds:
Use
amount and asset from the quote response. Use your wallet addresses for owner.curl --location 'https://testnet.api.garden.finance/v2/orders' \
--header 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
--header 'Content-Type: application/json' \
--data '{
"source": {
"asset": "solana_testnet:sol",
"owner": "YH4btvqb4JBWSEJh22MuA231ekpJ5JqbBXQY1apJtKH",
"amount": "354608265"
},
"destination": {
"asset": "bitcoin_testnet:btc",
"owner": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"amount": "48515"
}
}'
Response
{
"status": "Ok",
"result": {
"order_id": "ee54521431fd3b7c01f46f2aaec086362d8cf2d6a7d3b31233c66c31bed9e4eb",
"versioned_tx": "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",
"versioned_tx_gasless": null
}
}
- Submit transaction
- Gasless submission
// Decode and deserialize the `versioned_tx` field
const buffer = Buffer.from(response.result.versioned_tx, 'base64');
const transaction = VersionedTransaction.deserialize(buffer);
// Sign and send using your wallet.
const signature = await wallet.signAndSendTransaction(transaction);
Currently, this is only supported for Solana SPL orders.
As such,
versioned_tx_gasless will be null for Solana orders with native SOL.// Note the use of `versioned_tx_gasless`
const buffer = Buffer.from(response.result.versioned_tx_gasless, 'base64');
const transaction = VersionedTransaction.deserialize(buffer);
// Sign using your wallet
const signedTransaction = await wallet.signTransaction(transaction);
// Serialize and base64 encode the signed transaction
const encodedTx = Buffer.from(signedTransaction.serialize()).toString('base64');
// Pass this encoded transaction to the garden API
await fetch(`https://testnet.api.garden.finance/v2/orders/${response.result.order_id}?action=initiate`, {
method: 'PATCH',
headers: {
'garden-app-id': 'f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796',
'Content-Type': 'application/json'
},
body: JSON.stringify({ signature: encodedTx })
});
3
Check Order Status
Check the order status using the
order_id from the response.curl -X 'GET' \
'https://testnet.api.garden.finance/v2/orders/ee54521431fd3b7c01f46f2aaec086362d8cf2d6a7d3b31233c66c31bed9e4eb' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": {
"created_at": "2025-07-13T01:35:18.538262Z",
"source_swap": {
"created_at": "2025-07-13T01:35:18.538262Z",
"swap_id": "4629969e622608f634a4be4116f80be482ef987bccf30ef9900eb3e0f242eb77",
"chain": "solana_testnet",
"asset": "solana_testnet:sol",
"initiator": "YH4btvqb4JBWSEJh22MuA231ekpJ5JqbBXQY1apJtKH",
"redeemer": "5aYv3mxzXupjUa6Yyi23Yn3n1kbgGEDfrJ6uBDq6VwQo",
"timelock": 216000,
"filled_amount": "0",
"asset_price": 161.11,
"amount": "354608265",
"secret_hash": "b8841dc97c588ab9e1b94f62627b97d54f8c1048b28c26749d413032e9d66c4e",
"secret": "",
"initiate_tx_hash": "",
"redeem_tx_hash": "",
"refund_tx_hash": "",
"initiate_block_number": "0",
"redeem_block_number": "0",
"refund_block_number": "0",
"required_confirmations": 1,
"current_confirmations": 0,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"destination_swap": {
"created_at": "2025-07-13T01:35:18.538262Z",
"swap_id": "tb1pydwnxvdwfhs674py5z7wfst9nvm2t92s9lpfs6l7v4e0tsfxx64shepc0x",
"chain": "bitcoin_testnet",
"asset": "bitcoin_testnet:btc",
"initiator": "460f2e8ff81fc4e0a8e6ce7796704e3829e3e3eedb8db9390bdc51f4f04cf0a6",
"redeemer": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"delegate": "be7d111dca1cc2b967d1d1a20bf05c2cd5050307b072dd8bfccdf8cd52fddae7",
"timelock": 12,
"filled_amount": "0",
"asset_price": 161.11,
"amount": "48515",
"secret_hash": "b8841dc97c588ab9e1b94f62627b97d54f8c1048b28c26749d413032e9d66c4e",
"secret": "",
"initiate_tx_hash": "",
"redeem_tx_hash": "",
"refund_tx_hash": "",
"initiate_block_number": "0",
"redeem_block_number": "0",
"refund_block_number": "0",
"required_confirmations": 0,
"current_confirmations": 0,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"nonce": "18331192702570975643",
"order_id": "ee54521431fd3b7c01f46f2aaec086362d8cf2d6a7d3b31233c66c31bed9e4eb",
"affiliate_fees": [],
"integrator": "DocsTesting",
"version": "v1",
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d"
}
}
The swap is complete once the
order.destination_swap.redeem_tx_hash field is populated.1
Get Quote
Let’s get a quote to trade 0.0005 WBTC on Starknet Sepolia to BTC on Bitcoin Testnet4.
curl -X 'GET' 'https://testnet.api.garden.finance/v2/quote?from=starknet_sepolia:wbtc&to=bitcoin_testnet:btc&from_amount=50000' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": [
{
"source": {
"asset": "starknet_sepolia:wbtc",
"amount": "50000",
"display": "0.00050000",
"value": "58.8800"
},
"destination": {
"asset": "bitcoin_testnet:btc",
"amount": "49850",
"display": "0.00049850",
"value": "58.7033"
},
"solver_id": "0x9dd9c2d208b07bf9a4ef9ca311f36d7185749635",
"estimated_time": 20,
"slippage": 50,
"fee": 30,
"fixed_fee": "0.0"
}
]
}
2
Submit Order
Once a quote is received, we can submit the order:Then deposit the funds:
Use
amount and asset from the quote response. Use your wallet addresses for owner.curl --location 'https://testnet.api.garden.finance/v2/orders' \
--header 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
--header 'Content-Type: application/json' \
--data '{
"source": {
"asset": "starknet_sepolia:wbtc",
"owner": "0x00609190b1348bcc06da44d58c79709495c11a5a6f0b9e154e1209f2a17dd933",
"amount": "50000"
},
"destination": {
"asset": "bitcoin_testnet:btc",
"owner": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"amount": "49850"
}
}'
Response
{
"status": "Ok",
"result": {
"approval_transaction": {
"calldata": [
"0x6579d255314109429a4477d89629bc2b94f529ae01979c2f8014f9246482603",
"0xffffffffffffffffffffffffffffffff",
"0xffffffffffffffffffffffffffffffff"
],
"selector": "0x219209e083275171774dab1df80982e9df2096516f06319c5c6d71ae0a8480c",
"to": "0x496bef3ed20371382fbe0ca6a5a64252c5c848f9f1f0cccf8110fc4def912d5"
},
"initiate_transaction": {
"calldata": [
"0x78f8ae98fe78b5df9d3755b5910864c028d5249b4af685eb45687b1b76a4205",
"0xb40",
"0xc350",
"0x0",
"0x5e0dfe4c",
"0x3c6495a",
"0x5f81f922",
"0x204d8c16",
"0x964f6ca5",
"0xcc766f3a",
"0x6a4cc6cd",
"0x2117fdb4"
],
"selector": "0x2aed25fcd0101fcece997d93f9d0643dfa3fbd4118cae16bf7d6cd533577c28",
"to": "0x6579d255314109429a4477d89629bc2b94f529ae01979c2f8014f9246482603"
},
"order_id": "f64db51ba3894ba3720925aaa816d4eb538f623802686595bf8ac50ecbc68bad",
"typed_data": {
"domain": {
"chainId": "0x534e5f5345504f4c4941",
"name": "HTLC",
"revision": 1,
"version": "0x31"
},
"message": {
"amount": {
"high": "0x0",
"low": "0xc350"
},
"redeemer": "3419807808164513772718725483164424774502669183354591566218616648407888577029",
"secretHash": [
1577975372,
63326554,
1602353442,
541953046,
2521787557,
3430313786,
1783416525,
555220404
],
"timelock": "2880"
},
"primaryType": "Initiate",
"types": {
"Initiate": [
{
"name": "redeemer",
"type": "ContractAddress"
},
{
"name": "amount",
"type": "u256"
},
{
"name": "timelock",
"type": "u128"
},
{
"name": "secretHash",
"type": "u128*"
}
],
"StarknetDomain": [
{
"name": "name",
"type": "shortstring"
},
{
"name": "version",
"type": "shortstring"
},
{
"name": "chainId",
"type": "shortstring"
},
{
"name": "revision",
"type": "shortstring"
}
]
}
}
}
}
- Submit transaction
- Gasless submission
await account.execute([{
contractAddress: response.result.transaction.to,
entrypoint: response.result.transaction.selector,
calldata: response.result.transaction.calldata
}]);
// Sign typed data.
const signature = await account.signMessage(response.result.typed_data);
// Initiate the swap with the signature.
await fetch(`https://testnet.api.garden.finance/v2/orders/${response.result.order_id}?action=initiate`, {
method: 'PATCH',
headers: {
'garden-app-id': 'f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796',
'Content-Type': 'application/json'
},
body: JSON.stringify({ signature })
});
3
Check Order Status
Check the order status using the
order_id from the response.curl -X 'GET' \
'https://testnet.api.garden.finance/v2/orders/f64db51ba3894ba3720925aaa816d4eb538f623802686595bf8ac50ecbc68bad' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": {
"created_at": "2025-09-01T07:02:07.851646Z",
"source_swap": {
"created_at": "2025-09-01T07:02:07.851646Z",
"swap_id": "3ef65007bb6cabe9749309ecfb4e343bc31c3f1e66865dd49623c557c275dcb",
"chain": "starknet_sepolia",
"asset": "starknet_sepolia:wbtc",
"initiator": "0x00609190b1348bcc06da44d58c79709495c11a5a6f0b9e154e1209f2a17dd933",
"redeemer": "0x078f8ae98fe78b5df9d3755b5910864c028d5249b4af685eb45687b1b76a4205",
"timelock": 2880,
"filled_amount": "0",
"asset_price": 108201,
"amount": "50000",
"secret_hash": "5e0dfe4c03c6495a5f81f922204d8c16964f6ca5cc766f3a6a4cc6cd2117fdb4",
"secret": "",
"initiate_tx_hash": "",
"redeem_tx_hash": "",
"refund_tx_hash": "",
"initiate_block_number": "0",
"redeem_block_number": "0",
"refund_block_number": "0",
"required_confirmations": 1,
"current_confirmations": 0,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"destination_swap": {
"created_at": "2025-09-01T07:02:07.851646Z",
"swap_id": "tb1p3nug6w3cjtnvjuu43aytqtnx5420q6nmntzsrdkngk4na7ny4x7qfayy5n",
"chain": "bitcoin_testnet",
"asset": "bitcoin_testnet:btc",
"initiator": "460f2e8ff81fc4e0a8e6ce7796704e3829e3e3eedb8db9390bdc51f4f04cf0a6",
"redeemer": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"delegate": "e6ca4c227c7e048c5d605bfe478e79ee313de490cdfbb11160c2cc1221dbdc71",
"timelock": 12,
"filled_amount": "0",
"asset_price": 108201,
"amount": "49850",
"secret_hash": "5e0dfe4c03c6495a5f81f922204d8c16964f6ca5cc766f3a6a4cc6cd2117fdb4",
"secret": "",
"initiate_tx_hash": "",
"redeem_tx_hash": "",
"refund_tx_hash": "",
"initiate_block_number": "0",
"redeem_block_number": "0",
"refund_block_number": "0",
"required_confirmations": 0,
"current_confirmations": 0,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"nonce": "5463708687999347822",
"order_id": "f64db51ba3894ba3720925aaa816d4eb538f623802686595bf8ac50ecbc68bad",
"affiliate_fees": [],
"integrator": "DocsTesting",
"version": "v2",
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d"
}
}
The swap is complete once the
order.destination_swap.redeem_tx_hash field is populated.1
Get Quote
Let’s get a quote to trade 10 PURR on HyperCore (Testnet) to SOL on Solana Testnet.
curl -X 'GET' 'https://testnet.api.garden.finance/v2/quote?from=hypercore_testnet:purr&to=solana_testnet:sol&from_amount=10000000000000000000&indicative=false' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": [
{
"source": {
"asset": "hypercore_testnet:purr",
"amount": "10000000000000000000",
"display": "10.000000000000000000",
"value": "10.00"
},
"destination": {
"asset": "solana_testnet:sol",
"amount": "1500000000",
"display": "1.500000000",
"value": "9.97"
},
"solver_id": "0x9dd9c2d208b07bf9a4ef9ca311f36d7185749635",
"estimated_time": 60,
"slippage": 50,
"fee": 30,
"fixed_fee": "0.0"
}
]
}
2
Submit Order
Once a quote is received, submit the order:
Use
amount and asset from the quote response. Use your wallet addresses for owner. The owner for the source must be your HyperEVM address.curl --location 'https://testnet.api.garden.finance/v2/orders' \
--header 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
--header 'Content-Type: application/json' \
--data '{
"source": {
"asset": "hypercore_testnet:purr",
"owner": "0xYourHyperEVMAddress",
"amount": "10000000000000000000"
},
"destination": {
"asset": "solana_testnet:sol",
"owner": "YourSolanaAddress",
"amount": "1500000000"
}
}'
Response
{
"status": "Ok",
"result": {
"order_id": "c4d3ee14603bb46eef84062697cbf9512a3b4c5d",
"approval_transaction": null,
"initiate_transaction": {
"to": "0x...",
"value": "0x0",
"data": "0x97ffc7ae...",
"gas_limit": "0x493e0",
"chain_id": 998
},
"typed_data": {
"domain": {
"name": "HTLC",
"version": "3",
"chainId": "0x3e6",
"verifyingContract": "0x..."
},
"primaryType": "Initiate",
"types": { "..." },
"message": {
"redeemer": "0x5f3a295d23bff9de6e09fe0a88f4f08e15f4c59c",
"timelock": "0x15180",
"amount": "0x989680",
"secretHash": "0xe63a6d36..."
}
},
"core_to_evm_transfer": {
"to": "0x3333333333333333333333333333333333333333",
"value": "0x0",
"data": "0x17938e13...",
"gas_limit": "0x186a0",
"chain_id": 998
}
}
}
For HyperCore → X swaps, the response includes a
core_to_evm_transfer field. This is a pre-built transaction you must submit on HyperEVM before initiating the HTLC — it calls the CoreWriter precompile to move your PURR from your HyperCore spot account to HyperEVM. Funds become available in the next block.3
Bridge and Initiate
1. Bridge to HyperEVM
Submit this on HyperEVM (chain ID998 on testnet) to move your PURR from HyperCore spot to HyperEVM:await window.ethereum.request({
method: 'eth_sendTransaction',
params: [response.result.core_to_evm_transfer]
});
2. Initiate the swap
Lock the funds in the swap contract:- Submit transaction
- Gasless submission
await window.ethereum.request({
method: 'eth_sendTransaction',
params: [response.result.initiate_transaction]
});
// Sign the EIP-712 typed data off-chain
const signature = await window.ethereum.request({
method: 'eth_signTypedData_v4',
params: [userAddress, JSON.stringify(response.result.typed_data)]
});
// Submit the signature — the solver initiates on your behalf
await fetch(`https://testnet.api.garden.finance/v2/orders/${response.result.order_id}?action=initiate`, {
method: 'PATCH',
headers: {
'garden-app-id': 'f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796',
'Content-Type': 'application/json'
},
body: JSON.stringify({ signature })
});
4
Check Order Status
Check the order status using the The swap is complete once the
order_id from the response.curl -X 'GET' \
'https://testnet.api.garden.finance/v2/orders/c4d3ee14603bb46eef84062697cbf9512a3b4c5d' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
order.destination_swap.redeem_tx_hash field is populated.Refund path: If the swap expires before the solver fulfills it, calling
refund() on the HyperEVM HTLC will route your PURR back directly to your HyperCore spot account via the CoreWriter precompile — the same mechanism as settlement. No manual bridging back to HyperCore is required.1
Get Quote
Let’s get a quote to trade 3 Sui on Sui Testnet to BTC on Bitcoin Testnet4.
curl -X 'GET' 'https://testnet.api.garden.finance/v2/quote?from=sui_testnet:sui&to=bitcoin_testnet:btc&from_amount=3000000000' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": [
{
"source": {
"asset": "sui_testnet:sui",
"amount": "3000000000",
"display": "3.00000000",
"value": "9.9997"
},
"destination": {
"asset": "bitcoin_testnet:btc",
"amount": "9079",
"display": "0.00009079",
"value": "9.9697"
},
"solver_id": "0x9dd9c2d208b07bf9a4ef9ca311f36d7185749635",
"estimated_time": 20,
"slippage": 50,
"fee": 30,
"fixed_fee": "0.0"
}
]
}
2
Submit Order
Once a quote is received, we can submit the order:Then deposit the funds:
Use
amount and asset from the quote response. Use your wallet addresses for owner.curl --location 'https://testnet.api.garden.finance/v2/orders' \
--header 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
--header 'Content-Type: application/json' \
--data '{
"source": {
"asset": "sui_testnet:sui",
"owner": "0x79a1582388c16d0ab85904f320eb0527481391a9b9ab4b2ab46adc4c2564f9d0",
"amount": "3000000000"
},
"destination": {
"asset": "bitcoin_testnet:btc",
"owner": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"amount": "9079"
}
}'
Response
{
"status": "Ok",
"result": {
"order_id": "e7a2d8b8dbf8d1e315c17e40cd9287410ea9449258f806a1833b7f9ad68527f5",
"ptb_bytes": [0,8,0,8,0,94,208,178,0,0,0,0,1,1,92,67,135,21,183,220,192,45,18,171,146,68,145,83,161,229,173,226,48,22,32,213,191,96,170,116,143,0,103,38,211,105,76,48,204,31,0,0,0,0,1,0,32,121,161,88,35,136,193,109,10,184,89,4,243,32,235,5,39,72,19,145,169,185,171,75,42,180,106,220,76,37,100,249,208,0,32,63,109,158,7,253,76,218,187,170,112,151,193,158,207,101,88,9,200,147,169,207,227,244,24,195,255,188,4,37,13,59,76,0,33,32,57,81,42,177,166,145,123,61,75,78,219,100,208,167,124,32,76,159,215,52,146,144,167,63,206,85,74,183,15,149,211,219,0,32,0,92,38,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,1,0,0,0,0,0,0,0,0,2,2,0,1,1,0,0,0,153,134,91,3,221,27,192,61,10,106,128,92,69,78,162,87,196,100,247,171,204,202,233,205,75,98,27,145,231,202,4,222,10,65,116,111,109,105,99,83,119,97,112,8,105,110,105,116,105,97,116,101,1,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,115,117,105,3,83,85,73,0,9,1,1,0,1,2,0,1,3,0,1,4,0,1,0,0,1,5,0,1,6,0,2,0,0,1,7,0]
}
}
import { SuiClient, getFullnodeUrl } from "@mysten/sui/client";
import { Transaction } from "@mysten/sui/transactions";
import { Ed25519Keypair } from "@mysten/sui/keypairs/ed25519";
const client = new SuiClient({ url: getFullnodeUrl('testnet') });
const gasPrice = await client.getReferenceGasPrice();
const estimatedGasBudget = 10000000; // 10M gas units as a conservative estimate
let transaction = Transaction.fromKind(new Uint8Array(ptb_bytes)) // ptb_bytes are the Programmable Transaction Bytes returned from the create order response
transaction.setSender(sender);
transaction.setGasPrice(gasPrice);
transaction.setGasBudget(estimatedGasBudget);
const suiWallet = Ed25519Keypair.fromSecretKey("[private-key]");
try {
const result = await client.signAndExecuteTransaction({
transaction: transaction,
signer: suiWallet,
options: {
showEffects: true,
},
});
} catch (error) {
console.error('Transaction execution failed:', error);
}
3
Check Order Status
Check the order status using the
order_id from the response.curl -X 'GET' \
'https://testnet.api.garden.finance/v2/orders/e7a2d8b8dbf8d1e315c17e40cd9287410ea9449258f806a1833b7f9ad68527f5' \
-H 'garden-app-id: f242ea49332293424c96c562a6ef575a819908c878134dcb4fce424dc84ec796' \
-H 'accept: application/json'
Response
{
"status": "Ok",
"result": {
"created_at": "2025-09-01T09:33:10.050305Z",
"source_swap": {
"created_at": "2025-09-01T09:33:10.050305Z",
"swap_id": "1220ade677e925f325fbcef8ded85efd4d416852015678634dd471bfd77e8f2f",
"chain": "sui_testnet",
"asset": "sui_testnet:sui",
"initiator": "0x79a1582388c16d0ab85904f320eb0527481391a9b9ab4b2ab46adc4c2564f9d0",
"redeemer": "0x3f6d9e07fd4cdabbaa7097c19ecf655809c893a9cfe3f418c3ffbc04250d3b4c",
"timelock": 86400000,
"filled_amount": "0",
"asset_price": 3.3332479255988647,
"amount": "3000000000",
"secret_hash": "39512ab1a6917b3d4b4edb64d0a77c204c9fd7349290a73fce554ab70f95d3db",
"secret": "",
"initiate_tx_hash": "",
"redeem_tx_hash": "",
"refund_tx_hash": "",
"initiate_block_number": "0",
"redeem_block_number": "0",
"refund_block_number": "0",
"required_confirmations": 0,
"current_confirmations": 0,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"destination_swap": {
"created_at": "2025-09-01T09:33:10.050305Z",
"swap_id": "tb1p77xn22avz3qyu9tkm00q4rfuyz5c2960y33vde7z58xwh0zymv3sk879l4",
"chain": "bitcoin_testnet",
"asset": "bitcoin_testnet:btc",
"initiator": "460f2e8ff81fc4e0a8e6ce7796704e3829e3e3eedb8db9390bdc51f4f04cf0a6",
"redeemer": "tb1p4pr78swsn60y4ushe05v28mqpqppxxkfkxu2wun5jw6duc8unj3sjrh4gd",
"delegate": "f5a577508b4b55e65d693f7c772eab767b2e22626e8a76b654b6142abc3ffd5e",
"timelock": 12,
"filled_amount": "0",
"asset_price": 109799.0308368164,
"amount": "9079",
"secret_hash": "39512ab1a6917b3d4b4edb64d0a77c204c9fd7349290a73fce554ab70f95d3db",
"secret": "",
"initiate_tx_hash": "",
"redeem_tx_hash": "",
"refund_tx_hash": "",
"initiate_block_number": "0",
"redeem_block_number": "0",
"refund_block_number": "0",
"required_confirmations": 0,
"current_confirmations": 0,
"initiate_timestamp": null,
"redeem_timestamp": null,
"refund_timestamp": null
},
"nonce": "9973478672661146798",
"order_id": "e7a2d8b8dbf8d1e315c17e40cd9287410ea9449258f806a1833b7f9ad68527f5",
"affiliate_fees": [],
"integrator": "DocsTesting",
"version": "v2",
"solver_id": "0x90eb912279ee8a3c56f784a44dedffae4487524d"
}
}
The swap is complete once the
order.destination_swap.redeem_tx_hash field is populated.Congratulations, you have successfully completed a cross-chain swap!