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POST
/
v2
/
credit
/
loop
Python (SDK)
from compass_api_sdk import CompassAPI, models


with CompassAPI(
    api_key_auth="<YOUR_API_KEY_HERE>",
) as compass_api:

    res = compass_api.credit.credit_loop(owner="0x5e5b00ed886A6879C2B934612D2312975427fcAf", chain=models.Chain.ETHEREUM, collateral_token="WETH", borrow_token="USDC", initial_collateral_amount=1, multiplier=2, loan_to_value=70, protocol=models.CreditProtocol.AAVE, sub_account_id=0, max_slippage_percent=0.5, gas_sponsorship=False)

    # Handle response
    print(res)
import { CompassApiSDK } from "@compass-labs/api-sdk";

const compassApiSDK = new CompassApiSDK({
  apiKeyAuth: "<YOUR_API_KEY_HERE>",
});

async function run() {
  const result = await compassApiSDK.credit.creditLoop({
    owner: "0x5e5b00ed886A6879C2B934612D2312975427fcAf",
    chain: "ethereum",
    protocol: "AAVE",
    collateralToken: "WETH",
    borrowToken: "USDC",
    initialCollateralAmount: 1,
    multiplier: 2,
    loanToValue: 70,
    maxSlippagePercent: 0.5,
    gasSponsorship: false,
  });

  console.log(result);
}

run();
curl --request POST \
  --url https://api.compasslabs.ai/v2/credit/loop \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "owner": "0x5e5b00ed886A6879C2B934612D2312975427fcAf",
  "chain": "ethereum",
  "protocol": "AAVE",
  "collateral_token": "WETH",
  "borrow_token": "USDC",
  "initial_collateral_amount": 1,
  "multiplier": 2,
  "loan_to_value": 70,
  "max_slippage_percent": 0.5,
  "gas_sponsorship": false
}
'
const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    owner: '0x5e5b00ed886A6879C2B934612D2312975427fcAf',
    chain: 'ethereum',
    protocol: 'AAVE',
    collateral_token: 'WETH',
    borrow_token: 'USDC',
    initial_collateral_amount: 1,
    multiplier: 2,
    loan_to_value: 70,
    max_slippage_percent: 0.5,
    gas_sponsorship: false
  })
};

fetch('https://api.compasslabs.ai/v2/credit/loop', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.compasslabs.ai/v2/credit/loop",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'owner' => '0x5e5b00ed886A6879C2B934612D2312975427fcAf',
    'chain' => 'ethereum',
    'protocol' => 'AAVE',
    'collateral_token' => 'WETH',
    'borrow_token' => 'USDC',
    'initial_collateral_amount' => 1,
    'multiplier' => 2,
    'loan_to_value' => 70,
    'max_slippage_percent' => 0.5,
    'gas_sponsorship' => false
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.compasslabs.ai/v2/credit/loop"

	payload := strings.NewReader("{\n  \"owner\": \"0x5e5b00ed886A6879C2B934612D2312975427fcAf\",\n  \"chain\": \"ethereum\",\n  \"protocol\": \"AAVE\",\n  \"collateral_token\": \"WETH\",\n  \"borrow_token\": \"USDC\",\n  \"initial_collateral_amount\": 1,\n  \"multiplier\": 2,\n  \"loan_to_value\": 70,\n  \"max_slippage_percent\": 0.5,\n  \"gas_sponsorship\": false\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.post("https://api.compasslabs.ai/v2/credit/loop")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"owner\": \"0x5e5b00ed886A6879C2B934612D2312975427fcAf\",\n  \"chain\": \"ethereum\",\n  \"protocol\": \"AAVE\",\n  \"collateral_token\": \"WETH\",\n  \"borrow_token\": \"USDC\",\n  \"initial_collateral_amount\": 1,\n  \"multiplier\": 2,\n  \"loan_to_value\": 70,\n  \"max_slippage_percent\": 0.5,\n  \"gas_sponsorship\": false\n}")
  .asString();
require 'uri'
require 'net/http'

url = URI("https://api.compasslabs.ai/v2/credit/loop")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"owner\": \"0x5e5b00ed886A6879C2B934612D2312975427fcAf\",\n  \"chain\": \"ethereum\",\n  \"protocol\": \"AAVE\",\n  \"collateral_token\": \"WETH\",\n  \"borrow_token\": \"USDC\",\n  \"initial_collateral_amount\": 1,\n  \"multiplier\": 2,\n  \"loan_to_value\": 70,\n  \"max_slippage_percent\": 0.5,\n  \"gas_sponsorship\": false\n}"

response = http.request(request)
puts response.read_body
{
  "preview": {
    "iterations": 123,
    "total_collateral_supplied": "<string>",
    "total_borrowed": "<string>",
    "achieved_multiplier": "<string>",
    "projected_ltv": "<string>",
    "projected_health_factor": "<string>",
    "estimated_max_dust": "<string>",
    "legs": []
  },
  "transaction": {
    "chainId": "0x2105",
    "data": "0x1688f0b900000000000000000000000029fcb43b46531bca003ddc8fcb67ffe91900c762000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000675f4a3d",
    "from": "0x4A83b4413CF41C3244027e1590E35a0F48403F0c",
    "gas": "0x7a120",
    "maxFeePerGas": "0x59682f00",
    "maxPriorityFeePerGas": "0x3b9aca00",
    "nonce": "0x5",
    "to": "0x4e1DCf7AD4e460CfD30791CCC4F9c8a4f820ec67",
    "value": "0x0"
  },
  "eip_712": {
    "domain": {
      "chainId": 8453,
      "verifyingContract": "0x6B90E8B4E3E971E74C1A47a3a20976377E2dB4b1"
    },
    "message": {
      "baseGas": "0",
      "data": "0x8d80ff0a0000000000000000000000000000000000000000000000000000000000000020",
      "gasPrice": "0",
      "gasToken": "0x0000000000000000000000000000000000000000",
      "nonce": "7",
      "operation": 1,
      "refundReceiver": "0x0000000000000000000000000000000000000000",
      "safeTxGas": "0",
      "to": "0x93C23AAE4793C14D6DF35D2A2A2234204e1559dA",
      "value": "0"
    },
    "primaryType": "SafeTx",
    "types": {
      "EIP712Domain": [
        {
          "name": "chainId",
          "type": "uint256"
        },
        {
          "name": "verifyingContract",
          "type": "address"
        }
      ],
      "SafeTx": [
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "value",
          "type": "uint256"
        },
        {
          "name": "data",
          "type": "bytes"
        },
        {
          "name": "operation",
          "type": "uint8"
        },
        {
          "name": "safeTxGas",
          "type": "uint256"
        },
        {
          "name": "baseGas",
          "type": "uint256"
        },
        {
          "name": "gasPrice",
          "type": "uint256"
        },
        {
          "name": "gasToken",
          "type": "address"
        },
        {
          "name": "refundReceiver",
          "type": "address"
        },
        {
          "name": "nonce",
          "type": "uint256"
        }
      ]
    }
  }
}
{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}

Authorizations

​
x-api-key
string
header
required

Your Compass API Key. Get your key here.

Body

application/json

Open a leveraged loop: repeatedly supply collateral, borrow, and swap the borrow back to collateral — all in ONE atomic transaction from the Credit Account.

​
owner
string
default:0x5e5b00ed886A6879C2B934612D2312975427fcAf
required

The address that owns the Credit Account.

Example:

"0x5e5b00ed886A6879C2B934612D2312975427fcAf"

​
chain
enum<string>
default:ethereum
required

Blockchain network.

Available options:
base,
ethereum,
arbitrum,
hyperevm,
tempo,
bsc
Example:

"ethereum"

​
collateral_token
string
default:WETH
required

Token supplied as collateral each iteration. Must already be in the Credit Account for the initial amount. For MORPHO it must be the market's collateral token.

Examples:

"wstETH"

"WETH"

​
borrow_token
string
default:USDC
required

Token borrowed each iteration and swapped back to the collateral token. For MORPHO it must be the market's loan token.

Examples:

"WETH"

"USDC"

​
initial_collateral_amount
default:1
required

Collateral (in token units) already held in the Credit Account to seed the loop.

Required range: x > 0
Example:

1.5

​
multiplier
default:2
required

Target leverage: total collateral exposure = multiplier × initial_collateral_amount. Must be achievable at the requested loan_to_value (max ≈ 0.9 / (1 − LTV)).

Required range: x > 1
Example:

2

​
loan_to_value
default:70
required

Per-iteration borrow LTV in percent. Must not exceed the protocol's maximum for the market (Aave reserve/e-mode LTV; Morpho LLTV with a safety margin); borrows are sized slightly inside the requested value so no leg sits on the protocol's revert boundary.

Required range: 0 < x <= 100
Example:

70

​
protocol
enum<string>
default:AAVE

Lending protocol to loop into: AAVE, MORPHO, or EULER.

Available options:
AAVE,
EULER,
MORPHO
Example:

"AAVE"

​
market_id
string | null

Morpho only: the bytes32 market id (from /v2/credit/morpho_markets). Required when protocol=MORPHO.

​
collateral_vault
string | null

Euler only: the EVK vault address collateral is supplied to (from /v2/credit/euler_markets). Required when protocol=EULER.

​
borrow_vault
string | null

Euler only: the EVK vault address borrowed from (the sub-account's controller). Required when protocol=EULER.

​
sub_account_id
integer
default:0

Euler only: the EVC sub-account (0-255) holding this isolated looped position. 0 is the Credit Account itself.

Required range: 0 <= x <= 255
​
max_slippage_percent
default:0.5

Per-swap slippage tolerance in percent. Loop dust is bounded by this per iteration, so tighter slippage means less dust.

Required range: 0 < x <= 10
Example:

0.3

​
emode_category
integer | null

Aave only: e-mode category to enable before looping (higher LTV for correlated pairs, e.g. ETH-correlated).

Required range: x >= 0
​
gas_sponsorship
boolean
default:false

If true, returns EIP-712 typed data for gas-sponsored execution instead of an unsigned transaction.

Example:

false

Response

Successful Response

The atomic loop transaction plus its guaranteed-floor preview.

​
preview
CreditLoopPreview · object
required

Projected end state, computed on guaranteed swap floors.

​
transaction
UnsignedTransaction · object | null

Unsigned transaction for direct execution by the owner. Present when gas_sponsorship=false.

Example:
{
  "chainId": "0x2105",
  "data": "0x1688f0b900000000000000000000000029fcb43b46531bca003ddc8fcb67ffe91900c762000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000675f4a3d",
  "from": "0x4A83b4413CF41C3244027e1590E35a0F48403F0c",
  "gas": "0x7a120",
  "maxFeePerGas": "0x59682f00",
  "maxPriorityFeePerGas": "0x3b9aca00",
  "nonce": "0x5",
  "to": "0x4e1DCf7AD4e460CfD30791CCC4F9c8a4f820ec67",
  "value": "0x0"
}
​
eip_712
BatchedSafeOperationsResponse · object | null

EIP-712 typed data for gas-sponsored execution. Present when gas_sponsorship=true.

Example:
{
  "domain": {
    "chainId": 8453,
    "verifyingContract": "0x6B90E8B4E3E971E74C1A47a3a20976377E2dB4b1"
  },
  "message": {
    "baseGas": "0",
    "data": "0x8d80ff0a0000000000000000000000000000000000000000000000000000000000000020",
    "gasPrice": "0",
    "gasToken": "0x0000000000000000000000000000000000000000",
    "nonce": "7",
    "operation": 1,
    "refundReceiver": "0x0000000000000000000000000000000000000000",
    "safeTxGas": "0",
    "to": "0x93C23AAE4793C14D6DF35D2A2A2234204e1559dA",
    "value": "0"
  },
  "primaryType": "SafeTx",
  "types": {
    "EIP712Domain": [
      { "name": "chainId", "type": "uint256" },
      {
        "name": "verifyingContract",
        "type": "address"
      }
    ],
    "SafeTx": [
      { "name": "to", "type": "address" },
      { "name": "value", "type": "uint256" },
      { "name": "data", "type": "bytes" },
      { "name": "operation", "type": "uint8" },
      { "name": "safeTxGas", "type": "uint256" },
      { "name": "baseGas", "type": "uint256" },
      { "name": "gasPrice", "type": "uint256" },
      { "name": "gasToken", "type": "address" },
      {
        "name": "refundReceiver",
        "type": "address"
      },
      { "name": "nonce", "type": "uint256" }
    ]
  }
}