POST

accounts

{account_id}

plan

loop-long

Plan Loop Long

curl --request POST \
  --url https://api.example.com/accounts/{account_id}/plan/loop-long

const options = {method: 'POST'};

fetch('https://api.example.com/accounts/{account_id}/plan/loop-long', 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.example.com/accounts/{account_id}/plan/loop-long",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.example.com/accounts/{account_id}/plan/loop-long"

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

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

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

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.example.com/accounts/{account_id}/plan/loop-long")

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

request = Net::HTTP::Post.new(url)

response = http.request(request)
puts response.read_body

Plan Loop Long

Creates a plan to open or increase a leveraged long position on a Morpho market. Looping borrows the backing asset, swaps it for the exposure asset, and supplies it as collateral — repeatedly — to achieve leverage. Returns a plan ID and an EIP-712 digest that must be signed to authorize execution.

Request

POST /accounts/:account_id/plan/loop-long

Path parameters

Parameter	Type	Description
`account_id`	string	The sub-account ID

Body parameters

Parameter	Type	Required	Description
`exposure_asset`	string	Yes	Asset to go long on (e.g., `"WETH"`)
`backing_asset`	string	Yes	Asset used as loan currency (e.g., `"USDC"`)
`market_id`	string	Yes	Morpho market ID (0x-prefixed 32-byte hex)
`is_increase`	boolean	Yes	`true` to open/increase position, `false` to adjust existing
`exposure_amount`	string	Yes	Target exposure amount in the asset’s smallest unit
`max_swap_backing_amount`	string	Yes	Maximum backing asset to use in swaps
`max_provided_backing_amount`	string	Yes	Maximum backing asset to supply as collateral
`pool_fee`	integer	Yes	Uniswap pool fee tier (e.g., `500`, `3000`, `10000`)
`network`	string	Yes	Target network (e.g., `"base"`, `"mainnet"`). Funds on other chains are bridged automatically.

Examples

curl -X POST https://prime-api.legend.xyz/accounts/acc_2o0yiljtp378/plan/loop-long \
  -H "Authorization: Bearer $LEGEND_QUERY_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "exposure_asset": "WETH",
    "backing_asset": "USDC",
    "market_id": "0xb323495f7e4148be5643a4ea4a8221eef163e4bccfdedc2a6f4696baacbc86cc",
    "is_increase": true,
    "exposure_amount": "1000000000000000000",
    "max_swap_backing_amount": "5000000000",
    "max_provided_backing_amount": "1000000000",
    "pool_fee": 500,
    "network": "base"
  }'

const plan = await client.plan.loopLong("acc_2o0yiljtp378", {
  exposureAsset: "WETH",
  backingAsset: "USDC",
  marketId: "0xb323495f7e4148be5643a4ea4a8221eef163e4bccfdedc2a6f4696baacbc86cc",
  isIncrease: true,
  exposureAmount: "1000000000000000000",
  maxSwapBackingAmount: "5000000000",
  maxProvidedBackingAmount: "1000000000",
  poolFee: 500,
  network: "base",
});

plan = await client.plan.loop_long(
    "acc_2o0yiljtp378",
    exposure_asset="WETH",
    backing_asset="USDC",
    market_id="0xb323495f7e4148be5643a4ea4a8221eef163e4bccfdedc2a6f4696baacbc86cc",
    is_increase=True,
    exposure_amount="1000000000000000000",
    max_swap_backing_amount="5000000000",
    max_provided_backing_amount="1000000000",
    pool_fee=500,
    network="base",
)

use legend_client::LoopLongParams;

let plan = client.plan.loop_long("acc_2o0yiljtp378", &LoopLongParams {
    exposure_asset: "WETH".into(),
    backing_asset: "USDC".into(),
    market_id: "0xb323495f7e4148be5643a4ea4a8221eef163e4bccfdedc2a6f4696baacbc86cc".into(),
    is_increase: true,
    exposure_amount: "1000000000000000000".into(),
    max_swap_backing_amount: "5000000000".into(),
    max_provided_backing_amount: "1000000000".into(),
    pool_fee: 500,
    network: "base".into(),
}).await?;

Response (201 Created)

{
  "plan_id": "pln_71mcui082png",
  "details": {
    "quark_operation_actions": [...],
    "eip712_data": {
      "digest": "0x8a3f...b7c2",
      "domain_separator": "0x...",
      "hash_struct": "0x..."
    }
  },
  "expires_at": "2025-06-15T10:32:00Z"
}

Response fields

Field	Type	Description
`plan_id`	string	Unique identifier for this plan (`pln_` prefix)
`details`	object	Transaction details including EIP-712 signing data
`details.eip712_data.digest`	string	The hash to sign with the account’s signer key
`expires_at`	string	ISO 8601 timestamp — plan must be executed before this time

Errors

Status	Code	Description
400	`invalid_params`	Missing required parameters or invalid market ID
400	`plan_failed`	Could not generate a valid plan
400	`no_wallet`	Account has no wallets
408	`timeout`	Folio computation timed out

Notes

Plans expire after 2 minutes. Sign and execute via Execute Plan before expiry.
The market_id must be a valid Morpho market ID (0x-prefixed 32-byte hex).
Common pool_fee values: 500 (0.05%), 3000 (0.3%), 10000 (1%). These correspond to Uniswap V3 fee tiers.
Use Plan Unloop Long to close or reduce the position.

Plan Unloop LongCreate a plan to close or reduce a leveraged long position

Plan Loop Long

curl --request POST \
  --url https://api.example.com/accounts/{account_id}/plan/loop-long

const options = {method: 'POST'};

fetch('https://api.example.com/accounts/{account_id}/plan/loop-long', 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.example.com/accounts/{account_id}/plan/loop-long",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.example.com/accounts/{account_id}/plan/loop-long"

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

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

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

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.example.com/accounts/{account_id}/plan/loop-long")

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

request = Net::HTTP::Post.new(url)

response = http.request(request)
puts response.read_body

Getting Started

Guides

Concepts

Accounts

Portfolio

Plans

Activities & Events

Reference Data

SDKs

Agent Integration

MCP Server

Agent Guides

Plan Loop Long

Plan Loop Long

Request

Path parameters

Body parameters

Examples

Response fields

Errors

Notes

​Plan Loop Long

​Request

​Path parameters

​Body parameters

​Examples

​Response fields

​Errors

​Notes

Plan Loop Long

Request

Path parameters

Body parameters

Examples

Response fields

Errors

Notes