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POST
/
accounts
/
{account_id}
/
plan
/
unloop-long
Plan Unloop Long
curl --request POST \
  --url https://api.example.com/accounts/{account_id}/plan/unloop-long

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Plan Unloop Long

Creates a plan to close or reduce a leveraged long position on a Morpho market. Unlooping withdraws the exposure asset, swaps it for the backing asset, and repays the loan — repeatedly — to deleverage. Returns a plan ID and an EIP-712 digest that must be signed to authorize execution.

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Request

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

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Path parameters

ParameterTypeDescription
account_idstringThe sub-account ID

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Body parameters

ParameterTypeRequiredDescription
exposure_assetstringYesLong exposure asset (e.g., "WETH")
backing_assetstringYesLoan currency asset (e.g., "USDC")
market_idstringYesMorpho market ID (0x-prefixed 32-byte hex)
exposure_amountstringYesAmount of exposure to close in the asset’s smallest unit
backing_amount_to_exitstringYesTarget backing asset amount to withdraw after deleveraging
min_swap_backing_amountstringYesMinimum acceptable backing asset from swaps (slippage protection)
pool_feeintegerYesUniswap pool fee tier (e.g., 500, 3000, 10000)
networkstringYesNetwork name (e.g., "base", "mainnet")

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Examples

curl -X POST https://prime-api.legend.xyz/accounts/acc_2o0yiljtp378/plan/unloop-long \
  -H "Authorization: Bearer $LEGEND_QUERY_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "exposure_asset": "WETH",
    "backing_asset": "USDC",
    "market_id": "0xb323495f7e4148be5643a4ea4a8221eef163e4bccfdedc2a6f4696baacbc86cc",
    "exposure_amount": "1000000000000000000",
    "backing_amount_to_exit": "500000000",
    "min_swap_backing_amount": "490000000",
    "pool_fee": 500,
    "network": "base"
  }'
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"
}

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Response fields

FieldTypeDescription
plan_idstringUnique identifier for this plan (pln_ prefix)
detailsobjectTransaction details including EIP-712 signing data
details.eip712_data.digeststringThe hash to sign with the account’s signer key
expires_atstringISO 8601 timestamp — plan must be executed before this time

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Errors

StatusCodeDescription
400invalid_paramsMissing required parameters or invalid market ID
400plan_failedCould not generate a valid plan
400no_walletAccount has no wallets
408timeoutFolio computation timed out

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Notes

  • Plans expire after 2 minutes. Sign and execute via Execute Plan before expiry.
  • The market_id must match the one used when opening the position with Plan Loop Long.
  • Set min_swap_backing_amount to protect against slippage — the transaction will revert if swaps yield less than this amount.