Close a trove

GET 
/v1/actions/liquity/close

Close a trove: burns the FULL live entireDebt (incl. per-block interest accrual — keep a small stable buffer above any quote) from the sender and returns all collateral plus the gas compensation. Equivalent to lending/repay with isAll=true.

Liquity V2 family is a pooled CDP — one branch per collateral, troves = sub-accounts (troveId, the sub-account id from user data), user-set adjustable interest rates, and a per-branch Stability Pool as the stable-token earn side. Deployments: LIQUITY_V2 (Ethereum) + friendly forks (USDAF, FELIX, NERITE, QUILL, ENOSYS_LOANS, SONETA, EBISU) — all share this surface; per-fork parameters (min debt, rate bounds, gas compensation) come from metadata.

Standard lending actions cover the day-to-day ops for a <DEPLOYMENT>_<chainId>_<COLL_INDEX> market key:

• stable-token deposit/withdraw → Stability Pool (earn; isAll withdraw uses the protocol sentinel)
• collateral deposit/withdraw → addColl/withdrawColl (pass troveId)
• borrow → withdrawBold (pass troveId; upfront-fee guard quoted automatically, override with maxUpfrontFee)
• repay → repayBold clamped to entireDebt − minDebt; isAll=true routes to closeTrove (burns the full live debt from the wallet, returns collateral + the WETH gas compensation)

The endpoints in this section handle the trove lifecycle ops that need more than one amount or no amount at all. Fees to know: the upfront borrowing fee (≈7 days of average branch interest on any debt increase) and the premature rate-adjustment fee (same formula on the WHOLE debt when changing the rate within the cooldown). Repaying itself is always free.

Plain-text reference — GET /v1/actions/liquity/close

Parameters

Parameter	In	Type	Required	Description
chainId	query	string	yes	Chain id See the ChainId schema for the full set of supported chains.
lender	query	string	yes	Per-branch key, e.g. LIQUITY_V2_1_0 See the LenderId schema for the full set of accepted values.
troveId	query	string	yes	Trove id (sub-account id from user data)

Response 200

Field	Type	Description
success	True
data	object	Informational data (quotes, simulation results, etc.)
actions	object	Transaction calldata and approvals. Null for quote-only responses (no account provided).
actions.transactions	object[]	Pre-trade setup transactions (e.g. e-mode switch, collateral enable). Execute these before the main swap. Empty when no setup is needed.
actions.transactions[].to	string	Target contract address
actions.transactions[].data	string	Encoded calldata
actions.transactions[].value	string	ETH value to send with the transaction
actions.transactions[].description	string	Human-readable label. For alternatives, this is the aggregator name (e.g. "Paraswap"). For transactions, describes the setup action (e.g. "Switch e-mode to 1").
actions.alternatives	object[]	DEX aggregator swap transactions sorted by best output (descending). Each entry's description is the aggregator name. The client should pick one to execute. Present on loop action endpoints.
actions.alternatives[].to	string	Target contract address
actions.alternatives[].data	string	Encoded calldata
actions.alternatives[].value	string	ETH value to send with the transaction
actions.alternatives[].description	string	Human-readable label. For alternatives, this is the aggregator name (e.g. "Paraswap"). For transactions, describes the setup action (e.g. "Switch e-mode to 1").
actions.permissions	object[]	Approval/delegation transactions that must execute before both transactions and alternatives. Includes ERC20 allowances (targeting the composer contract) and lender borrow/withdrawal delegations (targeting the lending protocol contract directly). Filtered against on-chain state so only missing approvals are returned. Null when no approvals are needed.
actions.permissions[].to	string	Target contract address
actions.permissions[].data	string	Encoded calldata
actions.permissions[].value	string	ETH value
actions.permissions[].description	string	Human-readable description of the approval (e.g. "Approve borrow for AAVE_V3", "Approve ERC20")
actions.permissions[].spender	string	ERC-20 approve spender (x-chain permissions). Match it against the selected quote's approvalTarget — several bridges can share one spender, so do not match by description.

Example response

{
  "success": true,
  "data": {},
  "actions": {
    "transactions": [
      {
        "to": "0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2",
        "data": "0x617ba037000000000000000000000000c02aaa39b2",
        "value": "0",
        "description": "string"
      }
    ],
    "alternatives": [
      {
        "to": "0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2",
        "data": "0x617ba037000000000000000000000000c02aaa39b2",
        "value": "0",
        "description": "string"
      }
    ],
    "permissions": [
      {
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "data": "0x617ba037000000000000000000000000c02aaa39b2",
        "value": "0",
        "description": "string",
        "spender": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
      }
    ]
  }
}

Request

Responses

200

Close-trove transaction

400

Validation error

429

Rate limited. Unauthenticated callers share a per-IP budget; send an x-api-key header to lift it. Retry with exponential backoff.

500

Unexpected server error. Safe to retry with backoff.

502

An upstream data source or protocol origin failed (error.code is ORIGIN_FAILED). error.details carries the per-origin status. This is also what a missing or malformed required parameter currently returns, rather than a 400.