# Close a trove

Endpoint reference for the 1delta API. Index: https://docs.1delta.io/llms.txt · every endpoint: https://docs.1delta.io/llms-full.txt

---

### GET /v1/actions/liquity/close

- operationId: `liquity-close`
- docs: https://docs.1delta.io/1delta-api/liquity-close/
- markdown: https://docs.1delta.io/1delta-api/liquity-close.md
- tags: Actions › Liquity

Close a trove

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.

**Parameters**

| Name | 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`** — Close-trove transaction

| 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**

```json
{
  "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"
      }
    ]
  }
}
```

**Response `400`** — Validation error

**Response `429`** — Rate limited. Unauthenticated callers share a per-IP budget; send an `x-api-key` header to lift it. Retry with exponential backoff.

**Response `500`** — Unexpected server error. Safe to retry with backoff.

**Response `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.