# Connectors

A connector is a signing backend: it determines how an operation runs and which custodian holds your account keys. Each is constructed and authenticated on its own, then passed to the client constructed by `simpleXRPL` in a `signers` array. `simpleXRPL` supports these connectors:

- [Local](/docs/simplexrpl/references/connectors/local)
- [External](/docs/simplexrpl/references/connectors/external)
- [Ripple Custody](/docs/simplexrpl/references/connectors/ripple-custody)
- [Palisade](/docs/simplexrpl/references/connectors/palisade)


Every connector implements the `Custodian` interface. Once constructed, it exposes these fields and methods:

## Fields

| Field | Type | Description |
|  --- | --- | --- |
| `kind` | [`CustodianKind`](/docs/simplexrpl/references/types#custodiankind) | The backend the connector adapts: `local`, `ripple-custody`, `palisade-custody`, or `external`. |
| `primary` | [`AccountRef`](/docs/simplexrpl/references/types#accountref) | The connector's primary account reference. Used when a vertical operation runs without an explicit account. |
| `primary.address` | `string` | The primary account's XRPL r-address. |
| `primary.custodianRef` | [`CustodianRef`](/docs/simplexrpl/references/types#custodianref) | *(Optional)* The connector's opaque native id for the account. |


## Methods

### listAccounts()

List the accounts the connector holds.

#### Signature


```ts
connector.listAccounts(): Promise<Account[]>
```

#### Parameters

`listAccounts` takes no arguments.

#### Returns

Resolves to an array of [Account](/docs/simplexrpl/references/types#account) records the connector discovered and can sign for.

#### Example


```ts
const accounts = await connector.listAccounts()

console.log(accounts.map((account) => account.address))
```