# RPC Reference

All calls to the PFL relay must be in JSON-RPC format for compatibility and can be sent over HTTP or WebSocket.

## Endpoints:

**HTTP:**

```
https://polygon-rpc.fastlane.xyz/
```

**Websocket:**

```
wss://polygon-rpc.fastlane.xyz/ws
```

***

`pfl_sendRawTransactionConditional`

Submits a new conditional transaction. 

***

| Parameter           | Type            | Description                                                                                                                                                                              |
| ------------------- | --------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Encoded transaction | String          | The hexadecimal encoded transaction.                                                                                                                                                     |
| Options             | `OptionsAA4337` | Refer to [OptionsAA4337 type in the Bor GitHub repository](https://github.com/maticnetwork/bor/blob/v1.2.7/core/types/transaction_conditional.go#L115) for detailed parameter structure. |