> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blockrush.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

| Endpoint Name   | Method | Description                                                                                            |
| --------------- | ------ | ------------------------------------------------------------------------------------------------------ |
| sendTransaction | POST   | Native Solana JSON-RPC sendTransaction method                                                          |
| submitBatch     | POST   | Non-atomic batch submission of multiple signed transactions (each transaction processed independently) |
| sendBundle      | POST   | Atomic bundle submission of multiple signed transactions (all fail if any transaction fails)           |

## Request Body

```json theme={null}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "<method_name>",
  "params": [
    "<param1>",
    "<param2>",
    ...
  ]
}
```

## Response Body

```json theme={null}
{
  "jsonrpc": "2.0",
  "result": "...",
  "id": 1
}
```

## API Comparison and Recommendations

| Requirement                                                  | Recommended Endpoint | Description                                       |
| ------------------------------------------------------------ | -------------------- | ------------------------------------------------- |
| Single transaction direct send                               | sendTransaction      | Simplest path, returns transaction signature      |
| Multiple transactions, high throughput, mutually independent | submitBatch          | Non-atomic, failure of one does not affect others |
| Multiple transactions, require strong consistency            | sendBundle           | All fail if any fails                             |
| Health check and operations                                  | health               | Returns ok                                        |

## Best Practices

* Choose the geographically closest endpoint to reduce latency
* For batch submissions, balance between atomicity (sendBundle) and throughput (submitBatch) according to requirements