Overview - BlockRush Document

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "<method_name>",
  "params": [
    "<param1>",
    "<param2>",
    ...
  ]
}

{
  "jsonrpc": "2.0",
  "result": "...",
  "id": 1
}

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

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