BSC Private Transactions

Send BSC transaction with front-running protection automatically on server side.

BSC Mainnet

The bsc_private_tx endpoint allows users to send a single transaction to cloud-api, and cloud-api will propagate the transaction privately to the BDN accessible validators.

Note: endpoint is only supported by cloud-api.

We have implemented a new mechanism for landing transactions faster. To implement this: 1. Send a fee payment as an internal transaction to our new Smart Contract: 0x6374Ca2da5646C73Eb444aB99780495d61035f9b 2. Pass "mev_builders": ["all"] in your submission request payload

REQUEST

Method: bsc_private_tx

Method	DNS	Request Type
bsc_private_tx	api.blxrbdn.com	HTTP, HTTPS, WSS

Parameters

Parameter	Description	Instructions & Notes
transaction	Raw transactions bytes without 0x prefix.	Mandatory. Learn more about constructing the transaction here.
mev_builders	A list of MEV builders that should receive the transaction without delay.	[Optional, default: bloxroute builder] Possible MEV builders are: bloxroute: bloXroute internal builder all: all builders Other options: 48club, blockrazor, jetbldr, nodereal
backrunme_reward_address	String – valid BSC address specifying where backrun rewards should be shared.	Optional

Examples (Cloud API)

HTTPS POST

curl https://api.blxrbdn.com \
  -X POST \
  -H "Content-Type: application/json" \
  -H "Authorization: <YOUR-AUTHORIZATION-HEADER>" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "bsc_private_tx",
    "params": {
      "transaction": "f86b0184...e0b58219",
      "mev_builders": ["all"],
      "backrunme_reward_address": "0xYourRewardAddressHere"
    }
  }'

wscat

RESPONSE

Result Fields

Result Field	Description
tx_hash	Transaction hash

Examples

Cloud-API

{
    "jsonrpc": "2.0", 
    "id": "1", 
    "result": "0xffd59870844e5...bfa54a69"        
}   

Frontrunning Protection Rate Limit for BSC​

Plan	Request Rate Limit
Ultra	10 transactions every 1 second
Enterprise-Elite	5 transactions every 1 second
Enterprise	3 transactions every 1 second
Professional	1 transaction every 5 seconds
Introductory	1 transaction every 5 seconds