Submit Transactions

Use this endpoint to send a single transaction on X Layer Mainnet using bloXroute’s Blockchain Distribution Network (BDN).

This Cloud API endpoint for sending transactions on X Layer Mainnet is available to all users, including those on the Introductory plan.

REQUEST

Method: blxr_tx

Parameters

Parameter	Description	Instructions & Notes
transaction	Raw transactions bytes without 0x prefix.	[Required] Learn more about constructing the transaction here.
blockchain_network	Blockchain network name.	[Required] Set to X-Layer-Mainnet.
backrunme_reward_address	Wallet address String to receive BackRunMe rewards to	[Optional] Transactions are automatically enrolled in Backrunning services, from which rewards are shared with the specified backrunme_reward_address.

Cloud-API

• WebSocket endpoint: wss://api.blxrbdn.com/ws

• HTTPS POST endpoint: https://api.blxrbdn.com

You may also send to IP-specific endpoints (e.g., wss://<IP>/ws). See Cloud-API IPs for more.

Sending transactions via WebSocket instead of HTTPS can lead to a latency improvement of up to 10ms.

Examples

wscat WS

wscat -c wss://api.blxrbdn.com/ws --header "Authorization: <YOUR-AUTHORIZATION-HEADER>"
> {"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params":
   {"transaction": "f86b0184...e0b58219", "blockchain_network": "X-Layer-Mainnet"}}
< ...

HTTPS POST

curl -X POST https://api.blxrbdn.com \
  -H "Authorization: <YOUR-AUTHORIZATION-HEADER>" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "blxr_tx",
    "params": {
      "transaction": "f86b0184...e0b58219",
      "blockchain_network": "X-Layer-Mainnet"
    }
  }'

RESPONSE

Result Fields

Result Field	Description
tx_hash	Transaction hash

Examples

Response

{
    "jsonrpc": "2.0", 
    "id": "1", 
    "result": {
        "tx_hash": "ffd59870844e5...bfa54a69"
    }
}    

Rate Limits

Plan	Max Transactions	Time Window
Ultra	10 tx	1 second
Enterprise-Elite	5 tx	1 second
Enterprise	3 tx	1 second
Professional	1 tx	5 seconds
Introductory	1 tx	5 seconds