Global endpoint

Introducing the Fastest Way to Submit and Land Transactions on Base chain.

The Global Endpoint for Base is the fastest, most reliable way to submit transactions.

• Flashblocks-aware submission: Aligns with Base’s ~200 ms Flashblocks cadence for faster preconfirmation landing.

• BDN reliability: Transactions delivered via bloXroute’s Blockchain Distribution Network (BDN) with redundancy & optimal routing.

• One global endpoint: No need to pick regions, we auto-route your transactions to optimize for speed.

To use this Cloud API endpoint, each transaction must contain a minimum tip of 0.000003 ETH per transaction, which should be sent to 0x00D5c43e68FB37D3761A5688D3B705A2Bdc4BC9D

Global endpoint:

• HTTP: http://global.base.blxrbdn.com:8888

• WS: ws://global.base.blxrbdn.com:8889/ws

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 Base-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.

Examples

wscat WS

wscat -c ws://global.base.blxrbdn.com:8889/ws --header "Authorization: <YOUR-AUTHORIZATION-HEADER>"
> {"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params":
   {"transaction": "f86b0184...e0b58219", "blockchain_network": "Base-Mainnet"}}
< ...

HTTP Post

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