Send Bundle

Solana's bundle sending service is not bound to the subscription plan, with rate limit default to 3 TPS. API key could be required from Authentication. If you need to increase the TPS limit, please contact us and we will handle it as soon as possible.

Send Bundle is a bundle sending interface provided by BlockRazor for Solana, used to send signed transactions to the blockchain in bundle form with low latency.

A maximum of four transactions can be sent in a single bundle. These transactions are executed sequentially, and if any one transaction fails, the entire bundle will fail.

To enhance MEV protection, use any valid Solana public key starting with jitodontfront and dontbund1e in the instructions of the first transaction in the bundle. If the transaction is subjected to a frontrun attack, it will be rejected by the Jito/Harmonic block engine.

Endpoint

• POST /sendBundle

• gRPC

Transaction Construction Example

• Curl

• Go

• Rust

• JS

Request Parameter

Parameters	Mandatory	Format	Example	Description
transactions	Mandatory	string[]	["$base64_tx_1","$base64_tx_2","$base64_tx_3"]	Fully signed transactions, Base64 encoding protocal