Solana Trader API

RPC Fast partnered with bloXroute to bring SWQoS benefits to our clients.

The Solana Trading API provides blazing-fast transaction propagation on Solana network, as well as additional features, such as MEV protection while utilizing bloXroute's infrastructure (SWQoS) under the hood.

To use the API along with RPC Fast's dedicated node, you need to purchase a Professional or any other tier from bloXroute directly: https://bloxroute.com/pricing/. Select a tier based on your application's expected load profile. Below, you'll find an instruction on how to use the integration.

How to enable Trader API?

• Add blxr_enable=1 query arg, i.e. https://solana-rpc.rpcfast.net/?blxr_enable=1

• Or add /trader to request path, i.e. https://solana-rpc.rpcfast.net/trader

Authentication options

• via HTTP header X-TOKEN: your_token

• via HTTP query argument api_key=your_token

Submit transaction via API

We have integrated Trader API with default Solana sendTransaction RPC method, so it is compatible with all Solana language libraries, i.e. solana/web3.js, solana.py, gagliardetto/solana-go etc.

Example request with curl

curl -XPOST -H 'X-TOKEN: your_token' \
https://solana-rpc.rpcfast.net/trader?tx_submit_mode=fastest&tip_amount=1000000 -d '
{
	"jsonrpc": "2.0",
	"method": "sendTransaction",
	"params": [
		"your_signed_transaction",
		{
			"encoding": "base64"
		}
	],
	"id": 1
}'

Query parameters

Parameter	Description	Allowed values	Required
blxr_enable	Enable BloXRoute Trader API integration	1	yes, except when using /trader endpoint
tx_submit_mode	Transaction submission mode	fastest, mev_protect, balanced	no
tip_amount	Tip amount in Lamports SaaS users only	min. 1000000	yes (SaaS users only)
fallback	Whether to fallback to default sendTransaction on reaching CU limit	true, false	no
mev_protect_level	MEV protection level, affects tx landing speed	low, medium, high	no

Transaction submission modes

Mode	Description
not specified	Transaction is sent through BloXRoute's network
fastest	Transaction is send to staked nodes allowing for the fastest propagation
mev_protect	Enable front-running protection in cost of slower transaction propagation, routed through Jito
balanced	Balanced mode between tx landing speed and front-running protection

Tip fee for sending transactions

Tip should be specified in lamports (1 SOL = 1,000,000,000 lamports).

The minimum required tip amount is 0.001 SOL or 1,000,000 Lamports.

RPCFast SaaS users must specify tip fee using tip_amount query argument, it will be automatically converted to Compute Units and debited from balance.

RPCFast Dedicated node users must create tip fee instruction by themselves and include it inside the transaction body. https://docs.bloxroute.com/solana/trader-api/best-performance-for-landing-transactions#optimizing-transaction-performance

Setting a larger tip will increase propagation speed.

To check most up-to-date recommended tip amount, consider subscribing to websocket endpoint.

Transaction priority fee

Prioritization Fees are an optional fee, priced in micro-lamports per Compute Unit (e.g. small amounts of SOL), appended to transactions to make them economically compelling for validator nodes to include in blocks on the network.

Please check official Solana documentation on how to add priority fee to your transaction.

To receive up-to-date priority fees consider subscribing to priority fee stream websocket.