
What is Priority Fee?
Priority fee determines how quickly your transaction gets included in a block by validators. Higher fees mean better inclusion rates and faster execution.| Mode | Cost | Best for |
|---|---|---|
| FAST | 0.00015 SOL | Most use cases. Reliable inclusion |
| ULTRA | 0.0015 SOL | First-block acquisition, time-sensitive trades, or congested network |
| CUSTOM | You decide | Full control. Set mode: "CUSTOM" with your value in value |
FAST is the default. Reliable inclusion for the vast majority of use cases.
When to Use ULTRA
ULTRA mode is recommended when:- First-block acquisition: You need to be among the first buyers
- Arbitrage: Speed is critical for capturing opportunities
- Network congestion: Solana is overloaded and transactions are slow
How to Configure Priority Fee
Transaction priority level. Options:
FAST: 0.00015 SOL per transaction (default)ULTRA: 0.0015 SOL per transactionCUSTOM: Use the value specified invalue
Custom priority fee in SOL. Only used when
mode is set to CUSTOM.Minimum: 0.00015 SOL. If the value provided is below 0.00015, it is automatically raised to 0.00015 to prevent transaction failure.Examples
- FAST (default)
- ULTRA
- Custom
Full Example
What’s Next?
Buy Tokens
Execute buy orders
Platform Attribution
Choose which platform logo appears on your transactions