OnchainDeck
Home/Private Swaps/Flashbots Protect vs Penumbra
Private Swaps Comparison · 2026

Flashbots Protect vs Penumbra

Which is better in 2026? We compare Flashbots Protect and Penumbra side by side — pricing, features, pros & cons — so you can choose the right Private Swaps tool.

🏆 Flashbots Protect has the higher rating (4.4/5)
🏆 Higher Rated
F

Flashbots Protect

★4.4

Free RPC endpoint from Flashbots that sends transactions directly to block builders, bypassing the public mempool to prevent frontrunning and sandwich attacks.

PricingFree
CategoryPrivate Swaps
Rating4.4/5
Visit Flashbots Protect →Full profileFlashbots Protect alternatives →
P

Penumbra

★4.0

Fully private DEX and shielded transactions on Cosmos. ZK-SNARKs for private trading, staking, and governance. Cross-chain privacy via IBC.

PricingFree
CategoryPrivate Swaps
Rating4/5
Visit Penumbra →Full profilePenumbra alternatives →

Feature Comparison

FeatureFlashbots ProtectPenumbra
Private transaction pool✓—
Frontrunning protection✓—
Fast inclusion mode✓—
Revert protection✓—
Builder network access✓—

Pricing Comparison

Flashbots Protect

Free

Completely free to use with no paid tiers.

View pricing →

Penumbra

Free

Completely free to use with no paid tiers.

View pricing →

Pros & Cons

Flashbots Protect

👍 Pros

  • +Free to use
  • +From the Flashbots team
  • +No failed transaction costs
  • +Easy wallet integration

👎 Cons

  • −Ethereum only
  • −Transactions may be slightly slower
  • −Limited to supported builders

Penumbra

Users also compared

F
vs
C

Flashbots Protect vs CoW Swap

Private Swaps

F
vs
M

Flashbots Protect vs MEV Blocker

Private Swaps

F
vs
1

Flashbots Protect vs 1inch Fusion

Private Swaps

Get the best onchain tools in your inbox every week

Join traders and DeFi users who discover new crypto tools, strategies, and alpha every week. Free, no spam.

No spam. Unsubscribe at any time.