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Blocknative

Mempool and on-chain data platform with webhooks, WebSockets and transaction-preview APIs for Web3 app reliability.

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Our Verdict

Essential infrastructure for serious EVM dApp builders; no equivalent alternative for mempool visibility.

Pros

  • Pre-chain mempool visibility unique in Web3
  • Transaction simulation prevents failed txs
  • WebSocket streams for real-time monitoring
  • Battle-tested on MetaMask and major wallets

Cons

  • Web3-only, irrelevant for traditional stacks
  • Ethereum-centric with limited L1/L2 coverage outside EVM
  • Pricing opaque for higher-volume tiers
  • Mempool data reliability varies by network
Best for: Web3 teams building wallets, dApps or MEV tools on EVM chains. Not for: Non-Web3 projects or teams on Solana/Cosmos/non-EVM chains.

When to Use Blocknative

Good fit if you need

  • Monitor mempool transactions before on-chain confirmation
  • WebSocket alerts on gas price spikes for DeFi apps
  • Transaction-preview API for user-facing Web3 UX
  • Detect failed transactions and resubmit with bump logic

Blocknative Pricing

Pricing Model
freemium
Free Tier
Yes
Entry Price
β€”
Enterprise Available
No
Transparency Score
β€”

Beta β€” estimates may differ from actual pricing

1,000
1001K10K100K1M

Estimated Monthly Cost

$25

Estimated Annual Cost

$300

Estimates are approximate and may not reflect current pricing. Always check the official pricing page.

Lock-in Assessment

Medium 3/5
Lock-in Score
3/5

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