MCP For Claude Marketplace
Blocknative (Ethereum Mempool API)

Blocknative (Ethereum Mempool API) MCP Connector for Claude

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Get real-time Ethereum gas price suggestions based on live mempool data from Blocknative.

1 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

Connect to the Blocknative Gas Platform to access high-confidence gas price estimations directly from your AI agent. By monitoring the Ethereum mempool in real-time, this server helps you optimize transaction costs and speed.

What you can do

  • Real-time Gas Prices — Fetch current gas price suggestions categorized by confidence levels (99%, 95%, 70%, etc.)
  • Mempool Insights — Access data derived from live mempool conditions to ensure your transactions get included in the next block
  • Cost Optimization — Compare different gas price tiers to balance between cost and speed for your Ethereum operations

How it works

  1. Subscribe to this server
  2. Enter your Blocknative API Key
  3. Ask your AI for the latest gas prices before sending any transaction

Who is this for?

  • Web3 Developers — Integrate gas estimation into your development workflow to avoid overpaying or stuck transactions
  • DeFi Traders — Monitor gas spikes to time your swaps and liquidity provisions perfectly
  • Crypto Enthusiasts — Quickly check network congestion levels through natural language
ethereumgas-pricesmempoolweb3crypto-transactions

1 tools expose this connector's capabilities to your AI agent.

get_gas_prices

Get real-time gas price suggestions

See how to talk to your AI agent using Blocknative (Ethereum Mempool API).

What are the current Ethereum gas prices according to Blocknative?

I've fetched the latest gas prices. For a 99% confidence of inclusion in the next block, the suggested base fee is 15 Gwei with a priority fee of 1.5 Gwei. Lower confidence tiers (70%) are around 12 Gwei.

Give me gas price suggestions for a high-priority transaction.

For high priority, you should use the 99% confidence tier. Blocknative suggests a Max Fee of 18.5 Gwei and a Priority Fee of 2.0 Gwei based on current mempool congestion.

Is the Ethereum network congested right now? Check the gas prices.

Checking the mempool... Gas prices are currently elevated, with the 99% confidence tier at 45 Gwei. This suggests significant activity or a spike in demand on the network.

Use the `get_gas_prices` tool. It fetches high-confidence suggestions directly from Blocknative's mempool monitoring, providing you with the exact values needed for rapid inclusion.

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