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Blocknative

10 tools Developer Tools

Blocknative provides real-time mempool monitoring and transaction management tools for public blockchains.

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Connect Blocknative

  1. Open Slashspace and go to Settings, then Connectors.
  2. On Discover, search for Blocknative and click Connect.
  3. Sign in to Blocknative in your browser. Slashspace updates when the account is connected.
  4. Then ask for what you need in any Agent mode chat. Blocknative is on in every chat unless you switch it off.

What your chats can do

10 tools from Blocknative.

  • Configure Mempool FiltersTool to configure filters and ABI decoding for Ethereum mempool transactions. Use after establishing a Blocknative WebSocket connection to set up event filters and decoding.
  • Get Gas Price DistributionTool to retrieve the current mempool gas price distribution breakdown. Use when analyzing gas price trends or preparing fee strategies.
  • Get Gas OraclesTool to retrieve metadata on supported gas oracles per chain. Use when you need to dynamically discover all available on-chain gas estimation oracles across networks.
  • Get Gas PricesTool to fetch gas price estimates for specific inclusion probabilities. Use when you need gas price ranges for the next block or next ~10 seconds.
  • Get Supported ChainsTool to retrieve supported chains metadata. Use when discovering available networks for Blocknative gas services.
  • Get Base Fee EstimatesGet real-time gas fee predictions for Ethereum mainnet's next 5 blocks. Returns base fee, blob base fee, and priority fee estimates at multiple confidence levels (99% and 50%). Essential for optimizing transaction costs and timing. Predictions include current block context (block number, time since last block) and estimated fees in gwei.
  • Subscribe MultichainGenerate WebSocket connection details to subscribe to real-time blockchain events (transactions or account activity) across multiple chains via Blocknative's Multichain API. Returns the WebSocket URL and subscription message payload needed to establish the connection and start receiving event notifications for a specific transaction hash or account address on any supported blockchain.
  • Subscribe Transaction HashTool to subscribe to transaction state change events of an Ethereum transaction hash. Use after establishing a Blocknative WebSocket connection to prepare the subscription message.
  • Unsubscribe MultichainTool to unsubscribe from events across multiple chains using the Multichain SDK. Use after stopping monitoring of an address or transaction to clean up resources, e.g., call: blocknative.unsubscribe({ id: '0x..', chainId: '0x1' }).
  • Unsubscribe Transaction HashTool to unsubscribe from transaction state change events for an Ethereum transaction hash. Use after establishing a Blocknative WebSocket connection to prepare the unsubscription message.