Configure Blocknative mempool filters from a 21risk audit brief
Start a compliance review with the exact mempool signals your team needs.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Configure Mempool Filters
Tool to configure filters and abi decoding for ethereum mempool transactions. use after establishing a blocknative websocket connection to set up event filters and decoding.
Why this helps
Audit preparation often leaves engineers translating risk questions into monitoring rules by hand.
- Reduces setup time for transaction monitoring
- Keeps filters tied to current audit scope
- Creates a repeatable monitoring handoff
Setup
Build it in a few focused steps.
- 1Connect 21risk and Blocknative once in the Notis portal.
- 2Create an automation and describe the filter outcome in one instruction.
- 3Choose a webhook trigger for the incoming 21risk audit brief.
- 4Select a report channel for configuration results.
- 5Test with one real audit scope and verify the filters.
Questions about this workflow
What does the automation need from 21risk?
Provide the audit scope, networks, contracts, and transaction patterns to watch in the webhook request.
Does this open a Blocknative connection?
The action configures filters after a Blocknative websocket connection is available.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link 21risk to Blocknative. A trigger fires from one place; an action lands in another.
21risk triggers
Blocknative actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Configure Mempool Filters
Tool to configure filters and abi decoding for ethereum mempool transactions. use after establishing a blocknative websocket connection to set up event filters and decoding.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Gas Price Distribution
Tool to retrieve the current mempool gas price distribution breakdown. use when analyzing gas price trends or preparing fee strategies.
Get Gas Oracles
Tool 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 Prices
Tool 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 Chains
Tool to retrieve supported chains metadata. use when discovering available networks for blocknative gas services.
Get Base Fee Estimates
Tool to get real-time predictions for base fee and blob base fee for the next 5 blocks. use when you need both 99% and 50% confidence estimates for upcoming blocks.
Subscribe Multichain
Tool to generate websocket subscription details for events across multiple chains. use when preparing to track a transaction hash or account address across chains via blocknative multichain sdk.
Subscribe Transaction Hash
Tool to subscribe to transaction state change events of an ethereum transaction hash. use after establishing a blocknative websocket connection to prepare the subscription message.
Connect any two apps with Notis in the middle.
21risk and Blocknative, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Blocknative.