Monitor transaction status from a risk review
Keep a reviewed transaction visible from pending through its next state change.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
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.
Why this helps
Important transaction reviews go stale while someone manually watches a hash.
- Keeps critical hashes under watch
- Reduces manual polling
- Improves review follow-through
Setup
Build it in a few focused steps.
- 1Connect 21risk and Blocknative once in the Notis portal.
- 2Create an automation describing the transaction hash and review context.
- 3Choose a webhook trigger for the review request.
- 4Select a report destination for subscription results.
- 5Test with one non-sensitive transaction hash.
Questions about this workflow
What is required to subscribe?
Provide the Ethereum transaction hash and ensure a Blocknative websocket connection is available.
Does this confirm the transaction outcome?
It prepares a subscription for state change events so the latest status can be monitored.
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.