Watch pending transactions after a risk event
Move from a reported risk signal to live pending transaction visibility in seconds.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Mempool Subscription
Tool to subscribe to real-time mempool updates for evm chains (ethereum, bnb, etc.). use after constructing your graphql subscription to stream pending transactions live.
Why this helps
Investigators can miss fast-moving activity while waiting for transactions to confirm.
- See pending activity sooner
- Focus monitoring on a specific case
- Reduce manual mempool setup
Setup
Build it in a few focused steps.
- 1Connect 21risk and Bitquery in Notis once.
- 2Create an automation named Mempool risk event watch.
- 3Tell Notis to use the webhook context to construct a Bitquery mempool subscription for the relevant EVM network, addresses, or contracts.
- 4Choose a webhook trigger and the report channel for subscription updates.
- 5Test with one real risk event and confirm the monitoring scope.
Questions about this workflow
Which networks support this?
Use an EVM network supported by Bitquery mempool subscriptions and name it in the instruction.
Does this monitor confirmed transactions?
This action is for pending mempool updates; use realtime or combined queries for confirmed activity.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link 21risk to Bitquery. A trigger fires from one place; an action lands in another.
21risk triggers
Bitquery actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Aliases Metric
Tool to use graphql aliases to rename fields in the response for clarity and disambiguation. use when you need to query multiple metrics with identical field names in one call.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Archive Database Query
Tool to query the archive database. use when you need full historical blockchain data (delayed by tens of minutes to hours).
Combined Database Query
Tool to query the combined database, which merges archive and real-time databases. use when you need both historical and up-to-the-second blockchain data in one request.
Conditional Metrics Snippet
Tool to generate a graphql metric snippet with conditional logic. use when you need to apply filters directly on metric calculations via the `if` attribute.
Count Distinct Metric
Tool to use the count distinct metric to aggregate unique values for a field. use when you need to count the number of unique occurrences in a dataset.
Count Metric
Tool to use the count metric to aggregate the number of records matching a graphql query. use when you need simple record counts.
Database Selection
Tool to select the database (archive, realtime, combined) to query at the top level of a graphql request. use after determining whether you need live, historical, or combined blockchain data.
Early Access Program Query
Tool to access streaming data across various blockchain networks for evaluation purposes. use when querying chains not available via the v2 endpoint; limited to real-time data only.
Connect any two apps with Notis in the middle.
21risk and Bitquery, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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