Clean up multichain monitoring on demand
Make subscription cleanup as easy as starting it.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Unsubscribe Multichain
Tool 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' }).
Why this helps
Finished campaigns leave multichain subscriptions running because cleanup is disconnected from the closing workflow.
- Close monitoring from any system
- Reduce stale subscriptions
- Create a traceable cleanup response
Setup
Build it in a few focused steps.
- 1Connect Blocknative in Notis once.
- 2Create an automation that reads the webhook request and prepares the Blocknative multichain unsubscribe details.
- 3Choose a Notis webhook trigger and provide its endpoint to the sending system.
- 4Select the report destination.
- 5Send one real cleanup payload to test it.
Questions about this workflow
What identifiers are needed?
Provide the subscription identifiers and chain context required by your Blocknative multichain setup.
Does this delete historical events?
No. It prepares unsubscribe details for active monitoring.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Trello to Blocknative. A trigger fires from one place; an action lands in another.
Trello 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.
Card Archived Trigger
Triggered when a card is archived in the specified board
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.
New Activity Trigger
Triggered when there is activity in Trello.
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.
New Board Trigger
Triggered when a board is created in the specified workspace
Get Supported Chains
Tool to retrieve supported chains metadata. use when discovering available networks for blocknative gas services.
New Card Trigger
Triggered when a card is created in the specified board
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.
Card Updated Trigger
Triggered when a specific card is updated
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.
Trello and Blocknative, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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