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Notis

Unsubscribe watches for canceled events

Canceled work should stop generating transaction alerts immediately.

Trigger

Event Canceled or Deleted

Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.

Action

Unsubscribe Transaction Hash

Tool to unsubscribe from transaction state change events for an ethereum transaction hash. use after establishing a blocknative websocket connection to prepare the unsubscription message.

Why this helps

Canceled launches and transactions can leave unnecessary Blocknative subscriptions running.

  • Stop irrelevant monitoring
  • Reduce alert clutter
  • Keep canceled work from consuming attention

Setup

Build it in a few focused steps.

  • 1Connect Google Super and Blocknative once in the Notis portal.
  • 2Create an automation named Canceled event watch cleanup.
  • 3Tell Notis to find the transaction hash associated with each canceled or deleted event and unsubscribe it in Blocknative.
  • 4Pick Event Canceled or Deleted as the trigger and choose a report channel.
  • 5Test with one real canceled event.

Questions about this workflow

What if no transaction hash is available?

Notis can report that no associated hash was found and avoid an unsubscribe call.

Does this affect other active watches?

It should only unsubscribe the hash associated with the canceled event.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Google Super to Blocknative. A trigger fires from one place; an action lands in another.

Google Super triggers

Blocknative actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

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.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Get Gas Price Distribution

Tool to retrieve the current mempool gas price distribution breakdown. use when analyzing gas price trends or preparing fee strategies.

ActionInstant

Aggregate Metric Changed

Triggers when an aggregate metric (SUM/COUNT/AVG/MIN/MAX) changes in a Google Sheets spreadsheet. This trigger monitors an aggregate calculation on a target column (optionally filtered by a search column/value) and fires when the calculated result changes.

TriggerPolling

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.

ActionInstant

Attendee Response Changed

Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.

TriggerPolling

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.

ActionInstant

Cell Range Values Changed

Triggers when values in a specified A1 range change in Google Sheets. This trigger monitors a specific cell or range of cells and fires when any values change.

TriggerPolling

Get Supported Chains

Tool to retrieve supported chains metadata. use when discovering available networks for blocknative gas services.

ActionInstant

Comment Added (Docs/Sheets/Slides)

Triggers when a new comment is added to Google Docs, Sheets, or Slides.

TriggerPolling

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.

ActionInstant

Conditional Format Rule Changed

Triggers when conditional formatting rules change in a Google Spreadsheet. Detects when rules are added, updated, or removed. Uses snapshot-based diffing to detect changes between polls.

TriggerPolling

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.

ActionInstant

Data Validation Rule Changed

Triggers when data validation rules change (added/updated/removed) in a Google Spreadsheet. Uses snapshot-based diffing to detect changes between polls.

TriggerPolling

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.

ActionInstant

Connect any two apps with Notis in the middle.

Google Super and Blocknative, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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