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Stop transaction monitoring from a webhook

Close a monitoring subscription as soon as the owning system says it is done.

Trigger

Webhook received

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

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

Monitoring cleanup often lags behind cancellations and incident resolution.

  • React quickly to cancellation events
  • Reduce stale subscriptions
  • Standardize cleanup across systems

Setup

Build it in a few focused steps.

  • 1Connect Blocknative in Notis.
  • 2Create a webhook automation for transaction monitoring cleanup.
  • 3Tell Notis to read the transaction hash and prepare the matching Blocknative unsubscribe action.
  • 4Choose the webhook trigger and report channel.
  • 5Test with one cleanup webhook.

Questions about this workflow

What event should call the webhook?

Use the event your system emits when transaction monitoring is no longer required.

Does this reverse a transaction?

No. It only unsubscribes from status monitoring.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

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

Google Tasks 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

New Task Created

Triggers when a new task is created in a Google Tasks list. Uses timestamp filtering (updatedMin) to efficiently detect new tasks.

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

New Task List Created

Triggers when a new Google Tasks task list is created. This trigger monitors Google Tasks and fires when new task lists are detected.

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

Task Details Changed

Triggers when a specific task's details change. This trigger monitors a single Google Task and fires when any of its details (title, notes, status, due date, completion, position) are modified.

TriggerPolling

Get Supported Chains

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

ActionInstant

Task List Changed

Triggers when a task list changes (title or content updates). This trigger monitors a specific Google Tasks list and fires when changes are detected.

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

Task Updated

Triggers when an existing task is updated in a Google Tasks list. This trigger monitors a specific task list and fires when tasks are modified.

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

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

When this happens · Trigger

Do this · Action

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