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Add a base fee outlook when you create an event

A new calendar commitment can cue a quick look at predicted base fees, keeping transaction planning visible without another manual check.

Trigger

Event Created

Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.

Action

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.

Why this helps

Fee planning often sits in a separate tool and is easy to forget while adding commitments to your calendar.

  • Get real-time predictions for the next five blocks in the run report.
  • Keep fee planning close to the event that prompted it.
  • Review 50% and 99% confidence estimates when available.

Setup

Build it in a few focused steps.

  • 1Connect Google Calendar and Blocknative once in the Notis portal.
  • 2Create an automation in Automations, New Automation, or tell Notis what you want from any channel.
  • 3In one instruction, ask Notis to retrieve Blocknative base fee estimates when a new calendar event is created and report the predictions.
  • 4Pick Event Created as the trigger and choose where run reports should go.
  • 5Test with one real calendar event and check the report.

Questions about this workflow

What does Blocknative return?

The action provides real-time predictions for base fee and blob base fee for the next five blocks.

Will every calendar event receive a fee estimate?

The trigger fires for newly created calendar events. You can describe in your instruction which events are relevant, but Notis does not provide trigger filters.

Does the outlook guarantee a transaction fee?

No. The estimates are predictions to inform planning, not a guarantee of a final fee.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

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

Google Calendar 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

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 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

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.

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

Event Starting Soon

Triggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available.

TriggerPolling

Get Supported Chains

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

ActionInstant

Calendar Event Changes

**SOON TO BE DEPRECATED** - Use Calendar Event Sync (polling trigger) instead. Real-time webhook trigger for calendar event changes. Returns event metadata only. For full event data, use Calendar Event Sync (polling trigger).

TriggerInstant

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

Event Created

Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.

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

Calendar Event Sync

Polling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook).

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

When this happens · Trigger

Do this · Action

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