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Configure mempool filters from a webhook

Turn an approved monitoring request into ready-to-use mempool filters.

Trigger

Webhook received

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

Action

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.

Why this helps

Filter setup is easy to misconfigure when criteria are copied between tools under time pressure.

  • Creates a repeatable filter setup path
  • Keeps approved criteria in one request
  • Supports ABI decoding preparation

Setup

Build it in a few focused steps.

  • 1Connect Blocknative in the Notis portal once.
  • 2Create an automation that reads approved filter and ABI criteria from the webhook payload and asks Blocknative to configure them after a websocket connection exists.
  • 3Pick a Notis webhook as the trigger.
  • 4Choose a report channel and test with one approved payload.

Questions about this workflow

Does this establish the websocket connection?

No. The Blocknative action is used after a websocket connection has been established.

What must the webhook include?

Provide the contract, event, filter, and ABI criteria needed for the requested decoding.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

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

Outlook 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 Contact Added

Triggered when a new contact is added in the Outlook contacts.

TriggerInstant

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

Calendar Event Changes

Triggered when a new calendar event occurs (created, updated, or deleted) in the Outlook calendar.

TriggerInstant

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

New Calendar Event

Triggered when a new calendar event is created in the Outlook calendar.

TriggerInstant

Get Supported Chains

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

ActionInstant

New Outlook Message

Triggered when a new message is received in the Outlook mailbox.

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

New Sent Message

Triggered when a new message is sent from the Outlook mailbox.

TriggerInstant

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.

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

When this happens · Trigger

Do this · Action

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