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Notis

Prepare a multichain subscription from a request

When a transaction or address needs attention across chains, prepare the subscription details from one request.

Trigger

Webhook received

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

Action

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.

Why this helps

Cross-chain follow-up can require repeated setup and leave the scope of monitoring unclear.

  • Prepare subscription details for a transaction hash or account address.
  • Support requests that involve multiple chains.
  • Make the intended monitoring subject explicit in the request.

Setup

Build it in a few focused steps.

  • 1Connect 2chat and Blocknative once in the Notis portal.
  • 2Create an automation in Automations, New Automation, or tell Notis what to create from any channel.
  • 3In one instruction, ask Notis to prepare Blocknative multichain subscription details for the request's hash or address and stated chains.
  • 4Choose the webhook trigger and where run reports should go.
  • 5Test with one real address or transaction request and review the returned details.

Questions about this workflow

Does this discover chains automatically?

The action prepares multichain subscription details. Supply the intended chain context in the request when it matters.

Does it start ongoing tracking?

The action generates subscription details for use with the multichain SDK. It does not claim to run a persistent monitor by itself.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link 2chat to Blocknative. A trigger fires from one place; an action lands in another.

2chat 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

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

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

Get Supported Chains

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

ActionInstant

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

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.

2chat and Blocknative, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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