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Notis

Understand who holds an NFT collection

Request holder data for a collection and get a concise view of the ownership distribution returned by Alchemy.

Trigger

Webhook received

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

Action

Get Owners for Collection

Lists owner addresses for an NFT collection, with optional token balances.

Why this helps

Assessing collection ownership requires pulling holder data and making sense of a long list of addresses.

  • Retrieve owner addresses for a specified collection contract.
  • Request token balances per owner where supported by the action.
  • Summarize the returned distribution for faster review.

Setup

Build it in a few focused steps.

  • 1Connect Addressfinder and Alchemy once in the Notis portal.
  • 2Create an automation in Automations, New Automation, and name it Collection Holder Report.
  • 3Tell Notis to retrieve owners for the supplied NFT collection contract and summarize returned owner counts and balances when available.
  • 4Pick the webhook trigger and select a report channel.
  • 5Test with a collection contract you can verify.

Questions about this workflow

Does the result establish why an address holds a token?

No. It returns holder information and optionally token balances; it does not explain how ownership was acquired.

Can this identify whale concentration?

Not by itself as a labeled metric. Notis can summarize the returned owner and balance data, while any threshold or definition should be supplied by you.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

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

Addressfinder triggers

Alchemy actions

Recurring trigger

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

TriggerScheduled

Compute NFT Rarity

Compares each NFT trait’s prevalence within its collection to show how common or rare it is.

ActionInstant

Webhook trigger

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

TriggerInstant

Get Collections for Owner

Retrieves NFT collections held by an Ethereum wallet, with ownership counts and collection details.

ActionInstant

Get NFTs for Contract

Retrieves all NFTs for a given contract.

ActionInstant

Get NFT Collection Metadata

Retrieves collection details, such as its description, social links, and floor price.

ActionInstant

Get Contracts for Owner (NFT API v3)

Lists NFT contracts owned by an address with contract and collection details.

ActionInstant

Get Token Balances

Retrieves ERC-20 token balances for an Ethereum address.

ActionInstant

Get Contract Metadata Batch V3

Retrieves metadata for multiple NFT contracts in one request.

ActionInstant

Get Token Metadata

Retrieves an Ethereum token's name, symbol, decimals, and logo.

ActionInstant

Connect any two apps with Notis in the middle.

Addressfinder and Alchemy, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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