Verify Your Sales Records Against Blockchain Data
When you document an NFT sale, verify it against actual marketplace activity
Trigger
Page Content Updated
Triggers when the body content of a Notion page is updated. Customer optionally scopes with at most one of: - data_source_id: any row in this data source - page_id: this specific page - parent_page_id: any page whose immediate parent is this page With none set, fires for any page content edit in the workspace the integration has access to. Notion aggregates content edits within a short window (~60s typical).
Action
Get NFT Sales
This tool will retrieve nft sales data across various marketplaces. it allows users to query historical nft sales data with filtering options such as fromblock, toblock, order, marketplace, and limit in order to track nft sales activity, analyze historical data, monitor specific collections, and get real-time updates on nft transactions.
Why this helps
Recording sales manually without checking actual marketplace activity leads to mismatched prices, incorrect buyer/seller info, and audit headaches.
- Catch pricing errors and mismatches before they compound
- Verify buyer and seller addresses match records
- Confirm marketplace and transaction type
- Reduce accounting and audit friction
Setup
Build it in a few focused steps.
- 1Connect your Notion workspace to Notis.
- 2Connect Alchemy to Notis to query NFT sales data.
- 3Create an automation that says: 'When I add notes about an NFT sale in my Sales Log, pull the sales record from Alchemy and compare it to what I logged. Show me if the price, buyer, seller, or marketplace differ.'
- 4Set 'Page Content Updated' as the trigger, scoped to your Sales Log pages.
- 5Test by recording a past sale you remember and let Notis fetch and compare the blockchain record.
Questions about this workflow
What if a sale happened across multiple marketplaces?
Alchemy returns sales from OpenSea, Blur, LooksRare, and others. Notis will show all records for that NFT during that time window.
How far back can I verify sales?
You can query Alchemy data back several years depending on your Alchemy tier. Specify the date range in your automation prompt.
What happens if I find a mismatch?
Notis highlights the discrepancy in your page and flags it for review. You can then investigate which record is correct.
When this happens · Trigger
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Supported Triggers and Actions
Notis builds workflows that link Notion to Alchemy. A trigger fires from one place; an action lands in another.
Notion triggers
Alchemy actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Get NFT Contract Metadata
This tool retrieves metadata for a given nft smart contract. essential for obtaining basic nft collection details such as contract name, symbol, total supply, token type (erc721 vs erc1155), contract deployer address, deployed block number, opensea metadata, and contract verification status.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get NFT Sales
This tool will retrieve nft sales data across various marketplaces. it allows users to query historical nft sales data with filtering options such as fromblock, toblock, order, marketplace, and limit in order to track nft sales activity, analyze historical data, monitor specific collections, and get real-time updates on nft transactions.
All Page Events
Triggers when any Notion page is created or updated across the workspace.
Get NFTs for Contract
This tool retrieves all nfts for a given contract address. it is designed to return a complete list of nfts from a specific nft collection by accepting parameters such as contractaddress (required), withmetadata (optional), pagesize (optional), and pagekey (optional). the tool is useful for analyzing collections, building nft marketplaces, and creating collection analytics.
Comment Created
Triggers when a new comment is created in Notion. Optional `page_id` filter scopes to comments on a specific page. When omitted, fires for any new comment in the workspace the integration has access to. Requires the 'Read comments' capability on the Notion integration. If a connection was authorized before that capability was enabled, the user must re-authorize the connection for comment events to flow.
Get NFT Owners
This tool retrieves the owner(s) for a specific nft token, supporting both erc721 and erc1155 tokens on ethereum and several layer 2 chains such as polygon, arbitrum, optimism, and base. it requires the contract address and tokenid, and returns a list of owner addresses along with an optional pagination key for further results.
New Comment
Triggers when a new comment is added to a specified Notion block or page.
Get Token Balances
This tool retrieves erc20 token balances for a specified ethereum address. it can either return balances for all tokens an address has ever interacted with or for a specific set of token contract addresses. it is useful for checking token balances for wallets, monitoring erc20 token holdings, portfolio tracking, and defi applications.
Database Created
Triggers when a new Notion database (the container) is created. A database is the post-2025-09-03 container that holds one or more data sources. This trigger fires for the container's creation event (`database.created`), distinct from `NOTION_DATASOURCE_CREATED` which fires when a new data source is added to an existing database. Most customers calling Notion's `POST /v1/databases` (the legacy API) or creating a database via the Notion UI will see this event. Adding a new data source to an existing database fires `data_source.created` instead — use `NOTION_DATASOURCE_CREATED` for that. Notion's payload puts `entity.type: "block"` (the container is a `child_database` block in the content tree) and `entity.id` is the database id.
Get Token Metadata
This tool retrieves metadata for a given token contract address, including the token's name, symbol, decimals, and logo url if available. it is essential for applications that need to display token information, handle token transfers, or manage token listings.
Data Source Created
Triggers when a new Notion data source is created. Fires workspace-wide. The payload's `data.parent` carries the data source's tree parent (typically the teamspace) for downstream filtering. A single template-based database creation can fire multiple `data_source.created` events at once — one per data source the template instantiates.
Get Transaction Count
This tool retrieves the number of transactions sent from a specific address (also known as the nonce). it uses the eth gettransactioncount endpoint to return the transaction count for an address at a specified block tag (latest, pending, earliest, or a hex block number), which is essential for determining the nonce for subsequent transactions.
Data Source Schema Updated
Triggers when a Notion data source's schema is updated. Fires on column add / remove / rename. Payload includes `data.updated_properties: [{id, name, action}]` so consumers can discriminate the kind of change downstream. Optional `data_source_id` filter scopes to schema changes on a single data source. When omitted, fires for any schema change in the workspace the integration has access to. Note: adding a column also fires `page.properties_updated` once per existing row in the data source. Customers wanting a single structural-change signal should use this trigger.
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