Explore NFT API, its use cases and how to utilize it


The NFT API is a solution designed to fulfill diverse on-chain data requirements concerning NFTs. It consolidates all the relevant data on NFTs into one convenient location, which allows users to quickly and efficiently access the specific NFT data they require without sifting through extraneous information.

Supported standards

NFT StandardAvailable

Use cases

The NFT API is suitable for any Web3 project, including the NFT marketplace, NFT games, NFT renting platform, Portfolio tracker, NFT event tickets, and more.

Address InventoryProvides all the NFTs currently held by a specific addressdescending
Address Inventory HistoryProvides all the NFTs ever held by a specific addressdescending
Token Ownership HistoryProvides all the addresses where a specific NFT has been heldascending
Token MetadataProvides the metadata for a specific token
Contract MetadataProvides the metadata for a specific contract
Current Collection HoldersProvides all holders who currently possess NFTs from a specific collection

Available blockchain platforms:

PARSIQ strives to bring as many valuable blockchain platforms into our ecosystem as possible. The following table shows the platforms and their chain IDs applicable to the NFT API endpoints. Please note that chainId is a required path parameter to be specified in every request.

NameChain ID
Ethereum Mainneteip155-1
Polygon PoSeip155-137
BNB Smart Chain Mainneteip155-56
Avalanche C-Chaineip155-43114
Arbitrum Oneeip155-42161

Refresh metadata

The constant and simultaneous resynchronization of metadata for all NFTs takes plenty of time. However, there is a method that helps to ensure the metadata remains actual. This involves considering the following points:

  • requests for unsynchronized NFTs or entire collections are automatically added to a resynchronization queue
  • the NFT collections in high demand are given a higher priority
  • the more requests made for a specific item, the higher its position in the queue


Please note that only one request from each user will affect the item's position in the queue.

The Refresh Metadata Endpoint

To save time and processing power, users can resynchronize the metadata of a particular NFT instead of the entire collection. After the resync, a notification is sent, indicating that the updated NFT metadata can be retrieved using the Token Metadata endpoint.