Introduction

Say goodbye to cumbersome on-chain data wrangling and endless hours spent on log parsing. We get you going immediately with the chain data, enriched with off-chain sources. What you get is clean, quality controlled NFT trade and mint datasets.

Provided as a simple, layered API of clean and indexed NFT data encompassing tokes, collections, marketplaces and wallets. We support the largest NFT ecosystems with the highest possible data accuracy. Ethereum, Solana and Polygon are live. More chains are coming very soon.

Here is a quick walkthrough on what you can build with our API:

Coverage

We parse, index and enrich billions of NFT transactions within seconds of block confirmation, with 50+ marketplaces (including AMMs, OTCs and aggregators), 200K+ collections and millions of tokens.

Start Here

If you have a more specific use-case in mind, definitely see below for pointers to endpoints relevant for your use-case.

Definitions

Trade: Our core data model is a "trade". This includes humanized primary sales(mints), secondary market sales and transfers.

Collection: NFT collection. We index any non-fungible token standard in chains we support (e.g. for Ethereum this is ERC721 or ERC1155). We count one-of-one's also as collections with a single NFT in our dataset.

Activity: An activity for a collection or a token is either a trade or a listing.

Listing: Ask orders. This is off-chain data that we aggregate from major marketplaces in the chains we support.

Insights: This is no fat, valuable metrics derived for a collection/token/wallet from onchain and offchain data. The data points are ever expanding and therefore the schema updates can be frequent for insight models.

Chain IDs: Chain IDs are symbols for mainnet chains.

Currently supported chains:

1. Ethereum: eth
2. Solana: sol
3. Polygon: matic

And more to come!

Structure

The API is structured in a layered way. This means you can access our core humanized NFT trade data as well as higher level data points such as collection insights derived from lower levels.

Use-cases

Depending on your use-case, certain endpoints are more optimized than the others:

Consumer products

If you are building consumer dapps/web apps such as NFT marketplaces you can use the Collection and Token endpoints to consume enriched, ready-to-use NFT data.

Accounting / risk products

Our Wallet endpoints are specifically designed for this purpose along with our streaming API for real-time transaction monitoring.

Authentication

You will need an API key to make calls to Zash API. Simply add X-API-KEY={Your API Key} to your request header. Note that we do NOT support appending API key in the query parameter.

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You are recommended to store the API key securely in your own backend and use a proxy to insert the key into the request URL.

To get a demo API key, please fill this form.

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Rate limit

The rate limit for demo API key user is 1000 calls per second.