The Ultimate Onchain Data API

Build onchain products with limitless data, powered by our interpretation protocol.

Want to contribute to our interpretation protocol? Start Here.

Onchain information is disorganized and unreadable.

The quantity of onchain applications is increasing exponentially — no centralized entity will be able to organize everything.

To solve this problem, an open network of curators contribute to the Zapper Protocol — transforming onchain data and empowering builders with an easy to use API.

The Ultimate Onchain API

One API to access all DeFi positions, tokens, apps, NFT collections, and human-readable transaction feeds across 35+ chains 一 all available with a few lines of code.

Surface Token Balances

Surfaces onchain token balances held by an address. Learn More

Includes:

Real-time balance updates
Coverage of every token from memecoins to bluechips
Token metadata and prices

query {
    portfolio(addresses: ["0x..."]) {
      tokenBalances {
        key
        address
        network
        token {
          baseToken {
          address
          network
          symbol
          decimals
          imageUrl
        }
        balance
        balanceUSD
        balanceRaw
      }
      updatedAt
    }
  }
}

Our Metrics

22.91 Billion

Human-Readable Transactions

4,400

Position Interpreters

12,000

Transaction Interpreters

38

Chains Supported

An open interpretation layer, built by you.

We've created powerful tools allowing anyone to easily contribute and make blockchains human-readable. No coding is required.

Transaction Interpretation

Transaction Interpreters are used on onchain transactions to translate them into human-readable output, and augment them with contextual, and often off-chain, information.

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Position Interpretation

App Token Interpreters are used to index app-centric token balances for users. This can be loans, deposits, pools, etc... The majority of these tokens do not have a market price; rather, they are priced based on the tokens they are redeemable for.

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Coming Soon

Powered by $ZAP

The ZAP token is central to the protocol 一 serving as an incentive to interpret onchain information and as a payment for accessing its data.

Be a part of the movement

Join our community, and help us make blockchains readable to everyone!

Get Started