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Overview

Bitquery API offers access to indexed data from the Ethereum blockchain through the ethereum schema. This schema is specifically designed to enable blockchain data retrieval via GraphQL API for developers.

The ethereum schema contains various types of queries, including block, transaction, event, transactions, transfers, and more. These queries can be used to retrieve blockchain data, such as block information, transaction details, events, token transfers, and other relevant information.

To retrieve data from the Ethereum blockchain, you need to provide the network argument with the value ethereum as shown below:

query {
  ethereum(network: ethereum){
    __typename
  }
}
info

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Let's dive in and explore the Ethereum data available through Bitquery API.

Ethereum was the first widely adopted smart contract platform: ETH pays for gas, ERC-20 tokens power DeFi and payments, and ERC-721 (and related standards) anchor NFT markets. The ecosystem remains one of the largest on-chain economies. Bitquery’s ethereum schema exposes blocks, transactions, transfers, smart contracts, DEX trades, coinpath, and active addresses for both raw chain analytics and market intelligence.

What You Can Query​

  • Blocks — number, timestamp, fee recipient under proof-of-stake, base fee under EIP-1559, gas used and limits
  • Transactions — hashes, from and to, nonces, gas price or effective gas price, and success or revert status
  • Transfers — ETH, ERC-20, and major NFT transfers with amounts, contract addresses, and USD pricing where available
  • Smart contracts — creations, method calls, and internal transactions as indexed from execution traces
  • DEX trades — swaps, pools, and volume from integrated decentralized exchanges
  • Coinpath — graph-style tracing of assets across many hops and intermediate contracts
  • Active addresses — engagement metrics derived from indexed sends, receives, and contract interactions

Common Use Cases​

  • DeFi and market data — rank tokens, pools, and DEX volume for research terminals or trading products
  • Institutional reporting — tie transfers, balances, and active addresses to treasury or compliance views
  • Investigations — use coinpath to map how ETH or tokens moved through mixers, bridges, or nested contracts
  • Enterprise compliance and AML — regulated entities can automate transaction monitoring, sanctions screening, and audit trails by combining coinpath with address and contract metadata across ERC-20 flows
  • Real-world asset (RWA) tokenization — track issuance, transfers, and holder distribution of tokenized securities, bonds, or real-estate assets deployed as smart contracts on Ethereum