Blockchain Data API
Choose indexed blockchain datasets by task and current chain coverage, then use the API reference for authentication, parameters and responses.
| Dataset | Available chains | CU per Call |
|---|---|---|
| Blocks Read confirmed block records by number or hash, with timestamps, transaction counts, and gas metrics. 10 chains | 10 chains | 5 CU |
| Transactions Look up a transaction by hash with its receipt event logs, or list the transactions included in a block. 10 chains | 10 chains | 5 - 10 CU |
| Address Transactions Browse transaction history for an address within a block range, filterable by sender, receiver, or both. 10 chains | 10 chains | 25 CU |
| Transfers Query indexed token transfers by address or token contract. Check chain and token-standard coverage, cursor pagination and CU pricing. 10 chains | 10 chains | 25 CU |
| Token Metadata Fetch token contract metadata such as symbol, name, decimals, and total supply, for one contract or in batch. 10 chains | 10 chains | 5 - 10 CU |
| Balances Query non-zero indexed ERC-20 balances for an address. Check supported chains, cursor pagination and CU pricing, then follow the wallet asset guide. No chains currently support this dataset | No chains currently support this dataset | 25 CU |
| Holders List ERC-20 token holders ordered by balance, useful for concentration and distribution analysis. No chains currently support this dataset | No chains currently support this dataset | 25 CU |
| NFTs Look up the owner of a specific NFT, or list the NFTs held by an address across ERC-721 and ERC-1155. No chains currently support this dataset | No chains currently support this dataset | 5 - 25 CU |
| DEX Swaps Query DEX swap execution records by liquidity pool or token for on-chain trading analysis. 1 chain | 1 chain | 25 CU |
| DEX Prices Get daily volume-weighted average price and trading volume for DEX tokens over a date range. No chains currently support this dataset | No chains currently support this dataset | 15 CU |
| Tokenized Stocks Stock tokens with daily holder counts, transfers, mint and burn, and DEX swap counts from the stocks Data API. On-chain metrics, not stock quotes. 1 chain | 1 chain | 15 CU |
| Traces Fetch historical callTracer execution trace trees for a whole block or a single transaction. 1 chain | 1 chain | 200 CU |
| Data Freshness Check the latest block height, day, and head-lag metrics for each public dataset. 10 chains | 10 chains | 1 CU |