GET/api/chain/pending Pending Ethereum block - mempool transactions not yet mined, via eth_getBlockByNumber("pending") | — | — | $0.01 |
GET/api/chain/erc721-tokens List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call) | — | — | $0.008 |
GET/api/chain/nft-metadata NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC) | — | — | $0.008 |
GET/api/chain/tx/{hash} Full Ethereum transaction details by hash via eth_getTransactionByHash - from, to, value, calldata, block | — | — | $0.008 |
GET/api/chain/call Simulate a read-only Ethereum contract call via eth_call - no transaction sent | — | — | $0.005 |
GET/api/chain/contract/{address} Contract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support | — | — | $0.005 |
GET/api/chain/ens/{input} ENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC | — | — | $0.005 |
GET/api/chain/erc20-transfers ERC20 Transfer logs via eth_getLogs - decoded sender, recipient, and amount for a token or wallet | — | — | $0.005 |
GET/api/chain/events Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range | — | — | $0.005 |
GET/api/chain/proxy/{address} Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy | — | — | $0.005 |
GET/api/chain/receipt/{hash} Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction | — | — | $0.005 |
GET/api/chain/storage Read a raw storage slot from any Ethereum contract via eth_getStorageAt | — | — | $0.005 |
GET/api/chain/estimate-gas Estimate the gas a transaction will consume via eth_estimateGas before signing it | — | — | $0.004 |
GET/api/chain/allowance ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet | — | — | $0.003 |
GET/api/chain/block/{number} Fetch an Ethereum block header and transaction hashes by number, tag, or hex via eth_getBlockByNumber | — | — | $0.003 |
GET/api/chain/code/{address} Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode | — | — | $0.003 |
GET/api/chain/erc1155-balance ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds | — | — | $0.003 |
GET/api/chain/erc20-balance ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC | — | — | $0.003 |
GET/api/chain/live-balance Live wallet balance - native ETH plus any ERC20 tokens in one call via eth_getBalance and balanceOf on OneSource Ethereum RPC | — | — | $0.003 |
GET/api/chain/nft-owner Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call) | — | — | $0.003 |
GET/api/chain/nonce/{address} Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent | — | — | $0.003 |
GET/api/chain/total-supply Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call) | — | — | $0.003 |
GET/api/chain/block-number Latest Ethereum block height - current chain tip via eth_blockNumber | — | — | $0.001 |
GET/api/chain/chain-id Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on | — | — | $0.001 |
GET/api/chain/network-info Ethereum network info - chain ID, block height, and gas price in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice) | — | — | $0.001 |