{"total":1621,"counts":{"external":179,"internal":1442},"scope":"all","query":null,"results":[{"name":"https://api.onesource.io/api/chain/block-number","description":"Latest Ethereum block height - current chain tip via eth_blockNumber","url":"https://api.onesource.io/api/chain/block-number","method":"GET","price_usd":0.001,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/receipt/:hash","description":"Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction","url":"https://api.onesource.io/api/chain/receipt/:hash","method":"GET","price_usd":0.005,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/ens/:input","description":"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","url":"https://api.onesource.io/api/chain/ens/:input","method":"GET","price_usd":0.005,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/network-info","description":"EVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice + latest block header)","url":"https://api.onesource.io/api/chain/network-info","method":"GET","price_usd":0.001,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/nonce/:address","description":"Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent","url":"https://api.onesource.io/api/chain/nonce/:address","method":"GET","price_usd":0.003,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/code/:address","description":"Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode","url":"https://api.onesource.io/api/chain/code/:address","method":"GET","price_usd":0.003,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/erc20-transfers","description":"ERC20 Transfer logs via eth_getLogs - decoded sender, recipient, and amount for a token or wallet","url":"https://api.onesource.io/api/chain/erc20-transfers","method":"GET","price_usd":0.005,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/contract/:address","description":"Contract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support","url":"https://api.onesource.io/api/chain/contract/:address","method":"GET","price_usd":0.005,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/block/:number","description":"Fetch an Ethereum block header and transaction hashes by number, tag, or hex via eth_getBlockByNumber","url":"https://api.onesource.io/api/chain/block/:number","method":"GET","price_usd":0.003,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/pending","description":"Pending block - transactions not yet mined, via eth_getBlockByNumber(\"pending\")","url":"https://api.onesource.io/api/chain/pending","method":"GET","price_usd":0.01,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/erc721-tokens","description":"List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)","url":"https://api.onesource.io/api/chain/erc721-tokens","method":"GET","price_usd":0.008,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/erc20-balance","description":"ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC","url":"https://api.onesource.io/api/chain/erc20-balance","method":"GET","price_usd":0.003,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/tx/:hash","description":"Full Ethereum transaction details by hash via eth_getTransactionByHash - from, to, value, calldata, block","url":"https://api.onesource.io/api/chain/tx/:hash","method":"GET","price_usd":0.008,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/nft-owner","description":"Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)","url":"https://api.onesource.io/api/chain/nft-owner","method":"GET","price_usd":0.003,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/storage","description":"Read a raw storage slot from any Ethereum contract via eth_getStorageAt","url":"https://api.onesource.io/api/chain/storage","method":"GET","price_usd":0.005,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/total-supply","description":"Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)","url":"https://api.onesource.io/api/chain/total-supply","method":"GET","price_usd":0.003,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/chain-id","description":"Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on","url":"https://api.onesource.io/api/chain/chain-id","method":"GET","price_usd":0.001,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/events","description":"Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range","url":"https://api.onesource.io/api/chain/events","method":"GET","price_usd":0.005,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/allowance","description":"ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet","url":"https://api.onesource.io/api/chain/allowance","method":"GET","price_usd":0.003,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."},{"name":"https://api.onesource.io/api/chain/erc1155-balance","description":"ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds","url":"https://api.onesource.io/api/chain/erc1155-balance","method":"GET","price_usd":0.003,"network":"eip155:8453","source":"external","note":"Requires a funded key. Pass-through cost + 10%."}]}