Listing ID: x402:a2c23d160358e6224b7d3e2fdd84dc479085f91431ac372ad3503e3973fbb548
ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds
Declared: 0.003 USDC / call (eip155:8453)
View details Info 80/100
Applications, APIs & agent tools
Find the right tool for your task.
Compare products, then choose the interface that fits your workflow.
Task filter: Connect an API to an agent · Remove task filter
37,016 results · Reset
Listing ID: x402:013298679f55a905d17f1d539cc14c24cb95c95f74308f0c608275351270347d
ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC
Declared: 0.003 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:d44ead22cad2120b7b56c19605bdfd6946e84ecc1bfce87cad089a0ee0475ec7
ERC20 Transfer logs via eth_getLogs - raw Transfer events for a token or wallet
Declared: 0.005 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:126a905044c745a42150c50aab40bf5344cc75e5456ed5d455fda7eef71d64fc
List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)
Declared: 0.008 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:432dd5a1ad4af849cdb9b3905d15d0adb59074722cdf708cafbf004267267811
Estimate the gas a transaction will consume via eth_estimateGas before signing it
Declared: 0.004 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:f1b2e28cbb8777cf2d5cae82849dcd6fe802b11e60e3cdb74fb519e773aeda9a
Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range
Declared: 0.005 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:5c3fefbae9d7dc168b2092d73cae1f38b0bc7db659a921d6f25f72221d7cc27d
Live wallet balance - native ETH plus up to 20 caller-supplied ERC20 tokens in one bounded RPC batch
Declared: 0.003 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:4b35ed7197132a7aa8bf59279fd568889cedafdcd7fc74514b8cb0614d6c5410
EVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_block…
Declared: 0.001 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:2cc1c385878ba7e845673280a35abbb2d5d9f5d23f722b90ef3cd475e78e6acd
NFT metadata for ERC721 or ERC1155 tokens via eth_call, with IPFS, Arweave, data URI, and public HTTP(S) resolution
Declared: 0.008 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:8186e9cafd659cfe40945dcf6dd33d6afd2d29f7d28ab3c841b71834394cbcc7
Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)
Declared: 0.003 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:7aef6597987c56ca522cdbddeb8af280f957eb2d80f80f393b0780ac62be5470
Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent
Declared: 0.003 USDC / call (eip155:8453)
View details Info 80/100
Listing ID: x402:455600a2beeff794e1c2a87e67926b645427c995d78ab356a7fa602f3b137c36
Pending block - transactions not yet mined, via eth_getBlockByNumber("pending")
Declared: 0.01 USDC / call (eip155:8453)
View details Info 80/100
One product card can include several interfaces. Imported listings keep their source IDs; similar titles may describe different tools. Imported categories and prices are not independently verified. About the catalogue