EVERY CAPABILITY
All capabilities
21 capabilities on 2 shelves · on api.onesource.io · every website
Data 14
Order book depth heatmap over time
Found by us · api.onesource.io
Data
Gives you resting order size by price level, over time, for a Deepstate market.
Per-maker stats for a Deepstate order book
Found by us · api.onesource.io
Data
Gives you per-maker time at top, notional rested, and fills for a Deepstate market.
Deepstate order gas-cost history
Found by us · api.onesource.io
Data
Gives you the gas cost of resting and cancelling orders on a Deepstate market over time.
Deepstate order-book market list
Found by us · api.onesource.io
Data
Lists the trading markets on Deepstate's on-chain order book, with their token details.
Ethereum chain ID lookup
Found by us · api.onesource.io
Data
Confirms which chain a network is by returning its chain ID.
EVM network info snapshot
Found by us · api.onesource.io
Data
Gives you a chain's ID, block height, gas price, and other network facts in one call.
Ethereum event log query
Found by us · api.onesource.io
Data
Queries a contract's event logs, filtered by topic and block range.
NFT metadata lookup
Found by us · api.onesource.io
Data
Resolves an NFT's metadata for you, following IPFS, Arweave, or HTTP links.
NFT collection holdings lookup
Found by us · api.onesource.io
Data
Lists every NFT a wallet owns in a specific collection.
Token total supply lookup
Found by us · api.onesource.io
Data
Gives you the total supply of an ERC-20 or ERC-721 token contract.
ERC-20 transfer log lookup
Found by us · api.onesource.io
Data
Gives you the raw ERC-20 Transfer events for a token or a wallet.
Live wallet balance
Found by us · api.onesource.io
Data
Gives you a wallet's native and token balances in one call.
Latest Ethereum block height
Found by us · api.onesource.io
Data
Gives you the current Ethereum chain tip block number.
ERC-20 token balance lookup
Found by us · api.onesource.io
Data
Gives you any ERC-20 token balance for an Ethereum wallet.
Checks & verification 7
Pending block of unmined transactions
Found by us · api.onesource.io
Checks & verification
Gives you the transactions in the current pending block, not yet mined.
Read a raw storage slot on a contract
Found by us · api.onesource.io
Checks & verification
Gives you the raw value stored in a specific slot of an Ethereum contract.
ERC1155 token balance for a wallet
Found by us · api.onesource.io
Checks & verification
Gives you how many copies of an ERC1155 token id a wallet holds.
Look up an ERC721 NFT's current owner
Found by us · api.onesource.io
Checks & verification
Gives you the current owner of an ERC721 NFT by its token id.
Estimate gas for a transaction before signing
Found by us · api.onesource.io
Checks & verification
Gives you the gas a transaction would consume before you sign it.
Simulate a read-only Ethereum contract call
Found by us · api.onesource.io
Checks & verification
Runs a read-only Ethereum contract call and gives you the result, with no transaction sent.
ERC20 allowance for an owner and spender
Found by us · api.onesource.io
Checks & verification
Gives you how much an approved spender can move from an ERC20 token owner's wallet.