onesource.io

Latest Ethereum block height - current chain tip via eth_blockNumber

Fetch an Ethereum block header and transaction hashes by number, tag, or hex via eth_getBlockByNumber

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

Estimate the gas a transaction will consume via eth_estimateGas before signing it

Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on

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)

NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)

Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)

Simulate a read-only Ethereum contract call via eth_call - no transaction sent

Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode

ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet

ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC

ERC20 Transfer logs via eth_getLogs - decoded sender, recipient, and amount for a token or wallet

ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds

List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)

Live wallet balance - native ETH plus any ERC20 tokens in one call via eth_getBalance and balanceOf on OneSource Ethereum RPC

Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent

Read a raw storage slot from any Ethereum contract via eth_getStorageAt

Full Ethereum transaction details by hash via eth_getTransactionByHash - from, to, value, calldata, block

Pending block - transactions not yet mined, via eth_getBlockByNumber("pending")

Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range

Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)

Contract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support

Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy

Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction

Deepstate, the on-chain order-book exchange on Robinhood Chain. Order-book snapshot for a market, bids descending and asks ascending, with live resting size per level.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Wallets past their reportable dormancy window, ranked by the bounty an outside reporter could claim for flagging them. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to buy a Branch or license right now, bundled into one call.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. OHLC price candles for the STANDARD/ETH pool, priced in ETH per STANDARD.

Deepstate, the on-chain order-book exchange on Robinhood Chain. OHLCV candles for a market.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Governance and parameter-change history, queued changes awaiting effect, feature switches, and guardian pause state. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to buy into a new charter right now, bundled into one call.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Charters, optionally filtered by owner. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. How concentrated Charter and Branch ownership is across wallets, including a standard concentration score and a genesis-versus-auction breakdown.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Chain-read protocol constants: base rate, epoch length, floors, and where each one was last read from.

Deepstate, the on-chain order-book exchange on Robinhood Chain. Gas spent resting and cancelling orders for a market.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Current exit-pressure gauge across the reserve. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Latest expansion and contraction vault WETH balances, plus protocol-owned liquidity once observed on-chain. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Latest supply ledger: cumulative minted and burned totals, circulating supply, and max supply. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. The current epoch's regime (expansion or contraction), signal, policy multiplier, net ETH flow and STANDARD issuance, plus time to epoch close. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Current Dutch-auction quotes for the daily STANDARD license auction and the ETH charter auction: price now, floor, last sale, and whether a computed price is available. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. A snapshot of reserve backing: vault ETH balances, other reserve-asset holdings, and ETH backing per circulating STANDARD token. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Per-day history for the license or charter Dutch auction: open price, floor, close price, and how much sold each day. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

Deepstate, the on-chain order-book exchange on Robinhood Chain. Depth heatmap - resting order size by price level over time for a market.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Days of Issuance: how the current license price compares to the pace of new-Branch issuance.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Wallet last-activity records, flagged reportable once past the dormancy window.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Epoch history and boundaries. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Raw protocol event feed, newest first.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to exit a charter's branches right now, bundled into one call.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. How the reserve's exit fee changes across a range of withdrawal sizes, checked two ways: a live contract read and this service's own formula. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. A current-pace projection of the reserve's exit fee assuming no further withdrawals, day by day until it reaches the minimum rate. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Backing-ratio history, joined against circulating supply as of each snapshot block. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Vault snapshot history. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Supply ledger history. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Exit-pressure history. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Hourly ETH in/out and net flow through the STANDARD/ETH pool. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Today's Branch license cost in ETH, compared against the charter auction's own price to show which path costs less. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Live Branch license auction state, read straight from the chain.

Deepstate, the on-chain order-book exchange on Robinhood Chain. Per-maker time-at-top, notional rested, fills, and maker rewards earned for a market (token varies by market; see /deepstate/v1/markets).

Deepstate, the on-chain order-book exchange on Robinhood Chain. Lists the markets this service serves with their token layout (base, quote, token0/token1, decimals).

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. A current-pace projection of the Central Bank's policy multiplier and issuance rate if the current epoch's net flow direction holds until close. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Simulates keep, selective, and aggressive Branch-expansion strategies over a horizon, seeded from this API's own live routes. A simulation for exploring tradeoffs, not a forecast.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Latest AMM pool state: price, tick, liquidity, reserves. reserve_eth_raw and reserve_std_raw are 18-decimal token amounts; divide them by 1e18. sqrt_price_x96_raw is Q64.96, and liquidity_raw is Uniswap liquidity rather than a token amount.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Whether the contraction vault's next buyback tick can fire, its ETH capacity, cooldown remaining, and recent executed ticks. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Cumulative STANDARD issuance against its budget, the current issuance rate, and a current-pace projection of when the budget runs out. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Auction sale history, newest first. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. The launch tax hook's current buy and sell rates, its decay schedule, and a projection of where the rate is headed. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

Deepstate, the on-chain order-book exchange on Robinhood Chain. Rolling 24h / 7d / 30d volume and price change for a market.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Summary across reserve branches. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

Deepstate, the on-chain order-book exchange on Robinhood Chain. Trade tape for a market, newest first.