TraceFast

/api/v1/chains/1/addresses/:address/counterparties

TraceFast knowledge graph: top counterparties of an Ethereum address, current or as of a block. Up to 100 addresses it interacts with most, ranked by successful transactions across top-level calls, internal calls and token transfers, each with transaction counts and first/last block. Query: block (historical cut, optional), limit (1..100). Docs: https://docs.tracefast.xyz/api/address-counterparties

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/blocks/:number

TraceFast live Ethereum data: one block by height — its header (hash, parent, roots, fee recipient, gas, base fee, blob gas) and the totals of what it contains: transactions by outcome, contract creations, blob transactions, logs, withdrawals, value moved, fees burnt and paid. Path number: Block height. Docs: https://docs.tracefast.xyz/api/block.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/blocks/:number/addresses

TraceFast live Ethereum data: every account whose own state — native balance, nonce or code — changed in one block, with what changed and the balance before and after, in address order. Path number: Block height. Query limit: 1..=100, default 25; cursor: `nextCursor` of the previous page. Docs: https://docs.tracefast.xyz/api/block-addresses.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/blocks/:number/authorizations

TraceFast live Ethereum data: every EIP-7702 authorization-list entry carried by the transactions of one block — the delegation target, the chain id and nonce it was signed for, and the signature — in transaction order and then list order. Path number: Block height. Query limit: 1..=100, default 25; cursor: `nextCursor` of the previous page. Docs: https://docs.tracefast.xyz/api/block-authorizations.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/blocks/:number/transactions

TraceFast live Ethereum data: the transactions of one block in their order within the block, each with sender, recipient, value, gas, fee fields and the receipt's outcome. Paged by an opaque cursor: pass `nextCursor` back as `cursor` until it is absent. Path number: Block height. Query limit: 1..=100, default 25; cursor: `nextCursor` of the previous page. Docs: https://docs.tracefast.xyz/api/block-transactions.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/blocks/:number/withdrawals

TraceFast live Ethereum data: the validator withdrawals paid out in one block — index, validator, recipient and amount — in withdrawal-index order. A block holds at most 16. Optionally narrowed to one validator or one recipient. Path number: Block height. Query: limit, cursor, validatorIndex, address (see docs). Docs: https://docs.tracefast.xyz/api/block-withdrawals.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/blocks/latest

TraceFast live Ethereum data: the most recent block, with its header and the totals of what it contains — transaction counts by outcome, gas, fees, value moved, withdrawals. The same shape as `blocks/{number}`. Docs: https://docs.tracefast.xyz/api/block-latest.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

1 call · 1 payer · last 30 days

/api/v1/chains/1/consensus/current

TraceFast live Ethereum data: the validator activation and exit queues as of the newest sampled epoch — how many validators wait on each side, how much capital they hold, the churn rates, the trailing 7-day and 30-day averages, recent exit and deposit flow, and the active set's total effective balance. Docs: https://docs.tracefast.xyz/api/consensus-current.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

1 call · 1 payer · last 30 days

/api/v1/chains/1/consensus/proposers

TraceFast live Ethereum data: which validators proposed the most blocks over a window, or — grouped by withdrawal address — which payout addresses their proposals sum to. Query period: `7d` (default), `30d`, `90d`, `1y` or `all`; groupBy: `validator` (default) or `address`; limit: Rows to return, 1..=100, default 20. Docs: https://docs.tracefast.xyz/api/consensus-proposers.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/consensus/queues

TraceFast live Ethereum data: the validator activation and exit queues now, plus one closing point per UTC day for the most recent `limit` days (up to 90), newest first. Query limit: Most recent daily points to return, 1..=90, default 30. Docs: https://docs.tracefast.xyz/api/consensus-queues.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

1 call · 1 payer · last 30 days

/api/v1/chains/1/consensus/validators/:index/withdrawals

TraceFast live Ethereum data: the withdrawals paid out for one validator — block, global withdrawal index, the address paid and the amount — newest first, inside a block window of at most 216 000 blocks (about 30 days). Path index: The validator's index in the consensus registry. Query limit: 1..=100, default 25; cursor: `nextCursor` of the previous page; fromBlock: Inclusive lower block bound; toBlock: Inclusive upper block bound. Docs: https://docs.tracefast.xyz/api/validator-withdrawals.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/contracts/:address

TraceFast live Ethereum data: one deployed contract — the hash and size of its current code, what the code exposes (ERC-20 view functions, ERC-165, an EIP-1167 minimal proxy and its target), the proxy pattern detected in it, and its lifecycle: the deploying account, the origin account, the creating transaction, code changes and self-destruction. Path address: The contract address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/contract.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/contracts/:address/bytecode

TraceFast live Ethereum data: the current runtime bytecode of a contract as hex, with its code hash and a structural fingerprint that is equal across contracts sharing the same logic. Up to 24 576 bytes of code. An address with no indexed code answers 404. Path address: The contract address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/contract-bytecode.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

1 call · 1 payer · last 30 days

/api/v1/chains/1/contracts/:address/events

TraceFast live Ethereum data: the event logs a contract emitted, newest first, each with its topics and data and, where the signature is known, the decoded event and its arguments. Path address: The contract address, `0x`-prefixed, 40 hex characters, any case. Query: limit, cursor, topic0, fromBlock, toBlock (see docs). Docs: https://docs.tracefast.xyz/api/contract-events.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/contracts/:address/proxy

TraceFast live Ethereum data: the implementations a proxy contract has been observed delegating to — from its EIP-1167 bytecode, its EIP-1967 implementation or beacon slot, or its OpenZeppelin v1 slot — newest first, each with the blocks it was seen at and whether it has since been replaced. Path address: The proxy contract address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/contract-proxy.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/contracts/:address/selectors

TraceFast live Ethereum data: the 4-byte function selectors found in a contract's bytecode, each resolved to a known signature and name where one exists, with how many known signatures share the selector. `decodeStatus` says how confident each resolution is. Path address: The contract address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/contract-selectors.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

1 call · 1 payer · last 30 days

/api/v1/chains/1/entities/:address

TraceFast live Ethereum data: one address as the chain sees it now — how it exists (an account whose state was touched, or an address only ever mentioned by other operations), whether it holds code, its native balance and nonce, when it was first mentioned and last active in any form, and its direct-transaction counters. Path address: The address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/address.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/activity

TraceFast live Ethereum data: three different questions about when an address was active, each answered separately — when it was first mentioned anywhere on chain; when its own account state last changed and how many times it changed; and the newest block at which it took part in anything (a top-level transaction, a token transfer, an emitted log, a value-bearing call), with the sources that answer was… Path: address. Docs: https://docs.tracefast.xyz/api/address-activity.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/attributes

TraceFast knowledge graph: what an Ethereum address is, as proven facts — wallet or contract, proxy and upgradeable or not, a token and its standard, and for a token contract whether it can pause, mint or blacklist and whether it ever did. Each fact names the block it was evaluated at; an absent fact is not proven. Ethereum mainnet only. Path address: 0x-prefixed, 40 hex. Attribute dictionary: https://docs.tracefast.xyz/api/address-attributes.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

2 calls · 1 payer · last 30 days

/api/v1/chains/1/entities/:address/attributes/:attribute_id/proof

TraceFast knowledge graph: the evidence behind one proven attribute of an address — the facts that were checked with their expected and observed values, the conditions that had to be false, the sources the evidence was read from, and the block the evaluation was pinned to. Path address: The address, `0x`-prefixed, 40 hex characters, any case; attribute_id: The attribute id, `family:name`, as listed by the attributes method. Docs: https://docs.tracefast.xyz/api/address-attribute-proof.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/attributes/at-block

TraceFast knowledge graph: the attributes an address held at the end of one block, each with the window it held for. Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query block: The block to answer about. Docs: https://docs.tracefast.xyz/api/address-attributes-at-block.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/attributes/history

TraceFast knowledge graph: every attribute interval an address has held, oldest first — when it became a contract, when its code was removed, when it first held state. Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query limit: 1..=500, default 100. Docs: https://docs.tracefast.xyz/api/address-attribute-history.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/balance-history

TraceFast live Ethereum data: the address's native balance at the end of each day it changed, oldest first, with the net change and the number of balance-changing events per day, the USD value at each closed day's last hour, and totals over the window. Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query limit: Most recent days with a balance change to return, 1..=365, default 90. Docs: https://docs.tracefast.xyz/api/address-balance-history.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/counterparties

TraceFast knowledge graph: top counterparties of an Ethereum address, current or as of a block. Up to 100 addresses it interacts with most, ranked by successful transactions across top-level calls, internal calls and token transfers, each with transaction counts and first/last block. Path address: 0x-prefixed, 40 hex. Query block: integer, state at the end of this block, absent = current; limit: integer 1..100, default 100. Docs: https://docs.tracefast.xyz/api/address-counterparties.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/daily-activity

TraceFast live Ethereum data: for each day in a window, how many blocks changed the address's own account state and which kind of change it was (balance, nonce, code, creation). Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query period: `30d`, `90d` (default) or `365d`. Docs: https://docs.tracefast.xyz/api/address-daily-activity.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/internal-transfers

TraceFast live Ethereum data: the value-carrying call frames an address sent or received inside transactions, newest first — each with its position in the call tree, its depth, the kind of call, the value it moved and its own outcome. Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query: limit, cursor, direction, fromBlock, toBlock (see docs). Docs: https://docs.tracefast.xyz/api/entity-internal-transfers.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/portfolio

TraceFast live Ethereum data: everything an address holds, valued in USD — token balances and native ETH, up to 100 positions by USD value, plus totalUsd / pricedCount / hiddenCount over the whole holding. Path address: 0x-prefixed, 40 hex. Query block: integer, state at the end of this block, absent = current; limit: integer 1..100, default 100. Docs: https://docs.tracefast.xyz/api/address-portfolio.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/relations

TraceFast knowledge graph: the relations an address holds now — which implementation a proxy points at, which beacon it reads, who administers it, where an account has delegated, which lending market lists a token — as the subject (`direction=subject`: what it points at, default) or as the object (`direction=object`: who points at it). Path: address. Query: direction, attributeId, limit, cursor (see docs). Docs: https://docs.tracefast.xyz/api/address-relations.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/relations/:attribute_id/:object/proof

TraceFast knowledge graph: the evidence behind one proven relation between two addresses — the facts checked with their expected and observed values, the conditions that had to be false, the sources read, and the block the evaluation was pinned to. Path: address, attribute_id, object. Docs: https://docs.tracefast.xyz/api/address-relation-proof.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/relations/at-block

TraceFast knowledge graph: the relations an address was the subject of at the end of one block — which implementation a proxy pointed at, which beacon it read, who administered it, where an account had delegated — each with the window it held for. Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query block: The block to answer about. Docs: https://docs.tracefast.xyz/api/address-relations-at-block.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/relations/history

TraceFast knowledge graph: every relation interval an address has held, oldest first — as the subject (`direction=subject`: what it pointed at, default) or as the object (`direction=object`: who pointed at it). Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query direction: `subject` (default) or `object`; limit: 1..=500, default 100. Docs: https://docs.tracefast.xyz/api/address-relation-history.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

1 call · 1 payer · last 30 days

/api/v1/chains/1/entities/:address/token-transfers

TraceFast live Ethereum data: the token transfers an address sent or received, newest first — the token as its contract declares itself, the raw amount (unscaled), the parties, the transaction that emitted it and who sent that transaction, which on a router or a batch disburser is another party entirely. Path: address. Query: limit, cursor, direction, token, fromBlock, toBlock (see docs). Docs: https://docs.tracefast.xyz/api/entity-token-transfers.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/tokens/:token/balance

TraceFast live Ethereum data: balanceOf(address) for one token at the end of a block, read from contract storage. A token outside the covered set is refused (422), never a fake zero. Path address and token: 0x-prefixed, 40 hex. Query block: integer, state at the end of this block, absent = current. Docs: https://docs.tracefast.xyz/api/address-token-balance.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/entities/:address/transactions

TraceFast live Ethereum data: the transactions an address sent or received, newest first — each with sender, recipient, value, fee, the called function where its selector is known, the receipt's outcome, and which side of it this address is on (`sender`, `receiver`, or `self` when it is both). Path: address. Query: limit, cursor, direction, status, fromBlock, toBlock (see docs). Docs: https://docs.tracefast.xyz/api/entity-transactions.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/resolve

TraceFast live Ethereum data: what a reference means. An address (`0x` + 40 hex) is described — the name TraceFast shows for it, how it presents it, what kind of address it is, its token identity. Query q: What to resolve: an address (`0x` + 40 hex, any case), or a name, ENS…; limit: 1..=20, default 10. Docs: https://docs.tracefast.xyz/api/entity-resolve.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/risk/blacklists/:address

TraceFast risk data: is this Ethereum address on a token issuer's on-chain blacklist? One row per issuer contract that ever listed it (USDC, USDT, any token with a blacklist) — listed now or not, the issuer's weight (`authorityTier`), first and latest events — plus the issuers that froze or destroyed its funds. Read from the issuers' own contracts, not from sanctions lists. Path address: `0x`-prefixed. Docs: https://docs.tracefast.xyz/api/risk-blacklist-status.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

1 call · 1 payer · last 30 days

/api/v1/chains/1/risk/blacklists/:address/events

TraceFast live Ethereum data: every blacklist event any issuer contract recorded about the address — listed (`add`), unlisted (`remove`) or enforced against (`enforce`: funds destroyed or frozen) — newest first, with the issuer and its weight. Path address: The address, `0x`-prefixed, any case. Query: limit, cursor, issuerContract, action (see docs). Docs: https://docs.tracefast.xyz/api/risk-blacklist-events.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/tokens/:token

TraceFast live Ethereum data: one token contract — its standard as observed from its events (`erc20`, `erc721`, `erc1155`), the symbol, name and decimals it declares (verbatim, not verified), its all-time transfer count and, where indexed, its all-time distinct holder count. Path token: The token contract address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/token.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/tokens/:token/holders

TraceFast live Ethereum data: the largest current holders of a token contract. Up to 100 holders in descending balance order, balance in the token's smallest unit, plus holderCount — how many addresses hold a positive balance now. Path token: contract address, 0x-prefixed, 40 hex. Query limit: integer 1..100, default 100. Docs: https://docs.tracefast.xyz/api/token-holders.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/tokens/:token/transfers

TraceFast live Ethereum data: the transfer events of one token contract, newest first — the parties, the raw amount (unscaled) or token id, the event kind, the transaction that emitted it and who sent that transaction, which on a router or a batch disburser is another party entirely. Path: token. Query: limit, cursor, from, to, eventType, fromBlock, toBlock (see docs). Docs: https://docs.tracefast.xyz/api/token-transfers.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/tokens/stats

TraceFast live Ethereum data: how many token contracts, transfer events and distinct holders the chain holds, in total and per standard (ERC-20, ERC-721, ERC-1155, ERC-777, ERC-4626). Recomputed daily. Docs: https://docs.tracefast.xyz/api/token-stats.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/traces/:hash

TraceFast live Ethereum data: every call frame a transaction executed, the order it ran — the caller and target of each, the kind of call, the value and gas it moved, its own outcome, and why it reverted where it did. Path hash: Transaction hash, `0x`-prefixed, 64 hex characters, any case. Query: includeCalldata, limit (see docs). Docs: https://docs.tracefast.xyz/api/trace.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/traces/:hash/frames

TraceFast live Ethereum data: the whole call tree of a transaction, frame by frame in the order it ran, paged — no 1 000-frame cap. Path hash: Transaction hash, `0x`-prefixed, 64 hex characters, any case. Query limit: 1..=100, default 50; cursor: `nextCursor` of the previous page. Docs: https://docs.tracefast.xyz/api/trace-frames.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/transactions/:hash

TraceFast live Ethereum data: one transaction by hash — sender, recipient, value, nonce, type, gas limit and gas used, the fee fields of its type and the price actually paid per gas, the receipt's outcome and log count, and its position (block and index). Path hash: Transaction hash, `0x`-prefixed, 64 hex characters, any case. Docs: https://docs.tracefast.xyz/api/transaction.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/transactions/:hash/events

TraceFast live Ethereum data: the event logs a transaction emitted, in emission order, each with the emitting contract, topics and data, and — when the event signature is known — the decoded event name and arguments with a stated confidence. Path hash: Transaction hash, `0x`-prefixed, 64 hex characters, any case. Query limit: 1..=100, default 25; cursor: `nextCursor` of the previous page. Docs: https://docs.tracefast.xyz/api/transaction-events.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/transactions/:hash/failures

TraceFast live Ethereum data: the failed call frames of a reverted transaction — for each, its position in the call tree, caller and target, the kind of failure (revert, panic, custom error, out of gas, …), the revert payload with its selector, and the error name when the selector is known. Path hash: Transaction hash, `0x`-prefixed, 64 hex characters, any case. Docs: https://docs.tracefast.xyz/api/transaction-failures.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities

/api/v1/chains/1/transactions/:hash/storage-writes

TraceFast live Ethereum data: every contract storage slot a transaction wrote, in execution order — which contract's storage, which frame wrote it (with the address whose code ran, which on a `delegatecall` is not the storage owner), the slot, the value written, and the value the slot held before where that can be established. Path: hash. Query: limit, cursor (see docs). Docs: https://docs.tracefast.xyz/api/transaction-storage-writes.md

• blockchain
• ethereum
• address-intelligence
• labels
• entities