One transaction

Open this transaction in TraceFast →

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. It is served from seconds after inclusion. New to transactions and gas? See transactions and gas on ethereum.org.

GET https://tracefast.xyz/api/v1/chains/1/transactions/{hash}

Parameter	In	Type	Notes
`hash`	path	string	`0x`-prefixed, 64 hex characters, any case

Access — an API key on the Enriched Data plan or higher (plans), or no key at all: pay per call with x402 at the same path on https://mpp.tracefast.xyz/api/v1, at the price its 402 states. As a tool for AI agents: get_transaction on the MCP server. Stable — see stability.

chains/1 is a literal: the method serves Ethereum mainnet data. Other chain ids answer 404 chain_not_supported. There are no query parameters — an unknown one is refused rather than ignored.

What it covers, and what it does not

The transaction and its receipt's outcome. Not the calls it made — that is the execution trace — and not the events it emitted — that is event logs of a transaction.
Not the input itself. methodId and inputSize describe it; the trace carries calldata heads on request.
status absent means "not known yet", never "failed". It appears once the receipt is available.

Response

200 application/json:

{
  "data": {
    "chainId": 1,
    "hash": "0x6bb3103eec4ca8f4a324bbab71dc84f533af7e6be11ab8b13d0d10333bb9abc5",
    "blockNumber": 25920000,
    "txIndex": 168,
    "timestamp": 1788718079,
    "from": "0x07d65f37f0b4e10070eb683e51ebce416eb5aa3a",
    "to": "0xb300000b72deaeb607a12d5f54773d1c19c7028d",
    "valueWei": "200000000000000",
    "methodId": "0x810c705b",
    "inputSize": 1316,
    "nonce": 205,
    "txType": 2,
    "gasLimit": "161763",
    "gasUsed": "104318",
    "maxFeePerGas": "126203752",
    "maxPriorityFeePerGas": "10000000",
    "effectiveGasPrice": "102963002",
    "status": 1,
    "logCount": 2
  },
  "meta": {
    "chain": "ethereum",
    "timestamp": 1789047732706,
    "cached": false,
    "asOfBlock": 25920000,
    "docs": "https://docs.tracefast.xyz/api/transaction"
  }
}

`data`

Field	Meaning
`chainId`	`1`, Ethereum mainnet
`hash`	transaction hash, lowercase
`blockNumber`, `txIndex`	the block that includes it and its index within that block
`timestamp`	Unix time of the block, seconds
`from`	sender
`to`	recipient. Absent for a contract creation
`valueWei`	ETH transferred, wei, decimal string
`methodId`	the first four bytes of the input — the function selector of a contract call. Absent when the input is shorter than four bytes
`inputSize`	size of the input, bytes
`nonce`	the sender's nonce
`txType`	`0` legacy, `1` EIP-2930, `2` EIP-1559, `3` EIP-4844 blob, `4` EIP-7702
`gasLimit`, `gasUsed`	gas limit and gas used by the receipt, decimal strings
`gasPrice`	declared gas price, wei — legacy and EIP-2930 types only
`maxFeePerGas`, `maxPriorityFeePerGas`	the EIP-1559 fee caps, wei — absent on types that do not carry them
`effectiveGasPrice`	the price actually paid per gas, wei. Absent only while the block's base fee is not yet available
`status`	`1` success, `0` failure. Absent while the receipt is not yet available
`logCount`	receipt logs. Absent where not yet recorded; a log-less transaction is an honest `0`

The fee actually paid is gasUsed × effectiveGasPrice, in wei.

Errors

Status	`code`	When	`details`
400	`bad_request`	the hash is not `0x` plus 64 hex characters	`reason: tx_hash_invalid`
404	`not_found`	no transaction with this hash is known	—
422	`block_not_available`	the hash is unknown while recent blocks are in a coverage gap — the transaction may sit in it, so the API does not claim it does not exist; ask again later	`reason: coverage_gap`, `coverageGapFromBlock`, `coverageGapToBlock`, `maxAvailableBlock`

Malformed input, unknown parameters and the key check's 401/403/429 are the same for every method — see conventions and API keys.

Event logs of a transaction — what it emitted
Why a transaction reverted — when status is 0
Execution trace of a transaction — every call it made
Transactions of one block — its neighbours in the block
Transactions — the transaction page in the app

Last updated 22 Oct 2026, 08:06 UTC · verified against TraceFast v1.0.261 · Markdown

One transaction

What it covers, and what it does not

Response

data

Errors

Related pages

`data`