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Blockscout Transaction Lookup by Chain
x402
Blockscout Transaction Lookup by Chain is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-12).
Fetches detailed on-chain transaction data for a specific transaction hash on a specified blockchain network via Blockscout's multichain explorer API
Price / call$0.002
Success—
StatusUnknown
How this service works
Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data
Output
Returns a rich JSON object describing the transaction: status, sender (from), recipient (to), value, fee breakdown, gas used, gas limit, gas price, block number, timestamp, nonce, confirmations, decoded function call input, token transfers with from/to/amount/token details, revert reason if failed, and chain-specific metadata (e.g. Arbitrum batch/L1 fee fields). Address objects include ENS names, contract flags, scam flags, reputation, and public/private tags.
Example use cases
Verify a DeFi swap transaction
“I just did a swap on Arbitrum and want to confirm it went through — can you look up transaction 0x7f3d9a2b1c4e... on Blockscout and tell me the status, fee paid, and what tokens moved?”
Debug a failed smart contract call
“My contract transaction on Ethereum mainnet failed — the hash is 0xdeadbeef1234... — can you fetch the details from Blockscout and tell me the revert reason and decoded input data?”
Confirm payment receipt on Base
“A customer says they sent me USDC on Base chain, here's the transaction hash: 0x99f1c23a... — can you check Blockscout to confirm the transfer happened, who sent it, and how much?”
Technical details
Endpoint
GEThttps://api.blockscout.com/%7Bchain_id%7D/api/v2/transactions/%7Btransaction_hash_param%7DWhen to prefer
Use this endpoint when you need granular, decoded details about a single transaction on a specific blockchain — including fee breakdown, token transfers, decoded calldata, and revert reasons. Prefer it over generic blockchain RPC calls when you need Blockscout's enriched metadata like ENS resolution, address tags, scam flags, and reputation scores. It covers multiple chains via the chain_id parameter, making it suitable for cross-chain transaction verification workflows.
Side effects
- Invalid or malformed transaction hash returns a 404 or error response
- Unsupported or unknown chain_id returns an error
- Transaction not yet indexed returns empty or 404
- Network timeout for high-traffic chains
- Truncated response if transaction has unusually large calldata or many token transfers
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": {},
"fee": {
"type": "string",
"value": "string"
},
"from": {
"hash": "string",
"name": "string",
"is_scam": true,
"metadata": {},
"proxy_type": "string",
"reputation": "string",
"is_contract": true,
"is_verified": true,
"public_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"private_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"ens_domain_name": "string",
"implementations": [
{
"name": "string",
"address_hash": "string"
}
],
"watchlist_names": [
{
"label": "string",
"display_name": "string"
}
]
},
"hash": "string",
"type": 0,
"nonce": 0,
"value": "string",
"method": "string",
"result": {},
"status": "string",
"arbitrum": {
"status": "string",
"poster_fee": "string",
"network_fee": "string",
"batch_number": 0,
"gas_used_for_l1": "string",
"gas_used_for_l2": "string",
"contains_message": "string",
"batch_data_container": "string",
"message_related_info": {
"message_id": 0,
"message_status": "string",
"associated_l1_transaction_hash": "string"
},
"commitment_transaction": {
"hash": "string",
"status": "string",
"timestamp": "string"
},
"confirmation_transaction": {
"hash": "string",
"status": "string",
"timestamp": "string"
}
},
"gas_used": "string",
"position": 0,
"gas_limit": "string",
"gas_price": "string",
"raw_input": "string",
"timestamp": "string",
"block_number": 0,
"priority_fee": "string",
"confirmations": 0,
"decoded_input": {},
"exchange_rate": "string",
"revert_reason": {},
"max_fee_per_gas": "string",
"token_transfers": [
{
"to": {
"hash": "string",
"name": "string",
"is_scam": true,
"metadata": {},
"proxy_type": "string",
"reputation": "string",
"is_contract": true,
"is_verified": true,
"public_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"private_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"ens_domain_name": "string",
"implementations": [
{
"name": "string",
"address_hash": "string"
}
],
"watchlist_names": [
{
"label": "string",
"display_name": "string"
}
]
},
"from": {
"hash": "string",
"name": "string",
"is_scam": true,
"metadata": {},
"proxy_type": "string",
"reputation": "string",
"is_contract": true,
"is_verified": true,
"public_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"private_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"ens_domain_name": "string",
"implementations": [
{
"name": "string",
"address_hash": "string"
}
],
"watchlist_names": [
{
"label": "string",
"display_name": "string"
}
]
},
"type": "string",
"token": {
"name": "string",
"type": {},
"symbol": "string",
"decimals": "string",
"icon_url": "string",
"reputation": "string",
"volume_24h": "string",
"bridge_type": "string",
"address_hash": "string",
"total_supply": "string",
"exchange_rate": "string",
"holders_count": "string",
"foreign_address": "string",
"origin_chain_id": "string",
"circulating_supply": "string",
"circulating_market_cap": "string"
},
"total": {},
"method": "string",
"log_index": 0,
"timestamp": "string",
"block_hash": "string",
"token_type": "string",
"block_number": 0,
"transaction_hash": "string"
}
],
"transaction_tag": "string",
"base_fee_per_gas": "string",
"created_contract": {},
"is_pending_update": true,
"transaction_types": [
"string"
],
"authorization_list": [
{
"r": "string",
"s": "string",
"v": 0,
"nonce": "string",
"status": "string",
"chain_id": 0,
"authority": "string",
"address_hash": "string"
}
],
"fhe_operations_count": 0,
"confirmation_duration": [
0
],
"transaction_burnt_fee": "string",
"historic_exchange_rate": "string",
"max_priority_fee_per_gas": "string",
"token_transfers_overflow": true,
"has_error_in_internal_transactions": true
}
}Tags
x402
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