The Transaction Parameters trigger gives you granular control over exactly which transactions produce alerts. You can match on any field of the transaction, receipt, or block — from the sender address and gas price to block-level metadata.Documentation Index
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Use cases
Gas price anomaly detection
Gas price anomaly detection
Alert when a transaction arrives with an unusually high gas price, which can indicate front-running or a misconfigured bot.
Large value transfers
Large value transfers
Fire an alert whenever a transaction carries more than a threshold amount of native token (Value field).
Specific sender monitoring
Specific sender monitoring
Watch for transactions from a particular address without adding it to a blacklist — useful for monitoring partner wallets or known bots.
Receipt and status checks
Receipt and status checks
Trigger on receipt fields such as gas used or cumulative gas to catch unexpectedly expensive transactions.
Configuration
From contract (optional)
Toggle From contract on to restrict the trigger to transactions that originate from a smart contract (i.e., internal calls), rather than externally owned accounts.
Parameters
Configure one or more parameter rules. Each rule consists of:
Enable Choose multiple parameters to add additional rules. Multiple rules are combined with AND logic — all rules must match for the trigger to fire.
| Field | Description |
|---|---|
| Parameter | The transaction/block/receipt field to inspect (see full list below). |
| Operator | Comparison operator: =, !=, >, >=, <, <=, contains, startsWith, endsWith. |
| Value | The value to compare against. |
Available parameters
| Parameter | Description |
|---|---|
| From | Sender address of the transaction. |
| To | Recipient address of the transaction. |
| Value | Native token amount sent with the transaction (in wei). |
| Gas | Gas limit set by the sender. |
| Gas Price | Gas price set by the sender (in wei). |
| Max Fee Per Gas | Maximum total fee per gas unit (EIP-1559). |
| Max Priority Fee Per Gas | Maximum priority fee (tip) per gas unit (EIP-1559). |
| Nonce | Sender’s transaction nonce. |
| Input | Raw calldata of the transaction. |
| Transaction Hash | Unique hash identifying the transaction. |
| Transaction Index | Position of the transaction within its block. |
| Transaction Type | Transaction type (0 = legacy, 1 = access list, 2 = EIP-1559). |
| Timestamp | Unix timestamp of the block containing the transaction. |
| Block Number | Height of the block containing the transaction. |
| Block Hash | Hash of the block. |
| Block Gas Limit | Maximum gas allowed in the block. |
| Block Gas Used | Total gas used by all transactions in the block. |
| Block Base Fee Per Gas | Base fee per gas in the block (EIP-1559). |
| Block Miner | Address of the block producer. |
| Block Difficulty | Proof-of-work difficulty of the block. |
| Block Total Difficulty | Cumulative difficulty up to this block. |
| Block Size | Size of the block in bytes. |
| Block Transaction Count | Number of transactions in the block. |
| Block Parent Hash | Hash of the parent block. |
| Block Nonce | Block nonce used in proof-of-work. |
| Block SHA-3 Uncles | SHA3 hash of the uncle blocks list. |
| Block State Root | Root hash of the state trie after the block. |
| Block Transactions Root | Root hash of the transactions trie. |
| Block Receipts Root | Root hash of the receipts trie. |
| Block Logs Bloom | Bloom filter for log entries in the block. |
| Block Extra Data | Extra data field set by the block producer. |
| Receipt Status | Transaction receipt status (1 = success, 0 = failure). |
| Receipt Gas Used | Gas used by this transaction specifically. |
| Receipt Cumulative Gas Used | Total gas used in the block up to and including this transaction. |
| Receipt Effective Gas Price | Actual gas price paid (base fee + tip). |
| Receipt Contract Address | Contract address created by this transaction, if any. |
| Receipt Root | Post-transaction state root (pre-Byzantium). |