Real-time alerts for on-chain events
QuickAlerts enables you to leverage real-time blockchain data and advanced alerting to power your apps, make DeFi trading decisions based on the specific data that matters to you, add real-time blockchain event driven logic into your workflows, and more.
Your real-time alert
command center
QuickAlerts expressions can be simple or complex, enabling you to be notified of the real-time on-chain events that matter to you.
NFTs
Receive real-time notifications for critical NFT events, including when they are minted, transferred, or added to collections.
Tokens
Always be the first to know about changes to relevant tokens, price oracles, and liquidity pools.
Smart Contracts
Set up alerts for smart contract updates, including deployments, transfers, or custom-defined activities that matter to you.
Wallets
Stay on top of transactions to and from specific wallet addresses. Track your digital assets and keep your wallet secure.
Target anything with custom expressions
QuickAlerts expressions can be simple or complex, depending on what is important to you,
enabling you to be notified of real-time events that matter to you.
Wallet A (0x...aeC9B) just made a transfer
to Wallet B (0x...aeC9B) on Polygon mainnet
// A transaction is sent to, or received by a wallet
(tx_from == '0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B') ||
(tx_to == ' 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B')
A transaction (0x...aeC9B) just failed to complete
on a wallet (0x...aeC9B) you're monitoring
// Get an instant alert whenever a transaction
// sent to your wallet fails
(tx_to == ' 0x4B16c5dE96EB2117bBE5fd171E4d203624B014aa') &&
(tx_status == 0)
A contract (0x...aeC9B) you're monitoring on Ethereum
mainnet just minted another NFT (0x...aeC9B)
// Any new ERC721 or ERC1155 NFT is minted.
((tx_logs_topic0 ==
'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef' && tx_logs_topic1 ==
'0x0000000000000000000000000000000000000000000000000000000000000000' && tx_logs_topic3_int > 0) || (tx_logs_topic0 ==
'0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62' && tx_logs_topic2 ==
'0x0000000000000000000000000000000000000000000000000000000000000000') || (tx_logs_topic0 ==
'0x4a39dc06d4c0dbc64b70af90fd698a233a518aa5d07e595d983b8c0526c8f7fb' && tx_logs_topic2 ==
'0x0000000000000000000000000000000000000000000000000000000000000000'))
Block Data
Use our flexible expression language to target block data, such as block size, miner address, and gas data.
block_baseFeePerGas
block_difficulty
block_extraData
block_gasLimit
block_gasUsed
block_hash
block_logsBloom
block_miner
block_mixHash
block_number
block_parentHash
block_sha3Uncles
block_size
block_stateRoot
block_timestamp
block_totalTransactions
block_transactionsRoot
block_totalUncles
Transaction data
Target specific transaction data, such as the sender and receiver addresses, input, and value transferred.
tx_blockHash
tx_blockNumber
tx_contractAddress
tx_cumulativeGasUsed
tx_effectiveGasPrice
tx_gas
tx_gasPrice
tx_input
tx_nonce
tx_from
tx_to
tx_transactionHash
tx_logsBloom
tx_status
tx_transactionIndex
tx_value
tx_type
tx_maxFeePerGas
tx_maxPriorityFeePerGas
tx_v
tx_r
tx_s
Transaction log data
Target transaction log data such as contract address, topic hashes and data - evaluated in hex or integer format.
tx_logs_address
tx_logs_topic0
tx_logs_topic0_int
tx_logs_topic1
tx_logs_topic1_int
tx_logs_topic2
tx_logs_topic2_int
tx_logs_topic3
tx_logs_topic3_int
tx_logs_data
tx_logs_data_int
tx_logs_blockHash
tx_logs_blockNumber
tx_logs_logIndex
tx_logs_removed
tx_logs_transactionHash
tx_logs_transactionIndex
QuickAlerts REST API
Integrate QuickAlerts directly into your applications with our powerful REST API, making it easier than ever to handle real-time blockchain events dynamically. QuickAlerts REST API also enables users to use QuickAlerts with additional chains like Bitcoin.
Get started today by creating a QuickAlerts API key.
All the destinations you need
We're excited to provide this new service to our customers to further enable real-time alerting.
Webhooks
Coming Soon
Coming Soon
Coming Soon
A return that gives you options
QuickAlerts expressions enable you to receive a custom feed of actionable blockchain data in real-time!
Multi-chain monitoring
Receive real-time notifications of on-chain events happening across multiple blockchain networks, including Ethereum, BNB Smart Chain, and more
Ethereum
Mainnet, Holesky, Sepolia
BNB Smart Chain
Mainnet, Testnet
Polygon
Mainnet, Amoy
Base
Mainnet, Sepolia
Fantom
Mainnet
Avalanche C-Chain
Mainnet, Fuji
Bera
Artio
Blast
Mainnet, Sepolia
Celo
Mainnet
Optimism
Mainnet, Sepolia
Arbitrum
Mainnet, Sepolia
Arbitrum Nova
Mainnet
Gnosis
Mainnet
Immutable zkEVM
Mainnet, Testnet
Bitcoin
Mainnet - Available via QuickAlerts REST API
Mantle
Mainnet, Sepolia
Morph
Holesky
Polygon zkEVM
Mainnet, Cardona
TRON
Mainnet (beta)
Scroll
Mainnet, Testnet
zkSync Era
Mainnet, Sepolia
Ethereum Beacon Chain
Mainnet
Solana
Mainnet