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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.

QuickAlerts Mobile Notiifcations

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 and Doge.

Get started today by creating a QuickAlerts API key.

Sample Code for QuickAlerts API.
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!

Sample Code response from QuickAlerts.

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, Goerli, Holesky, Sepolia

BNB Smart Chain

Mainnet, Testnet

Polygon

Mainnet, Amoy, Mumbai

Base

Mainnet, Sepolia

Fantom

Mainnet

Avalanche C-Chain

Mainnet, Fuji

Bera

Artio

Blast

Sepolia

Celo

Mainnet

Optimism

Mainnet, Goerli, Sepolia

Arbitrum

Mainnet, Goerli, Sepolia

Arbitrum Nova

Mainnet

Gnosis

Mainnet

Immutable zkEVM

Mainnet, Testnet

Bitcoin

Mainnet - Available via QuickAlerts REST API

Doge

Mainnet - Available via QuickAlerts REST API

Polygon zkEVM

Mainnet, Testnet

TRON

Mainnet (beta)

Scroll

Mainnet, Testnet

zkSync Era

Mainnet, Sepolia, Testnet

Ethereum Beacon Chain

Mainnet

Solana

Mainnet