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Start buildingIntroducing QuickAlerts: Real-Time Alerts for On-Chain Events
Discover Quicknode's latest product, QuickAlerts — a powerful tool that delivers real-time notifications for on-chain events. Create a custom feed of blockchain data and stay informed with real-time alerts.

February 7, 2023 — 3 min read

We're excited to announce the launch of Quicknode QuickAlerts — a new product that enables users to receive real-time, actionable alerts for on-chain events.
QuickAlerts let you create a custom data feed containing the on-chain events you care about most, delivered directly to your webhook in real-time. With its intuitive expression language, you can easily configure notifications triggers and target data from blocks, transactions, and logs. QuickAlerts expressions are highly flexible, allowing you to choose between broad or specific data targeting.
The real-time, flexible targeting enabled with QuickAlerts is a game changer for a wide array of use cases, including wallets, DeFi, NFT platforms and creators, analytics, and more. Developers can unlock the potential of targeting real-time blockchain events in their dApps with QuickAlerts.
QuickAlerts is currently available on Ethereum (Mainnet, Goerli, Sepolia), Polygon Mainnet, BSC Mainnet, Avalanche C-Chain, Fantom Mainnet, and Celo Mainnet. Available for Quicknode users on the Build and Scale plans.
Thanks to a collaboration with Polygon, anyone using Quicknode can try QuickAlerts on Polygon for free!

https://dashboard.quicknode.com/quick-alerts
QuickAlerts is configured with two main pieces of information — an evaluation criterion and a notification criterion:
The evaluation criterion defines the specific activity you are interested in and is defined using a flexible expression syntax that developers will find intuitive and familiar. Users can customize our example expressions or build their own from scratch.
The notification criterion defines how you would like to be notified of the activity. Notifications are delivered via Webhooks with plans to expand to include additional delivery methods such as Email, SMS, Discord, Slack, PagerDuty, and more.
QuickAlerts empowers developers to leverage real-time blockchain data, make DeFi trading decisions, add real-time blockchain event-driven logic into workflows, and much more. Whether you're monitoring NFTs, tokens, smart contracts, or wallets, QuickAlerts gives you the ability to stay ahead of the curve and make informed decisions.
Wallets: Get an alert when a wallet sends or receives a transaction, interacts with a smart contract, or when transactions occur between specified wallets.
DeFi: Get notified when dex swaps occur on monitored smart contracts or specific wallets transfer specific ERC-20 contracts.
NFTS: Get an alert whenever an NFT is transferred, traded, minted, or revealed.
Tokens: Get an alert whenever supply is added to a token, your wallet sends or receives ERC20 tokens, or liquidity is removed from a liquidity pool.
Smart Contracts: Get an alert when events occur on specific smart contracts, when a blacklisted or non-whitelisted caller calls your contract.
QuickAlerts is a powerful tool that enables you to leverage real-time blockchain data and advanced alerting to power your apps and workflows. With QuickAlerts, you can build a customized feed of live blockchain data — from very broad to very specific and anything in between — that is sent directly to your webhook URL in real time. Don't miss out on the opportunity to be one of the first to try out QuickAlerts!
[Guide] Tracking Blockchain Event Data with Quicknode's QuickAlerts Expressions
[Video] How to get notified of blockchain events in real-time with QuickAlerts
[Video] Code a Discord bot for on-chain notifications using QuickAlerts from Quicknode
[Video] QuickAlerts: Get Blockchain Event Notifications in Your Inbox Instantly!
Founded in 2017, Quicknode deploys institutional-grade blockchain infrastructure for developers and enterprises. With 99.99% uptime and support for 80+ chains, teams build and scale onchain applications without compromise.
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