Smart Websockets

Stay Connected

Scalable. Customizable. Easy to set up. Websocket notifications for web3 actions you care about.

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Don't miss an update

Push notifications so you can move faster

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Security

Increased security with static IP addresses and one authentication token per webhook - so if one webhook is compromised, others will not be.

Savings

See how we saved more than $3M annually moving workloads from excessive RPC calls to Alchemy Notify's push based notifications.

Reliability

Access to the most reliable and performant nodes

"We use Alchemy’s Smart Websockets to be immediately notified when new blocks are added to Ethereum, Polygon, Arbitrum, and Optimism. This method has driven a 3x latency improvement in our ingestion process, and as Alchemy optimizes the API, we continue to see improvements to performance."

Kartik Patel

Former Head of Protocol, OpenSea

Explore more of our developer suite

RPC API

The industry leading RPC API

Build and scale your app on the most reliable node infrastructure.

Code preview

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curl https://eth-mainnet.g.alchemy.com/v2/demo \
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":73}'

Custom Webhooks

Real-time data. Any blockchain event.

Infinite data access, precise filter controls.

Code preview

Copied

curl --request POST \
     --url https://dashboard.alchemy.com/api/graphql/variables/variable \
     --header 'content-type: application/json'

	Webhooks	Websockets
Communication protocol	Uni-directional (Chain -> app)	Bi-directional (chain <> app)
Types of notifications	Mined transactions Dropped transactions Address activity NFT activity NFT metadata changes Custom Webhooks	Mined transactions Dropped transactions Address activity NFT activity NFT metadata changes Custom Webhooks
Implementation	Slightly more complex	Slightly easier
Infrastructure resilience	More robust	Less robust
Tech stack structure	More centralized	More distributed