Dapp StoreEthereumWeb3 Security ToolsBlockchain Security Tools
Enterprise CustomersBlockchain Security Tools


Harpie is the first on-chain firewall that protects users from hacks, scams, and theft.

Ethereum Logo

What is Harpie?

Harpie monitors your wallet hundreds of times a second. When we detect a malicious transaction or transfer, we're able to stop that transaction in transit. By using Harpie, you can use Web3 without having to constantly worry about being hacked or scammed.

Improve Web3 Security with Alchemy's Simulation APIs
Get your API key
Is this your project?
Request edits

Best Blockchain Security Tools

Discover more web3 applications and developer tools.

See all dapps
Section background image

Build blockchain magic

Alchemy combines the most powerful web3 developer products and tools with resources, community and legendary support.

Get your API key