Harpie
The business, the turning points, and the decisions behind them.
01 / WHAT IT BUILT
What the company did
Harpie, founded in 2021, was a Web3 security company that built an on-chain firewall to protect crypto users from hacks, scams and wallet theft in real time. Unlike passive monitoring tools, Harpie's system proactively tracked wallets for threats and blocked malicious transactions before they could execute. The company raised a $4.5M seed round in September 2022 led by Dragonfly Capital, with participation from Coinbase Ventures and OpenSea.
02 / Harpie FAILURE REASONS
Failure factors
shut down due to financial struggles / could not create a sustainable business model around theft-free crypto ecosystem. Crypto.news same X announcement.
could not create a sustainable business model around the product.
Coverage frames immediate shutdown amid financial struggles after $4.5M 2022 seed.
03 / EVENT HISTORY
Events in the structured record
- Product or service closed
+ crypto.news: company X thread announced Harpie services shut down immediately; users told to disconnect Harpie RPC.
04 / CONTEMPORARY REBUILD ASSESSMENT
Difficulty of rebuilding this project today
Material for this section is being gathered and checked. It will appear here once ready.
Overall assessment: Not completed
05 / CAUSAL CHAIN
How the factors connect
- 01
Harpie was founded in 2021 and raised a $4.5M seed round in September 2022 led by Dragonfly Capital, with Coinbase Ventures and OpenSea participating.
- 02
Its on-chain firewall proactively tracked wallets for threats and blocked malicious transactions in real time.
- 03
Harpie announced in an X thread on March 27, 2025 that it would shut down immediately, citing the failure to build a sustainable business model.