Harpie Introduces Background Check API to Provide Crypto Projects with Unprecedented Access to Malicious Transaction Data

Harpie’s Background Check API Equips Crypto Projects with Advanced Security Tools to Detect Scammer Addresses and Enhance Platform Security

Key Takeaways:

  • Harpie, a leading crypto security solutions provider, unveils the Background Check API, offering previously inaccessible data on Ethereum addresses involved in suspicious activity.
  • The API empowers crypto projects and platforms to prevent users from interacting with scammers, bolstering security and trust within the blockchain ecosystem.
  • Harpie’s comprehensive security analysis and recommendations help crypto projects build secure and scam-free experiences for their users.


Harpie, the prominent crypto security solutions provider renowned for its advanced on-chain firewall, announces the launch of a new enterprise tool called Background Check API. This innovative API enables the detection of scammer addresses on the Ethereum blockchain by analyzing vast amounts of on-chain data. With the Background Check API, crypto projects and platforms can protect their users from engaging with scammers without introducing any friction to the user experience.

Rising Threats in the Crypto Space

Crypto scams have become a billion-dollar industry, posing significant risks to users with each transaction. Individual users often bear the burden of evading attacks such as website hijackings, social engineering scams, and phishing assaults. To address this growing concern, Harpie’s API allows crypto and blockchain projects to seamlessly integrate powerful security tools into their platforms, enhancing security measures and safeguarding their users.

Strengthening Trust and Security

“Crypto enterprises and their users face relentless targeting by crypto scams, exposing vulnerabilities that can undermine trust and financial security,” said Daniel Chong, co-founder and CEO of Harpie. “To combat this pervasive threat, Harpie is dedicated to stopping crypto theft. We have developed an engine that empowers crypto platforms to join this effort. The assets in your crypto wallet should be as safe as the money in your bank account. We created Harpie’s Background Check API to arm Web3 projects with critical tools to build secure and scam-free crypto experiences, bringing that peace of mind to users.”

Invaluable Security Analysis and Recommendations

Harpie’s Background Check API delivers human-readable security analysis of transactions, addresses, and contracts, providing actionable security recommendations based on the obtained data. The API continuously tracks the latest attack vectors and incorporates data on over 2 million known cyber criminals, honeypot addresses, and NFT wash traders.

Integration in Crypto Security Tools

Revoke.Cash, a popular security tool that helps users prevent common crypto scams by regularly revoking active allowances, relies on Harpie’s Background Check API to power its platform’s data logs and gather crucial information shared with users before they approve allowances.

Harpie’s data engine also powers the Address Scanner, a free tool available to individuals, enabling anyone to scan an Ethereum address for suspicious or malicious activity such as phishing or cybercrime. The Address Scanner examines the transaction history of a specific address, cross-checks it against databases of known criminals, and analyzes transaction patterns, including past interactions with other addresses.

Seamless Integration for Web3 Developers

Web3 developers constructing solutions or platforms can utilize the Background Check API to perform background checks on up to 3000 addresses daily at a cost of $450 per month. Custom API packages are also available for enterprises seeking deeper integration of the API into their platform code. For more information on Harpie’s Enterprise API and integration methods for Web3 projects, visit

About Harpie

Harpie empowers crypto traders to defend themselves against crypto theft through its state-of-the-art on-chain firewall. The company’s service monitors users’ crypto wallets and prevents malicious transactions, providing a user-friendly security platform to eliminate the threat of theft within blockchains. Harpie publicly launched in September 2022 and secured a $4.5 million seed round of investment from prominent Web3 venture capitalists and crypto platforms, including Dragonfly Capital, Coinbase Ventures, and OpenSea.

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