Prosopo is the only fully decentralised human verification marketplace for substrate smart contracts, ensuring that Dapp Operators can block bots with minimal trust assumptions.

web3 foundation grants_2
alternative
Seamless Integration
alternative
Decentralised
alternative
Anonymous

How it works

  • Prosopo is a low-trust human verification system allowing Distributed Apps (Dapps) in the Polkadot ecosystem to detect and block network activity generated by automated bots. This is achieved without reliance on centralised third parties.
  • Our network of Providers supply Dapps with verification challenges, such as CAPTCHAs, that identify if users are human. Providers that supply CAPTCHAs benefit from having their data labelled by Dapp Users
  • Providers may also offer alternative verification methods and charge Dapps a fee for the service.
alternative

Why Prosopo?

Prosopo is the only fully decentralised captcha marketplace for substate smart contracts, ensuring that Dapp Operators can block bots with minimal trust assumptions.

FeatureGoogle reCaptchahCaptchaEffect AIProsopo
Decentralized
Portable reputation
Anonymous
Open captcha marketplace
Low-trust smart contract bot protection
Prioritises human verification over data labelling

About

We're still building our bot prevention system for smart contracts but please get in touch if you would like more info or early access to our beta testing programme when it arrives.

Find out how you can use Prosopo to secure your smart contracts against bots

Find out how you can use Prosopo to generate labelled data by offering human verification services

Github Logo

Check out the code and read the documentation on Github