Ludo. Reputation platform of Web3

The Web3 ecosystem had no unified way to measure trust. With over 2 million wallet addresses active across 15+ blockchain networks, users and projects had zero visibility into counterparty reputation. Fraud, rug pulls and anonymous bad actors eroded confidence in DeFi, NFT and gaming communities. The client needed a reputation scoring engine capable of aggregating on-chain data in real time – processing 10,000+ blockchain events per second – while keeping response times under 200ms for API consumers.

The team aimed to:

• Create a cross-chain reputation score that updates in real time.
• Provide users and projects with a trust signal that goes beyond token prices.
• Offer tools for curators and builders to connect with reliable audiences.

We assembled a cross-functional team of blockchain engineers, backend architects and data pipeline specialists with deep experience in blockchain and DeFi infrastructure. Our methodology combined event-driven architecture design with iterative delivery cycles, enabling us to ship production-grade indexing for each new blockchain within days. We paired DevOps-first infrastructure with continuous load testing to guarantee sub-200ms latency at scale from day one.

The backend uses Java with Spring Boot to provide a reliable foundation for APIs and reputation logic. Apache Kafka handles event streaming, while Apache Flink processes large amounts of real-time blockchain data. This configuration ensures reputation scores are fast, accurate and always current.

The platform features a modern React frontend designed for both web and browser extensions. A Telegram mini-app was added to make reputation scores accessible on the go, meeting users where they already interact in Web3.

Apache Cassandra manages user and reputation data at scale, while Delta Lake organizes historical data for analytics. Apache Pinot powers real-time dashboards and APIs for curators and builders. Everything runs in Kubernetes with Istio for traffic management, deployed on AWS to ensure scalability and reliability.

Ludo aggregates data from multiple blockchains and updates reputation scores in real time. This provides users and projects with a clear, current indicator of trust.

Reputation insights can be accessed across various touchpoints. Users can view their profiles on the web, via a browser extension, or directly within a Telegram mini-app.

Reputation is represented by soulbound NFTs that can’t be transferred or sold, keeping it authentic. Curators use Ludo to build trusted lists, while builders utilize public APIs to incorporate reputation data into their own products.

We designed and deployed a reputation scoring engine that aggregates on-chain behavior from 15+ blockchain networks into a single trust metric. Our system has scored over 2M wallet addresses since launch, giving users and projects an instant way to evaluate counterparty reliability across DeFi, gaming and social platforms.

We delivered a developer-friendly API suite that curators, builders and projects integrate in hours, not weeks. Our APIs serve 50+ integrated partners across DeFi, gaming and social verticals with sub-200ms response times. We built comprehensive documentation and SDKs that reduced partner onboarding time by over 60%.

We architected an event-driven pipeline that processes over 10K blockchain events per second without queuing delays or data loss. Our infrastructure maintains 99.9% uptime with auto-scaling during traffic spikes. Every reputation score we generate is transparent, traceable and updated in real time – building the auditability that Web3 users demand.