Validator Client SDK for L2s

Built-in support for active-active redundancy, automated failover, and load-balanced validator deployments. Ensures continuous block proposal and attestation even during node or data center outages.

Tooling for seamless protocol upgrades, including hard fork coordination, client version management, and governance parameter voting. Supports both on-chain and off-chain signaling mechanisms.

SDK extensions for integrating custom fraud proofs, data availability layers, or novel consensus mechanisms (e.g., proof-of-stake, proof-of-authority). We adapt the client to your L2's specific security model.

We begin with a deep dive into your L2's consensus mechanism and node architecture. We map out the exact validator lifecycle—from block proposal to attestation—to design an SDK that integrates natively with your stack.

We build the core client logic in Rust or Go, implementing critical functions like block validation, slashing protection, and state management. Every module is built with deterministic testing and comprehensive logging.

Security is foundational. We integrate formal verification for critical consensus logic, implement fuzz testing for network handlers, and prepare the codebase for external audits by firms like Trail of Bits or Quantstamp.

We rigorously benchmark the SDK under simulated mainnet conditions—testing validator uptime, resource consumption, and synchronization speed. We provide detailed performance reports against industry baselines.

We manage the deployment to your staging and production environments, including monitoring setup with Prometheus/Grafana dashboards. We offer ongoing support with defined SLAs for incident response and protocol upgrades.