Worked on integrating Quasar into the cosmos/chain-registry and chainapsis/keplr-chain-registry repositories, focusing on backend and API development using Go and JSON. Delivered end-to-end RPC, REST, and gRPC endpoint registration, establishing inter-service communication scaffolding within the dungeon module. Improved registry reliability by cleaning up misconfigured endpoints and standardizing definitions, which enhanced data integrity for downstream services. Synchronized configuration and asset data across multiple registries, ensuring consistent onboarding and reducing manual intervention. All updates were configuration or data-driven, with no changes to core logic, supporting smoother deployments and improved maintainability. Emphasized API configuration, backend development, and data management throughout.