* [Nodecore 1.14.0](https://github.com/drpcorg/nodecore) – Fault-tolerant, API-agnostic RPC load balancer that routes blockchain requests across upstreams using real-time scoring, caching, hedging, retries, rate-limiting, and quorum verification.

* [BFE v1.8.5](https://github.com/bfenetworks/bfe) – Modern layer 7 load balancer supporting multiple protocols, content-based routing, and flexible plugin extensions.

* [PgDog v0.1.56](https://github.com/pgdogdev/pgdog) – Transaction pooler, logical replication manager, and sharding proxy for PostgreSQL written in Rust.