BuildFetch Cache vs FosterStack

BuildFetch Cache is a remote cache platform intended to reduce build times and CI costs across build systems. It lists native support for Bazel, Gradle, Maven, Sbt, Buck2, Moon, Buildbarn, Ccache, Sccache, Go, Nx, and Turborepo; its listed compiler and language support includes C, C++, Rust, Go, Kotlin, Java, TypeScript, Scala, Assembly, CUDA, Objective-C, Objective-C++, and AMD ROCm HIP. Remote cache outputs can be shared across engineer workstations, CI, and AI agent environments. For Bazel, it supports both gRPC and HTTP remote cache APIs. BuildFetch uses NVMe for ephemeral cache storage and SSD for persistent storage, and its dashboard shows throughput, tail latency, request volume, and storage usage. Scoped project tokens can set read-only or read-write access. The product is offered through BuildFetch Cloud and can also be deployed in Custom Cloud or on-premise Kubernetes environments. The free Open Source plan has caps of 20GB fast cache storage, 50GB network traffic, and 100,000 cache requests, with 45 days LRU retention; those resource caps cannot be exceeded. Paid plans start at $55 a month, and a 45-day trial is listed for Custom. BuildFetch says data is encrypted in transit and at rest.

FosterStack is a self-hosted remote build cache server intended as a replacement for Develocity Build Cache Node. It supports Gradle and the Apache Maven Build Cache Extension remote HTTP mode, although Maven acceptance coverage is in progress. Size-capped LRU eviction frees space for new entries. HTTP Basic Auth over TLS uses constant-time credential comparison, and credentials are not logged. Prometheus metrics and a read-only status page report hit rates and cache size against its cap. Deployment options are a Docker image or static binary; release binaries are available for Linux and macOS on amd64 and arm64. Windows is not built or planned. The MIT-licensed core has signed releases with SLSA provenance, and security patches are included in the free tier. The maker says the free core makes no outbound connections and collects no telemetry or usage data. FosterStack identifies the product as v0.1 and says nobody outside its own work is yet running it in a production build pipeline. The full self-hosted server is free. Team, Business, and Compliance plans are described but not yet available, with listed prices of $49.00 per month, $199.00 per month, and $499.00 per year, respectively.