Corpus OS
An open-source, wire-first SDK that standardizes LLM, embedding, vector and graph infrastructure behind one protocol, so an application can swap providers without rewriting integration code across LangChain, LlamaIndex, AutoGen, CrewAI or MCP.
Corpus OS is a reference implementation of a vendor-neutral protocol suite for four domains: LLM, embedding, vector and graph. It provides stable, runtime-checkable protocols, normalized errors with retry hints, low-cardinality tenant-hashed metrics safe for SIEM ingestion, and deadline propagation for cancellation and cost control, so a team keeps its existing agent framework while standardizing the infrastructure layer underneath.
It runs in a thin mode composed under an application's own router, or a standalone mode with lightweight built-in infrastructure. The protocol suite and SDK are Apache-2.0 and fully open source, with over 3,330 conformance tests; Corpus Router and official production adapters are separate commercial add-ons, and using the SDK does not require them.