Library / SDK
Agents & OrchestrationInference & Serving
Llama Stack
1Standardized 2APIs 3for 4building 5AI 6applications.
the six Ws · specification
W1
Who
By Meta.
W2
What
Defines and implements unified APIs for inference, RAG, agents, and safety.
W3
Where
A server and SDKs, self- or provider-hosted.
W4
When
When you want portable, standard building blocks.
W5
Why
One API surface across many providers.
W6
With
Python and a chosen backend.
W7
Watch
MIT, from Meta; self-host or use a provider, no lock-in to one backend.
MetaStandard-APIAgents