Architecture

flowchart LR
  subgraph clients [Clients]
    browser[Dashboard / Playground]
    widget[Widget / React]
    sdk[SDK / REST]
  end

  subgraph web [apps/web]
    api[API routes]
    worker[Ingest + eval workers]
  end

  subgraph packages [Packages]
    rag["@chatai/rag"]
    ai["@chatai/ai"]
    db["@chatai/database"]
    evals["@chatai/evals"]
  end

  pg[(Postgres + pgvector)]

  browser --> api
  widget --> api
  sdk --> api
  api --> rag
  api --> ai
  api --> db
  worker --> rag
  worker --> evals
  rag --> ai
  rag --> db
  evals --> db
  db --> pg
  ai --> providers[LLM / embedding providers]