LangChain Enterprise RBAC

Overview

Role-based access control for multi-tenant LangChain applications: permission models, model access gating, tenant-scoped vector stores, usage quotas, and FastAPI middleware integration.

Permission Model

// permissions.ts
enum Permission {
  CHAIN_INVOKE = "chain:invoke",
  CHAIN_STREAM = "chain:stream",
  MODEL_GPT4O = "model:gpt-4o",
  MODEL_GPT4O_MINI = "model:gpt-4o-mini",
  MODEL_CLAUDE = "model:claude-sonnet",
  TOOLS_EXECUTE = "tools:execute",
  ADMIN_CONFIG = "admin:config",
  ADMIN_USERS = "admin:users",
}