# nxus.SYSTEMS Documentation
> Documentation for nxus.SYSTEMS products and services.

## Pages

- [nxus.SYSTEMS Documentation](https://docs.nxus.systems): Documentation hub for nxus.SYSTEMS products.
- [nxusKit SDK](https://docs.nxus.systems/nxuskit): A type-safe, multi-language SDK for LLM providers, rule engines, constraint solvers, and decision tables.
- [Architecture](https://docs.nxus.systems/nxuskit/concepts/architecture): Technical architecture of nxusKit — component overview and cross-language design.
- [Licensing](https://docs.nxus.systems/nxuskit/concepts/licensing): How to activate, manage, and troubleshoot nxusKit Pro licenses.
- [Provider Model](https://docs.nxus.systems/nxuskit/concepts/provider-model): How nxusKit abstracts over LLM providers.
- [Tier System](https://docs.nxus.systems/nxuskit/concepts/tier-system): Feature and limit comparison across Community, Pro, and Enterprise editions of nxusKit.
- [Examples](https://docs.nxus.systems/nxuskit/examples): 32 production examples for nxusKit in Rust, Go, Python, and CLI/Bash.
- [Authentication](https://docs.nxus.systems/nxuskit/getting-started/authentication): Configure API keys and credentials for cloud and local LLM providers.
- [First Call](https://docs.nxus.systems/nxuskit/getting-started/first-call): Make your first LLM call with nxusKit in Rust, Go, Python, or C.
- [Installation](https://docs.nxus.systems/nxuskit/getting-started/installation): Download, install, and configure the nxusKit SDK on macOS, Linux, or Windows.
- [CLIPS Rule Authoring Guide](https://docs.nxus.systems/nxuskit/guides/clips-rule-authoring): How to write, test, and deploy custom CLIPS rules with the nxusKit SDK.
- [CLIPS Excluded Capabilities & Workarounds](https://docs.nxus.systems/nxuskit/guides/clips-workarounds): Four CLIPS capabilities excluded from the Session API and their working alternatives.
- [Streaming](https://docs.nxus.systems/nxuskit/guides/streaming): How to use streaming chat completions with nxusKit.
- [CLIPS Session Migration](https://docs.nxus.systems/nxuskit/migration/clips-session-migration): Migrate from the legacy ClipsEnvironment API to the new ClipsSession API introduced in SDK v0.9.1.
- [Upgrade Path](https://docs.nxus.systems/nxuskit/migration/upgrade-path): Error messages and resolutions when Pro features are unavailable or licenses need updating.
- [API Reference](https://docs.nxus.systems/nxuskit/reference/api): Complete nxusKit SDK API reference.
- [C ABI Reference](https://docs.nxus.systems/nxuskit/reference/api-reference): Complete reference for the nxusKit C ABI — all functions, types, and ownership rules.
- [Changelog](https://docs.nxus.systems/nxuskit/reference/changelog): Release notes for nxusKit SDK versions.
- [CLI Input Format Reference](https://docs.nxus.systems/nxuskit/reference/cli-reference): Input schemas and examples for every Level 1 nxuskit-cli command.
- [Cloud LLM Providers](https://docs.nxus.systems/nxuskit/reference/providers/cloud-llms): Configuration reference for OpenAI, Anthropic, Groq, Mistral, Fireworks, Together, OpenRouter, and Perplexity providers.
- [Expert System & Utility Providers](https://docs.nxus.systems/nxuskit/reference/providers/expert-systems): Configuration reference for the CLIPS rule engine, MCP, Mock, and Loopback providers.
- [Local LLM Providers](https://docs.nxus.systems/nxuskit/reference/providers/local-llms): Configuration reference for in-process (llama.cpp, mistral.rs) and HTTP-based (Ollama, LM Studio) local LLM providers.
- [Z3 Constraint Satisfaction Provider](https://docs.nxus.systems/nxuskit/reference/providers/z3-solver): Configuration and input/output reference for the Z3 SMT solver provider.
- [nxus.SYSTEMS Documentation](https://docs.nxus.systems/v0.9.2): Documentation hub for nxus.SYSTEMS products.
- [nxusKit SDK](https://docs.nxus.systems/v0.9.2/nxuskit): A type-safe, multi-language SDK for LLM providers, rule engines,
- [Architecture](https://docs.nxus.systems/v0.9.2/nxuskit/concepts/architecture): Technical architecture of nxusKit — component overview and cross-language design.
- [Licensing](https://docs.nxus.systems/v0.9.2/nxuskit/concepts/licensing): How to activate, manage, and troubleshoot nxusKit Pro licenses.
- [Provider Model](https://docs.nxus.systems/v0.9.2/nxuskit/concepts/provider-model): How nxusKit abstracts over LLM providers.
- [Tier System](https://docs.nxus.systems/v0.9.2/nxuskit/concepts/tier-system): Feature and limit comparison across Community, Pro, and Enterprise
- [Examples](https://docs.nxus.systems/v0.9.2/nxuskit/examples): 32 production examples for nxusKit in Rust, Go, and Python — LLM
- [Authentication](https://docs.nxus.systems/v0.9.2/nxuskit/getting-started/authentication): Configure API keys and credentials for cloud and local LLM providers.
- [First Call](https://docs.nxus.systems/v0.9.2/nxuskit/getting-started/first-call): Make your first LLM call with nxusKit in Rust, Go, Python, or C.
- [Installation](https://docs.nxus.systems/v0.9.2/nxuskit/getting-started/installation): Download, install, and configure the nxusKit SDK on macOS, Linux, or Windows.
- [CLIPS Rule Authoring Guide](https://docs.nxus.systems/v0.9.2/nxuskit/guides/clips-rule-authoring): How to write, test, and deploy custom CLIPS rules with the nxusKit SDK.
- [CLIPS Excluded Capabilities & Workarounds](https://docs.nxus.systems/v0.9.2/nxuskit/guides/clips-workarounds): Four CLIPS capabilities excluded from the Session API and their
- [Streaming](https://docs.nxus.systems/v0.9.2/nxuskit/guides/streaming): How to use streaming chat completions with nxusKit.
- [CLIPS Session Migration](https://docs.nxus.systems/v0.9.2/nxuskit/migration/clips-session-migration): Migrate from the legacy ClipsEnvironment API to the new
- [Upgrade Path](https://docs.nxus.systems/v0.9.2/nxuskit/migration/upgrade-path): Error messages and resolutions when Pro features are unavailable or
- [API Reference](https://docs.nxus.systems/v0.9.2/nxuskit/reference/api): Complete nxusKit SDK API reference.
- [C ABI Reference](https://docs.nxus.systems/v0.9.2/nxuskit/reference/api-reference): Complete reference for the nxusKit C ABI — all functions, types,
- [Changelog](https://docs.nxus.systems/v0.9.2/nxuskit/reference/changelog): Release notes for nxusKit SDK versions.
- [CLI Input Format Reference](https://docs.nxus.systems/v0.9.2/nxuskit/reference/cli-reference): Input schemas and examples for every Level 1 nxuskit-cli command.
- [Cloud LLM Providers](https://docs.nxus.systems/v0.9.2/nxuskit/reference/providers/cloud-llms): Configuration reference for OpenAI, Anthropic, Groq, Mistral,
- [Expert System & Utility Providers](https://docs.nxus.systems/v0.9.2/nxuskit/reference/providers/expert-systems): Configuration reference for the CLIPS rule engine, MCP, Mock, and
- [Local LLM Providers](https://docs.nxus.systems/v0.9.2/nxuskit/reference/providers/local-llms): Configuration reference for in-process (llama.cpp, mistral.rs) and
- [Z3 Constraint Satisfaction Provider](https://docs.nxus.systems/v0.9.2/nxuskit/reference/providers/z3-solver): Configuration and input/output reference for the Z3 SMT solver provider.