> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/nemo/guardrails/llms.txt.
> For full documentation content, see https://docs.nvidia.com/nemo/guardrails/llms-full.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nemo/guardrails/_mcp/server.

# Use the Guardrails API Server

> Expose guardrails through an HTTP API using the Guardrails API server.

The NeMo Guardrails library includes the Guardrails API server that exposes guardrails through an HTTP API.
This section covers how to run the server and interact with it.

The Guardrails API server is a tool for running guardrails in a secure, isolated environment.

Concept

Start the Guardrails API server, configure CORS, and enable auto-reload.

Tutorial

Send chat requests, use streaming, and manage conversation threads.

Tutorial

Retrieve available guardrails configurations from the server.

Reference

Query the available LLM models from the configured provider.

Reference

Run guardrail actions in a secure, isolated environment.

Tutorial