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Guardrails AI
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Claude Code Knowledge Pack7/10/2026
Overview
Guardrails AI
Use Guardrails AI (guardrailsai.com) to add checks to LLM output.
Pre-requisites
- Setup Guardrails AI Server. quick start
Usage
- Setup config.yaml
model_list:
- model_name: gpt-3.5-turbo
litellm_params:
model: gpt-3.5-turbo
api_key: os.environ/OPENAI_API_KEY
guardrails:
- guardrail_name: "guardrails_ai-guard"
litellm_params:
guardrail: guardrails_ai
guard_name: "detect-secrets-guard" # š Guardrail AI guard name
mode: "pre_call"
guardrails_ai_api_input_format: "llmOutput" # š This is the only option that currently works (and it is a default), use it for both pre_call and post_call hooks
api_base: os.environ/GUARDRAILS_AI_API_BASE # š Guardrails AI API Base. Defaults to "http://0.0.0.0:8000"
- Start LiteLLM Gateway
litellm --config config.yaml --detailed_debug
- Test request
Langchain, OpenAI SDK Usage Examples
curl -i http://localhost:4000/v1/chat/completions \\
-H "Content-Type: application/json" \\
-H "Authorization: Bearer sk-npnwjPQciVRok5yNZgKmFQ" \\
-d '{
"model": "gpt-3.5-turbo",
"messages": [
{"role": "user", "content": "hi my email is ishaan@berri.ai"}
],
"guardrails": ["guardrails_ai-guard"]
}'
⨠Control Guardrails per Project (API Key)
:::info
⨠This is an Enterprise only feature Contact us to get a free trial
:::
Use this to control what guardrails run per project. In this tutorial we only want the following guardrails to run for 1 project (API Key)
guardrails: ["aporia-pre-guard", "aporia-post-guard"]
Step 1 Create Key with guardrail settings
curl -X POST 'http://0.0.0.0:4000/key/generate' \\
-H 'Authorization: Bearer sk-1234' \\
-H 'Content-Type: application/json' \\
-d '{
"guardrails": ["guardrails_ai-guard"]
}
}'
curl --location 'http://0.0.0.0:4000/key/update' \\
--header 'Authorization: Bearer sk-1234' \\
--header 'Content-Type: application/json' \\
--data '{
"key": "sk-jNm1Zar7XfNdZXp49Z1kSQ",
"guardrails": ["guardrails_ai-guard"]
}
}'
Step 2 Test it with new key
curl --location 'http://0.0.0.0:4000/chat/completions' \\
--header 'Authorization: Bearer sk-jNm1Zar7XfNdZXp49Z1kSQ' \\
--header 'Content-Type: application/json' \\
--data '{
"model": "gpt-3.5-turbo",
"messages": [
{
"role": "user",
"content": "my email is ishaan@berri.ai"
}
]
}'