# Guardrails and safety filters for AI agents (slim)

> 9 guardrails & safety filters ranked by the Anchor benchmark. Leader Google Cloud Model Armor (A). APIs and libraries that check what goes into and comes out of a model: prompt injection, jailbreaks, personal data, toxic content and off-policy answers. Compared on what they detect, false positives, the latency they add and where the data goes.

- Full: https://www.anchorterminal.com/categories/guardrails.md (~3,100 tokens) · this version ~530 tokens · JSON https://www.anchorterminal.com/categories/guardrails.json · canonical https://www.anchorterminal.com/categories/guardrails
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

- Tools: 9 · agent-ready (BB+): 3 · accept x402: 0 · JSON: https://www.anchorterminal.com/api/v1/tools.json · by capability: https://www.anchorterminal.com/api/v1/capabilities.json
- Capabilities: guard.injection, guard.pii, guard.moderation, guard.policy, guard.self-host

| # | Tool | Grade | Score | Confidence | x402 | Auth | Where | Slim |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 16 | Google Cloud Model Armor | A | 78 | high | no | OAuth | hosted | https://www.anchorterminal.com/tools/google-model-armor.min.md |
| 41 | Amazon Bedrock Guardrails | BB | 75.1 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/amazon-bedrock-guardrails.min.md |
| 81 | OpenAI Moderation API | BB | 71.6 | high | no | API key | hosted | https://www.anchorterminal.com/tools/openai-moderation.min.md |
| 120 | NVIDIA NeMo Guardrails | B | 68.7 | medium | no | None | library | https://www.anchorterminal.com/tools/nemo-guardrails.min.md |
| 237 | Azure AI Content Safety (Prompt Shields) | C | 60.9 | medium | no | OAuth or key | hosted | https://www.anchorterminal.com/tools/azure-ai-content-safety.min.md |
| 260 | Lakera Guard (Check Point AI Guardrails) | C | 59.7 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/lakera-guard.min.md |
| 278 | Mistral Moderation API | C | 58.6 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/mistral-moderation.min.md |
| 366 | Guardrails AI | D | 49.8 | medium | no | None | library | https://www.anchorterminal.com/tools/guardrails-ai.min.md |
| 378 | Galileo API + MCP | D | 48 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/galileo.min.md |