Humanbound Alternatives
Adversarial testing, a runtime firewall and monitoring for AI agents and chatbots, with an open-source engine
Humanbound tests AI agents and chatbots with adversarial attacks before release, then guards and monitors them in production.
Explore 34 alternatives to Humanbound across 1 category. Updated October 2026.
Top Humanbound alternatives at a glance
- HOL Guard. Local-first runtime firewall that intercepts AI coding agent tool calls before they run
- HAIEC. Scans AI application code, runs adversarial tests against live endpoints, and generates signed compliance evidence
- LLM Guard. Open-source input and output scanners for LLM apps; the repository was archived in July 2026
- AiDren. Drop-in security proxy that blocks prompt injection and data leaks in LLM apps by changing one base URL
- Redcells. Automated adversarial testing for AI systems you own, with replayable evidence
Compare Humanbound with its alternatives
| Product | Pricing Model | Free Tier | Open Source | Hosting | HQ |
|---|---|---|---|---|---|
| Humanbound | — | ✓ | ✓ APACHE-2.0 | Cloud + Self-hosted | 🇬🇷 Greece |
| HOL Guard | Freemium | ✓ | ✓ APACHE2 | Self-hosted | — |
| HAIEC | Subscription | ✓ | — | Cloud | 🇺🇸 United States |
| LLM Guard | Free | ✓ | ✓ | Self-hosted | 🇺🇸 United States |
| AiDren | Subscription | ✓ | — | — | 🇬🇧 United Kingdom |
| Redcells | Pay-per-use | — | — | Cloud | — |
| Presidio | Free | ✓ | ✓ | Cloud + Self-hosted | 🇺🇸 United States |
| Guardrails AI | — | ✓ | ✓ | — | — |
| NeMo Guardrails | Free | ✓ | ✓ | Self-hosted | 🇺🇸 United States |
| Cleanlab | — | ✓ | — | — | 🇺🇸 United States |
| Lakera | Contact Sales | ✓ | — | Cloud | 🇺🇸 United States |
| Langfuse | Freemium | ✓ | ✓ MIT | Cloud + Self-hosted | 🇩🇪 Germany |
| Comet Opik | Freemium | ✓ | ✓ APACHE2 | Cloud + Self-hosted | 🇺🇸 United States |
| DeepEval | Freemium | ✓ | ✓ | Cloud + Self-hosted | 🇺🇸 United States |
| RAGAS | Free | ✓ | ✓ APACHE-2.0 | Self-hosted | 🇺🇸 United States |
| Weights & Biases | Freemium | ✓ | — | Cloud + Self-hosted | 🇺🇸 United States |
Want alternatives like these in your AI assistant? Try the Infrabase MCP server
📊 Observability & Analytics
Presidio
Microsoft open-source SDK for detecting and anonymizing PII in text and images
Guardrails AI
Open-source framework for adding input and output validators around LLM calls
NeMo Guardrails
NVIDIA toolkit for adding programmable guardrails to LLM conversational apps
Comet Opik
Comet provides an end-to-end model evaluation platform for AI developers.
RAGAS
Open-source evaluation and testing framework for LLM and RAG applications
Agenta
Open-source prompt management, evaluation, and observability for LLM apps
Laminar
Open-source agent observability with traces, failure detection and evals
Braintrust
Stop building AI in the dark.
Browse all 56 Observability & Analytics products
Work on a Observability & Analytics product? Feature it at the top of this page.
Is your product missing?