# Senthex AI Firewall Senthex AI Firewall is an LLM Guardrails product by Senthex. It runs in the cloud or on-premises (hybrid). Pricing is commercial (contact sales). Proxy-based AI firewall with 26 shields and verifiable audit trail for LLMs. Checked October 2026. ## What is Senthex AI Firewall? Senthex AI Firewall is a proxy-based security layer that sits between an application and LLM providers, inspecting and filtering all requests and responses in transit. How it works: - Integrates via a single base_url change (app.senthex.com/v1), requiring no SDK installation or code refactoring - All LLM API calls are routed through Senthex's shield layer before reaching the target provider - The product forwards provider API keys in-flight and does not persist them Threat detection: - 26 pattern-based shields run on every request and response, covering: prompt injection, PII detection (with optional redaction before the model), secret leaks, unicode steganography, behavioral fingerprinting, semantic analysis, toxicity, code danger, compliance checks, canary tokens, multi-turn tracking, tool call inspection, rate limiting, credit card detection, and others - Detection is described as best-effort and pattern-based; no filter is claimed to be exhaustive Verifiable audit trail: - Every LLM call is logged with a verdict (pass/warn/block), injection score, PII flags, and a per-row SHA-256 hash - Logs form a cryptographic hash chain anchored to an independent RFC 3161 timestamp via freeTSA - An offline verifier tool allows users to validate chain integrity without trusting Senthex - Audit trail maps to EU AI Act Articles 12 (automatic record-keeping) and 19 (log retention) Observability and compliance: - Real-time dashboard with threat timeline, anomaly detection, and per-project analytics - Exportable audit trail for EU AI Act compliance reporting - Log retention varies by plan: 3 days (Free), 14 days (Pro), 90 days (Business) - Hosted in Germany; GDPR compliant; data minimisation by default Pricing tiers: Free (1,000 req/mo), Pro (50,000 req/mo), Business (500,000 req/mo), and Self-hosted option. Tags: AI Firewall, LLM Security, LLM Guardrails, Prompt Injection, PII, AI Compliance, AI Observability, OWASP, GDPR, GenAI Security ## Where it fits in your security program (NIST CSF 2.0) - [Protect](https://cybersectools.com/guides/building-protect-program-small-team): helps you prevent attacks and keep data safe. - [Detect](https://cybersectools.com/guides/building-detect-program-small-team): helps you spot attacks and unusual activity. ## Quick facts - Category: [AI Security](https://cybersectools.com/categories/ai-security) ยท [LLM Guardrails](https://cybersectools.com/categories/llm-guardrails) - Vendor: [Senthex](https://cybersectools.com/companies/senthex) (Claimed listing) - Deployment: Hybrid - Company size fit: Startup, SMB, Mid-Market, Enterprise - Pricing model: Commercial (contact sales) - Features: 10 listed - Integrations: 9 listed - Website: senthex.com The full feature and integration lists are on the page for signed-in visitors. ## Where it ranks No shortlist covers this product's category yet. The closest is [Best AI SOC Solutions for Business](https://cybersectools.com/shortlists/best-ai-soc-solutions). ## Senthex AI Firewall FAQ ### What is Senthex AI Firewall? Senthex AI Firewall is a product by Senthex in the LLM Guardrails category. It covers AI Firewall, LLM Security and LLM Guardrails. ### What is the pricing for Senthex AI Firewall? Senthex AI Firewall is a commercial product. For pricing, visit https://senthex.com/ or contact Senthex. ### What are alternatives to Senthex AI Firewall? Alternatives to Senthex AI Firewall listed on CybersecTools: 1. [RealmGuard](https://cybersectools.com/tools/realm-labs-platform) - AI guardrail platform detecting harmful outputs, prompt injections & policy violations. (Commercial) 2. [Confident Security](https://cybersectools.com/tools/confident-security) - Platform for securing, governing, and monitoring AI/LLM deployments. (Commercial) 3. [SlashLLM](https://cybersectools.com/tools/slashllm) - AI security platform proxying LLM traffic with guardrails, SOC, and governance. (Commercial) 4. [First Recon AI Firewall](https://cybersectools.com/tools/first-recon-ai-firewall) - Inline firewall inspecting AI prompts/responses for injections & policy violations. (Commercial) 5. [Portkey Guardrails for Bedrock](https://cybersectools.com/tools/portkey-guardrails-for-bedrock) - Configurable guardrails for Amazon Bedrock AI requests via an API gateway. (Commercial) Compare all Senthex AI Firewall alternatives at [https://cybersectools.com/alternatives/senthex-ai-firewall](https://cybersectools.com/alternatives/senthex-ai-firewall) ### What deployment and organization size does Senthex AI Firewall fit? Senthex AI Firewall is available as hybrid. It is listed for startup, smb, mid-market and enterprise organizations. Pricing is commercial. Ask Senthex for pricing and support terms. ## Compare Senthex AI Firewall with similar solutions - [Senthex AI Firewall vs RealmGuard](https://cybersectools.com/compare/realm-labs-platform-vs-senthex-ai-firewall) - [Senthex AI Firewall vs Confident Security](https://cybersectools.com/compare/confident-security-vs-senthex-ai-firewall) - [Senthex AI Firewall vs SlashLLM](https://cybersectools.com/compare/senthex-ai-firewall-vs-slashllm) All alternatives to Senthex AI Firewall: [/alternatives/senthex-ai-firewall](https://cybersectools.com/alternatives/senthex-ai-firewall) --- Source: https://cybersectools.com/tools/senthex-ai-firewall For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any compare page has a Markdown copy too (add .md to its URL). More on Senthex AI Firewall and Senthex: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md