OpenSecureAI Prompt Firewall review
A focused prompt firewall for injection, secrets, PII, and policy enforcement.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
OpenSecureAI Prompt Firewall evaluates text before or after it reaches an LLM. It is designed for developers and teams building LLM applications, agents, and other generative-AI systems. The product detects and blocks prompt-injection patterns and leaked secrets, detects and redacts personally identifiable information, and applies allow, flag, or block policy decisions. Sanitized text output adds a controlled result for applications that need to process text after filtering.
Pricing follows a freemium model. The Free plan is $0 per month and includes in-browser tools and npm packages, a hosted advanced engine with an API key, account-synced scan history, an LLM Gateway with bring-your-own-key, and bring-your-own-key AI remediation. The Pro plan is $49 per month and adds hosted AI remediation, LLM Gateway completions, and priority email support while including everything in Free. Team includes everything in Pro, with team seats and SSO, custom rules, and SLA marked as planned. Paid checkout is not self-serve, which may affect teams looking for an immediate online purchase path.
Its platform fit is practical for JavaScript and TypeScript applications: the product offers an npm package, command-line scanning, CI pipeline gating, browser-based tools, API access, and self-hosted deployment. Open-source availability and hybrid deployment support developers who want to place guardrails across runtime, development, and delivery workflows. The focus is narrower than broader guardrail suites, so it suits teams seeking a simple prompt firewall with injection, secret, PII, policy, and output handling. Teams needing a wider verified feature set or currently available enterprise controls should consider alternatives with those capabilities.
OpenSecureAI Prompt Firewall pros and cons
- Where it wins
- Detects and blocks prompt injection, secrets, and PII
- Supports allow, flag, block, and sanitized text output
- Works across web, API, self-hosted, CLI, and CI workflows
- Where it doesn't
- The verified feature set is narrower than broader guardrail suites
- Paid checkout is not self-serve
- Team seats, SSO, custom rules, and SLA are planned
OpenSecureAI Prompt Firewall fact sheet, pricing and score →
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