OpenSecureAI Prompt Firewall
Runtime guardrails for unsafe LLM text
At a glance
- Editor score8.8 / 10
- PricingFree plan · paid from $49/mo
- Best forDevelopers needing a simple prompt firewall
- Free planYes
- Paid from$49/mo
- Prompt injection defenseYes
- Founded2026 · Global — Remote First
- Facts checked21 Sep 2026
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
Our verdict on OpenSecureAI Prompt Firewall
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 pricing
All 3 OpenSecureAI Prompt Firewall plans and prices →
OpenSecureAI Prompt Firewall fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $49/mo |
| Deployment | Hybrid |
| Prompt injection defense | Yes |
| PII detection | Yes |
| Jailbreak detection | Yes |
| Custom policies | Yes |
| SDK languages | TypeScript |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Support | Email, Community |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan · paid from $49/mo (source) |
| Website | opensecureai.com |
| Facts checked | 21 Sep 2026 |
Alternatives to OpenSecureAI Prompt Firewall
- Enkrypt AI GuardrailsBroad runtime controls for teams securing production AI systems.9.0
- VotalAIBroad hybrid guardrails for prompts, agents, data, tools, and audit workflows.—
- OpenAI GuardrailsA flexible, OpenAI-focused guardrail framework for validating LLM workflows.—
See all OpenSecureAI Prompt Firewall alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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