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Benchmarked on 2,700+ adversarial prompts

AI Safety for Kids.
Security for Enterprise.

PromptSentry is the AI security guardrail for educational and corporate AI applications. Protect your users from jailbreaks, PII leaks, and explicit content with a multi-stage detection pipeline. AI-verified verdict in under 900ms (p50), under 1.4s (p95).

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benchmark-results.log
PromptSentry · Latest Eval Run Production tests: 1,496 passing
Attack defense
98.92%
1,830 / 1,850 blocked
Harmful content classification
99.33%
887 / 893 correct
HarmBench · cybercrime
96.7%
Garak · prompt injection
100%
TrustLLM · jailbreak (scenario subset)
100%
AdvBench · harmful behaviors
99.6%
HarmBench · human jailbreaks
99.8%
EdTech

Keep kids safe on every AI surface

Schools, families, and EdTech platforms get a guardrail that filters explicit content, blocks predatory patterns, and stops kids from being manipulated by AI — with AI-verified inspection on every prompt.

  • Age-appropriate content filtering
  • Grooming and manipulation detection
  • Plain-language safety policies for educators
Explore EdTech protection
Enterprise

Ship AI without shipping the risk

Engineering teams wrap any LLM endpoint with a five-line code change and get jailbreak defense, PII protection, and policy enforcement — without rewriting the application.

  • Prompt injection and jailbreak defense
  • Centralized AI Policy Enforcement
  • SDK and MCP-native integrations
Explore enterprise security
Works with any LLM provider
OpenAI
Anthropic
Google Gemini
Mistral
Hugging Face
MCP
Self-hosted

Defense across the AI surface

Wherever AI shows up — in the employee browser, a classroom app, your product, or a developer's IDE — PromptSentry inspects the prompt before the model sees it.

For your workforce

Route your sanctioned AI traffic through PromptSentry for full visibility into authorized AI usage. Set centralized policies that block, redact, or warn when employees attempt to send PII, source code, or credentials to external models.

For your apps

One API call before your LLM call. We block prompt injections, system prompt extraction attempts, and unsafe outputs before they reach your end users.

For code assistants

If your developers use MCP-compatible AI tools (Cursor, Claude Code, agentic frameworks), PromptSentry integrates as an MCP server to inspect prompts before they reach the model.

Multi-stage detection. AI-verified every time.

The pattern fast-path runs in under 1ms. Explicit attacks are stopped immediately. Everything else gets an AI-assisted verdict — under 900ms (p50), under 1.4s (p95).

Speed where it matters, judgment where it counts.

request pipeline
Incoming prompt
From user, app, or IDE
1
Fast-path pattern check
Explicit-attack heuristics, PII detection, encoding tricks
<1ms
2
AI-assisted verdict
Non-trivial prompts classified by frontier model
<900ms p50 · <1.4s p95
Forwarded to your LLM
Or blocked, redacted, escalated per policy

Ship AI without shipping the risk

Talk to our team about deploying PromptSentry for your school, product, or workforce.

Request a demo
Pricing starts at $9.99/mo for families, up to custom Enterprise SLAs. See all plans