LLM Security Testing

Every independent LLM security vendor got acquired. We're filling the gap.

PromptProbe is the open, vendor-neutral vulnerability database and evaluation service for prompt injection. Think NVD + Qualys, but for LLMs.

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Robust Intelligence → Cisco Acquired

Lakera → Check Point Acquired

Protect AI → Palo Alto Acquired

Promptfoo → OpenAI Acquired

Two Products, One Mission

Database + Evaluation

An open injection corpus that grows with the community, paired with a paid testing service that tells you exactly where your LLM breaks.

Open Source

Injection DB

A CVE-style database of prompt injection attacks. Severity-scored, tagged by attack type, cross-referenced by model and version.

Structured entries: attack prompt, type, target context, severity
REST API to query and filter the full corpus
GitHub-backed with community contributions via PRs
Model family and version susceptibility mapping

Paid Service

Eval Service

Submit your endpoint. Pick a test suite. Get a structured vulnerability report with pass/fail per attack category and remediation suggestions.

Submit any endpoint URL with auth and prompt template
Async job runner with judge LLM evaluation
JSON + PDF reports with severity heatmaps
CI/CD integration for pre-deployment scanning

How It Works

One API call. Full vulnerability report.

Point PromptProbe at your LLM endpoint. We run hundreds of injection attacks and return a structured report in minutes.

# Submit your endpoint for evaluation
curl -X POST https://promptprobe.polsia.app/v1/evaluate \
  -H "Authorization: Bearer pp_sk_..." \
  -d {
    "endpoint": "https://api.yourapp.com/chat",
    "auth_header": "Bearer your_token",
    "test_suite": "full_corpus",
    "severity_threshold": "medium"
  }

# Response
{
  "job_id": "eval_8f3a2b...",
  "status": "running",
  "tests_queued": 847,
  "results_url": "/v1/results/eval_8f3a2b"
}

Why Now

The market needs a neutral referee

Prompt injection is OWASP's #1 LLM vulnerability. The tools that tested for it just got absorbed by the vendors they were supposed to audit.

Prompt Injection is the top vulnerability in OWASP's 2025 Top 10 for LLMs

$1B+

Combined acquisition value of independent LLM security companies in 2024-2026

3.4x

Multi-agent systems are 3.4x more vulnerable to injection than single-model deployments

Built For

Security teams shipping LLM products

🛡

Security Engineers

Submit your LLM endpoint and get a report of which known injections it's vulnerable to. Prioritize fixes before shipping.

⚙

AI Platform Teams

Run injection tests in CI/CD so regressions are caught before deployment. Test across all your model providers in one place.

📄

CISOs

Get dated, signed vulnerability reports for vendor security questionnaires. Prove your AI systems were tested against known attack patterns.

Injection Corpus

50 curated attacks. Severity-scored. Open.

Browse the full injection corpus. Filter by category and severity. Every attack is available via the REST API at /v1/attacks.

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Get Started

Free API key. No credit card.

Get your API key instantly. Browse the corpus for free. Run evaluations against your LLM endpoints.

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The last independent LLM security testing service

When every security vendor is owned by an AI provider, who audits the auditors? PromptProbe is building the open, neutral standard for LLM vulnerability testing. Community-powered database. Vendor-neutral evaluation. No conflicts of interest.

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