PromptShield
Continuous, reproducible prompt-injection evidence — graded for your auditor.
Pricing

Evidence-grade testing.
Plans from $79/mo.

Self-serve checkout opens with our private beta — reserve a plan and we'll email you when your tier goes live. No card charged until activation. Free 5-attack scan runs without an account.

Pre-CI reconnaissance
Starter
$79 /mo

Prove the threat surface to your staff eng. 25 OWASP-LLM-Top-10 attacks against one endpoint, severity-graded PDF in under 2 minutes — no auth, no SDK, no CI wiring yet.

  • Severity-graded PDF — share with your tech lead in 1 click
  • 25 attacks across 9 of 10 OWASP LLM categories (LLM08 shipping)
  • Monthly catalogue refresh as new techniques drop
  • Single-endpoint, on-demand scans (CI gate ships with Team)
  • Email support
Reserve Starter →
Most popular
Block regressions before prod
Team
$299 /mo

Continuous prompt-injection coverage in your existing CI. PR-comment payloads, Slack alerts on regression, signed PDFs your AppSec team can attach to release tickets.

  • PR comment with the exact offending payload + diff against last green run
  • GitHub Actions / GitLab CI gate — block merge on regression
  • Slack alert when a previously-passing attack starts failing
  • 217+ catalogued attacks across OWASP LLM Top 10
  • Up to 5 endpoints
  • Signed PDF for engineering use (annual auditor-grade evidence on Business)
  • Priority email support
Reserve Team →
Survive procurement + your SOC 2 review
Business
$899 /mo

Auditor-grade evidence and a human-reviewed annual red-team advisory. Built for security teams answering 200-row vendor-security questionnaires.

  • SOC 2 / ISO 42001 evidence package — one PDF, dated, signed, mapped to controls
  • Annual red-team advisory authored by the PromptShield research team
  • Custom attack catalogue entries for your model + integrations
  • Unlimited endpoints
  • SSO / SAML
  • Dedicated Slack channel
  • SLA: 4-hour response
Talk to a founder →

Endpoint = one HTTPS URL accepting prompts. RAG, chat, and tool-calling backends each count separately.

Add-on
Annual Red-Team Report

A signed, human-reviewed red-team advisory produced by the PromptShield research team. Includes 12 months of catalogue coverage, CVSS narrative, and remediation recommendations. Suitable for Board / CISO reporting.

$1,499

one-time · per report

FREE Try before you buy

Run a free 5-attack scan first.

No credit card. No signup. Paste your endpoint, get a severity-scored teaser report in under 90 seconds.

Run free scan →
Common questions
What counts as an "endpoint"?

Any HTTP endpoint that accepts a prompt and returns a completion — OpenAI-compatible, Anthropic, custom model serving, or a REST API wrapping any LLM.

Do you store my prompts or responses?

No. PromptShield processes scans in-memory and discards raw payload data after report generation. Report PDFs are stored encrypted: 30 days on the free teaser, 90 days on paid plans. Full retention details on /privacy.

Can I test production endpoints?

We strongly recommend staging or sandbox targets. The teaser scan and Starter plan limit targets to non-.gov, non-.mil, and non-critical-infrastructure domains.

Is Stripe required to start?

Not for the free teaser scan — that runs without an account. Paid plans are in private beta: reserve a tier and we will email you when self-serve Stripe checkout opens. No card charged until your account is activated.