Every plan runs the same detection engine, so the free key blocks the same attacks the paid ones do. Free covers a side project. Paid adds production volume, your own allow and block phrases, IP threat intelligence, higher rate limits, and one toggle that keeps your traffic out of the shared network. That sharing starts on, and you switch it off in dashboard settings.
Pricing last reviewed: 12 September 2026
Covers a side project at no cost
No card. Your key on the next screen.
Covers a live app with real users
Instant access • Cancel anytime
Everything in Free, plus:
Covers a team running at volume
Instant access • Cancel anytime
Everything in Starter, plus:
A paid plan renews at the same price each month until you cancel, and there is no overage billing. Requests past your plan's monthly limit come back as an HTTP 429 carrying the date your quota resets, and your traffic flows again on that date or the moment you upgrade.
Every plan runs the same detection engine, starting at $0/month. The free tier gives you 10,000 validations a month. Starter is $29/month for 500,000 validations. Business is $99/month for 1,000,000 validations. No per-request fees, no hidden costs, and no credit card for the free tier.
Yes. SafePrompt gives you 10,000 API validations a month at no cost, on the same detection engine paid plans run: pattern detection, external reference detection and AI validation. No credit card. Sign up with your email and your key is on the next screen. Blocked attacks from free-tier traffic join the shared network defence. Paid plans can turn that contribution off in Privacy Settings.
The free tier includes 10,000 validations a month, the full detection engine (the same one paid plans run), pattern and AI validation, session tracking, and the shared network defence. Export your data yourself from the dashboard, and erase the identifiable data from your last 24 hours there too. Paid plans add production volume, IP threat correlation and an intelligence opt-out.
Yes. Confirm your email and your key appears on the next screen: 10,000 validations a month, no card and no time limit. The one condition is that attacks blocked on the free plan join the shared network defence; paid plans can switch that off. Until you do, a paid plan stores every request you send, safe and blocked, while the free plan stores only the prompts we block.
Yes. Upgrade any time, downgrade at the end of any billing cycle. No contracts and no penalties.
Yes. Cancel any time from your dashboard. No cancellation fees and no questions asked.
Your email is all we need. You get a working key on the next screen and your first check runs in minutes.
Every plan runs the same engine: pattern detection, AI validation, session tracking and the shared network defence.
Yes. Upgrade from your dashboard settings any time. Your new quota is live as soon as payment confirms.
SafePrompt checks the text before it reaches your model, so it works with OpenAI, Anthropic, Google, Mistral and anything else you run. Switch providers any time with no change on your side, and export your data from the dashboard on any plan.
SafePrompt is one API call with nothing to run: no model to host, no GPU to size, no rules to maintain, and a free tier so you can start today. Run LLM Guard self-hosted if your data can never leave your own machines.