Simple, public pricing
No sales call.
AiDren costs £49, £149 or £399 a month. Every plan includes all six security layers, unlimited team seats and a 14-day free trial with no card. The plan sets your monthly fair-use allowance of checked requests, not which features you can switch on.
Full protection on every plan.
Every plan is the full product. The tier sets your monthly fair-use allowance. Unlimited team seats.
Starter
For shipping your first production agent.
- All six security layers
- Unlimited team seats
- Custom policy per key
- Audit log + CSV export
Growth
For teams scaling AI across products.
- All six security layers
- Unlimited team seats
- Custom policy per key
- Audit log + CSV export
Scale
For high-volume, business-critical systems.
- All six security layers
- Unlimited team seats
- Custom policy per key
- Audit log + CSV export
Prices are in GBP. If you’re outside the UK, checkout shows and charges the equivalent in your local currency, and your subscription renews in it. The request number is a fair-use guide, not a hard wall. If you go over, we’ll email you about a 10,000-request top-up (£19) or moving up a tier. We won’t cut you off mid-month. Model-file scans and agent egress reports don’t count toward it. Annual plans save two months. Pay monthly or yearly, cancel any time. Higher volume? Talk to us.
What is on every plan
There are no feature tiers. Starter, Growth and Scale differ only in allowance.
- Prompt-injection screening with a judge model, multi-turn aware and fail-closed.
- Output and data-leak scanning for PII, secrets and system-prompt leaks.
- Model-file scanning for pickle, safetensors, GGUF, ONNX, joblib and Keras.
- Agent egress monitoring with the worker-agent package.
- Custom policy per key with shadow testing.
- Team accounts with unlimited seats and an audit log, plus the pre-deploy attack test.
Why the price is public
Several comparable tools put you through a sales conversation for full coverage. Lakera's pricing page lists a free Community plan (10,000 requests a month) and an Enterprise plan arranged with sales. LLM Guard is free and open source, but you host and maintain it. AiDren sits between the two: hosted, self-serve and month to month. Facts last checked 1 October 2026; see the full comparison.
Is there a free trial?
Yes. The 14-day trial needs no card up front and covers 25,000 checked requests. Every plan, and the trial, includes the full product.
What counts as a checked request?
A checked request is one AiDren screens on its way to your model. Model-file scans and agent egress reports don't count toward your allowance.
What happens if I go over my allowance?
The number is a fair-use guide, not a hard wall. If you go over, I'll email you about a 10,000-request top-up (£19) or moving up a tier, and I won't cut you off mid-month. Only sustained use far above the allowance is rate-limited with a 429.
Are team seats extra?
No. Every plan includes unlimited team seats, custom policy per key and an audit log with CSV export.
How does annual billing work?
Annual plans save two months: Starter is £490 a year, Growth £1,490 and Scale £3,990. You can pay monthly or yearly and cancel any time.
What currency am I charged in?
Prices are in GBP. If you're outside the UK, checkout shows and charges the equivalent in your local currency, and your subscription renews in it.
What happens after the trial?
Upgrade to keep your proxy running. If you don't, AiDren pauses your traffic rather than letting it through unprotected.
Try the full stack
free for 14 days.
No card, no sales call, no SDK rewrite.
Start free trial