Simple, credit-based pricing.
Every plan carries one AI staff member and a monthly allowance of credits. A credit is £1.00 of security work — pay for what your engineer does, nothing you don't.
One engineer, one asset, always on
ex VAT · billed monthly
400 credits
38 million tokens / month
- One web or API application tested continuously
- 100 alerts investigated with evidence
- Credit roll-over, one month
- Overage billed at the standard £1.00 per credit
- Support by email, next working day
A shared engineer for a small team
ex VAT · billed monthly
1,000 credits
95 million tokens / month
- Three web or API applications tested continuously
- 150 alerts investigated with evidence
- Credit roll-over, one month
- Overage billed at the standard £1.00 per credit
- Support by email, next working day
Full attack surface for a growing org
ex VAT · billed monthly
2,800 credits
267 million tokens / month
- Four web or API applications tested continuously
- One network or cloud environment
- One mobile app on a physical handset
- 500 alerts investigated with evidence
- Support by email and phone, same day
Per seat, metered, unlimited on usage
ex VAT · minimum 5 seats
Metered at £0.95
Usage-based, billed in arrears
- Unlimited applications, network, cloud and mobile on usage
- Usage metered monthly in arrears at £0.95 per credit
- Additional AI staff members at £549 each
- Priority response, same day, named engineer
A credit is £1.00 of metered work — roughly 95,455 tokens. It buys a web or API app tested continuously for a month (250 credits), a network or cloud environment (300), a mobile app on a handset (600), or one alert investigated with evidence (1).
What comes as standard.
Own email and phone number
Every AI staff member gets its own address and number to work from.
Live voice, vision and meetings
It talks through findings, sees your screen, and attends meetings.
Independent cross-check
Every finding is verified by a second, independent pass before you see it.
UK engineer sign-off
A UK security engineer signs off on every report before it is released.
Free retests after a fix
Ship a fix and it retests the finding at no extra cost.
Auditor and questionnaire reports
Reports for auditors and security questionnaires, free of charge.
OWASP, MITRE ATT&CK, CVSS
Findings mapped to OWASP, MITRE ATT&CK and scored with CVSS.
Nebula engine, on every plan
The same autonomous Nebula engine powers testing at every tier.
Compare every plan.
| Feature | Individual | Team | Business | Enterprise |
|---|---|---|---|---|
Allowance | ||||
| Credits included | 400 | 1,000 | 2,800 | Metered £0.95 |
| Tokens per month | 38 million | 95 million | 267 million | Usage-based |
| Overage rate | £1.00 | £1.00 | £1.00 | £0.95 |
| Credit roll-over | 1 month | 1 month | 1 month | n/a |
Team and staff | ||||
| AI staff members | 1 | 1 | 1 | 1, more at £549 |
| Named seats | 1 | 3 | 10 | Per seat |
Attack surface | ||||
| Web or API apps, continuous | 1 | 3 | 4 | Unlimited on usage |
| Network or cloud environments | On credits | On credits | 1 | Unlimited on usage |
| Mobile app on a physical handset | On credits | On credits | 1 | Unlimited on usage |
| Alerts investigated | 100 | 150 | 500 | On usage |
Included on every plan | ||||
| Own email address and phone number | ||||
| Live voice, vision and meeting attendance | ||||
| Independent cross-check on every finding | ||||
| UK engineer sign-off before release | ||||
| Retests after a fix | Free | Free | Free | Free |
| Reports for auditors and questionnaires | Free | Free | Free | Free |
| OWASP, MITRE ATT&CK and CVSS output | ||||
Support | ||||
| Response | Email, next day | Email, next day | Email + phone, same day | Priority, same day, named engineer |
Extend any plan.
Available on every plan. Buy what you need, when you need it.
Additional AI staff member
£549 / month
A second AI staff member on your account, each with its own email and number.
Credit top-ups
£500 · £1,900 · £4,500
Top up your allowance any time: 500 credits for £500, 2,000 for £1,900, or 5,000 for £4,500.
Proof engagement
£2,500 · £5,000
A point-in-time deep engagement on one asset: £2,500 for a single pass, £5,000 in depth.
The fine print
- All prices are exclusive of VAT. UK VAT at 20% is added at checkout; the reverse charge applies for qualifying overseas business customers.
- Every plan is a monthly rolling contract, cancellable with 30 days’ notice.
- Annual plans are billed as two months free — a 17% discount on the monthly price.
- Unused credits roll over for one month, capped at one month of your plan allowance.
- Overage is charged at the standard rate, never a penalty rate. Above ~5,000 top-up credits, moving up a tier is cheaper.
- Enterprise is sold per seat (minimum 5) with usage metered monthly in arrears at £0.95 per credit.
See Nebula find real vulnerabilities.
A 30-minute live demo on your own assets — no commitment. We'll help you pick the plan that fits your attack surface.