Assurance
You own the safety case. We give you what you need to build it.
Guardrails in every agent, evaluation you can evidence, nine drafted assurance documents, our published DCB0129, and an individual review before anything goes live.
01 · Who does what
Your agent, your ideas. Our platform behind you.
Ostify is a platform that supports you. Everything you build belongs to you.
Yours
- Your agent, and every idea in it. The intellectual property is always yours
- The content it draws on, and which passages it may use
- Clinical sign-off, with your own clinical safety officer
- Your DCB and DTAC documentation, much of which we draft for you
How Ostify supports you
- A secure health cloud environment to build, test and run your agent
- Built-in guardrails, Osti-gen and Osti-judge
- Nine assurance documents drafted for you to review
- Our published DCB0129 to reference in your safety case
- An individual review before your agent goes live
Your ideas stay yours.
We cannot see your build or your evaluations until you submit them for review. We are clinicians first, so we know what a good idea is worth. Build freely, and we will help you keep it safe.
02 · By plan
What each plan includes.
| Assurance support | Always free | Founder · beta |
|---|---|---|
| Built-in guardrails and crisis signposting | ✓Included | ✓Included |
| Osteoclast evaluation with Osti-gen and Osti-judge | –Not included | ✓Included |
| Nine assurance documents drafted by Osteocite | –Not included | ✓Included |
| Assurance dashboard for your own documents | –Not included | ✓Included |
| Published Ostify DCB0129 | ✓Available | ✓Available |
| What stays with you | Evaluation, your clinical safety officer, DCB and DTAC work | Signing off every document, your clinical safety officer, DCB and DTAC work |
Nine documents drafted from your build and evaluation.
Each record is drafted from your agent. Read it, edit anything that isn’t right, then sign it as yours. The dashboard holds them alongside your own compliance documents, such as your DTAC form and DPIA.

- Intended Purpose Statement
- Device Classification Record
- Scope Boundary and Crisis Response Specification
- Source Document Register
- Clinician Review Record
- Evaluation Report
- Transferred Controls Acceptance
- Content Rights Warranty
- Change and Re-Review Record
No agent reaches a patient until we have reviewed it.
We check your content and guidelines, confirm the agent stays outside medical device territory, and try to make it misbehave, including with prompt injection. Approval is not a safety guarantee. That decision stays with your clinical safety officer.
- Review fee
- Typically £800–£1,000A one-off fee that varies with your agent’s size and scope. We will quote before we start, or apply for Osticellerate to pay nothing upfront.
- After changes
- Re-approvalEdit your content or key settings and the agent goes back to review before patients see the change.
Pilot with real patients.
Once your agent passes review, you get a dedicated link and a generous message allowance, so you can pilot it with real patients and learn what works before you scale.
- Your link
- A dedicated patient linkShare it wherever your patients will find it.
- Your messages
- A generous message allowancePlenty of messages to run your pilot, included with approval.
- After the pilot
- Move to productionWhen you are ready to scale, move onto Ostify production.
Scale in production, and stay in control of cost.
After your pilot, your agent moves onto Ostify production. All our LLM products run on foundational models in our secure environment.
- Packages
- A set number of conversationsChoose a package with a predefined number of patient conversations each month.
- Pay-as-you-go
- Top up as you goNo commitment. Buy credit in advance and use it as your patients need it.
- Billing
- Always prepaidYou pay before you use it, so there are no surprise bills and you remain in control.
- Where it runs
- Our secure environmentFoundational models hosted in Ostify’s secure health cloud.
05 · Standards
Where Ostify agents sit.
- Intended use
- NICE ESF Tier BInforming, communicating with and supporting patients. Not diagnosis, triage or treatment decisions.
- Alignment
- DSPT and DTACAgents built on Ostify are aligned with both. We are finalising completion, pending penetration testing and Cyber Essentials.
- Clinical safety
- DCB0129 publishedOur own clinical safety case, for you to reference in yours.
- More support
- Apply for additional assuranceWhile we build out our assurance service, we can help some products further. Write to info@ostify.co.uk; every application is reviewed and scope is agreed in writing.
Discuss your assurance requirements.
Tell us where your project is and what it needs. An enquiry carries no obligation.