Build your own healthcare agents.

You know your patients and your service. Ostify gives you the tools to turn that into a safe, tested agent, without waiting on anyone else.

Build and preview your very own app, free. A simple one takes about 10 minutes. Then scan a code and try it on your phone, just as a patient would see it.

Build your own How it works
Supported byMicrosoft for Startups
Bone Health Clinic AssistantAnswers only from approved clinic content

What exercise is good for my bones?

Brisk walking, dancing and strength exercises all help. If you have osteoporosis, check with your GP first.

Exercise and your bones · approved

What should I wear for my DEXA scan?

Clothes without zips or metal buckles are best. No special preparation is needed.

Your DEXA scan · approved
Illustrative example

The product

See what you will build with.

The same tools, from first upload to a tested agent. No code, and nothing reaches a patient until it has been reviewed.

Watch the video
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The Ostify add your content screen
  1. Your content in

    Upload leaflets, guidelines or policies, or write your own question-and-answer pairs.

  2. Only what you approve

    Every file is split into passages. The agent can only use the ones you sign off.

  3. Readiness at a glance

    See how close your agent is to ready, step by step.

The best tools in healthcare have always been shaped by the people using them.

What you can build

Four starting points. The rest is yours.

Every agent answers only from content you have approved.

  • Patient-facing
  • Public-facing
  • Staff-facing
  1. 01
    Patient-facing

    Condition support and patient education

    A companion for the questions patients have between appointments, drawn from your leaflets, guidelines and teaching.

    Can I still exercise after my DEXA scan?

    Yes. A DEXA scan does not change what you can do afterwards.Your DEXA scan · approved

  2. 02
    Patient-facing

    Before and after a procedure

    Your service’s own preparation and recovery instructions, available at 2am, without another call to the ward.

    When do I need to stop eating before my colonoscopy?

    Your appointment letter gives the exact time. The preparation guide explains each step.Preparing for your colonoscopy · approved

  3. 03
    Public-facing

    Research participant information

    Let potential and enrolled participants ask about your study, answered from your approved participant information sheet.

    Can I leave the study if I change my mind?

    Yes. You can withdraw at any time, without giving a reason.Participant information sheet · approved

  4. 04
    Staff-facing

    Staff induction and local policies

    Upload your local policies and guidelines, and new and existing staff can find what they need through a simple chat, any time of day.

    Who do I escalate to if a patient deteriorates overnight?

    Bleep the on-call registrar through switchboard, then follow the deteriorating patient policy.Deteriorating patient policy · approved

Need a different use case? We are working on more templates. If there is a use case or template you would like us to prioritise, get in touch. Our team is always happy to help.

Suggest a template

Your ideas, protected

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.

  • A private sandboxOnly you can see what you build.
  • Evaluations stay privateUntil you choose to submit them.
  • Your IP, alwaysEvery agent and idea belongs to you.
Yours to take anywhere.

Because the IP is yours, you decide where your agent goes next:

  • Offer it to NHS trusts
  • Bring it to your own clients
  • Run it as a not-for-profit initiative

How it works

From idea to production.

Each tool takes its name from bone biology. Osteoblasts lay down new bone, osteoclasts test and remodel it, and osteocytes maintain it.

  1. 1BuildOsteoblast

    Sign up free, build from your own content, and preview your very own app on your phone.

    Always free
  2. 2EvaluateOsteoclast

    Test and remodel your agent against a fixed question set, and review every answer.

    Founder plan · beta
  3. 3Assure and complyOsteocite

    Get your assurance documents drafted and keep them in one place.

    Founder plan · beta
  4. 4Submit for reviewLive review

    We review your agent individually before any patient can reach it.

    One-off review

Then, once approved

  1. 5PilotA dedicated patient link and a generous message allowance to pilot with real patients.
  2. 6ProductionScale on a monthly package or pay-as-you-go, always prepaid.

See every stage in detail

Guardrails

What happens to every question a patient asks.

Six checks, in this order, built into every agent. The urgent ones run before the AI sees the question. You can add your own rules on top.

  1. 01
    Emergency words

    Words and phrases you choose trigger your emergency message straight away.

    Emergency signposting
  2. 02
    Urgency detection

    Catches emergencies described in everyday language, like “the side of my face has gone funny”, and signs of a mental health crisis.

    Emergency signposting
  3. 03
    No clinical decisions

    Declines dose changes, diagnosis, interpreting symptoms or results, prognosis, and anyone claiming to be staff to get clinical information.

    Declined and referred
  4. 04
    Harmful content

    Screens for hate, self-harm, sexual and violent content. Any mention of self-harm goes to crisis support.

    Crisis support
  5. 05
    Relevance

    If your approved content does not cover the question, the agent says so rather than guessing.

    Your out-of-scope message
  6. 06
    Your content only

    The answer is written only from your approved passages, cites only your sources, and is screened again before it is shown.

    Answer shown

If a check fails, it fails safe. The question is declined, not answered.

Attempts to trick it are stopped. Every question is screened for attempts to override the agent’s instructions (prompt injection), and the standard test set attacks every agent the same way.

Nothing is kept. Question and answer text is never logged.

Who does what

Your agent, your ideas. Our platform behind you.

You lead. Ostify 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

Need more assurance support? While we build out our assurance service, we can help some products further. Write to info@ostify.co.uk and we will review your application.

For cliniciansBuild an agent for your own service. For clinician foundersTurn what you know into a business you own. For organisations · coming soonGive your clinical teams a controlled place to build.

Questions

Common questions.

What does it cost?

Building is free, and always will be, for up to 10 MB of clinical content. That includes previewing your own app on your phone. Evaluation and assurance drafting come with the Founder plan, currently in beta. Live review is a one-off fee that varies with your agent, but is typically £800–£1,000, and approval comes with a dedicated patient link and a generous message allowance for your pilot. In production, choose a package of patient conversations each month or pay-as-you-go, always paid in advance. With Osticellerate, strong use cases can pay nothing until their first patient. See plans.

Why not use an off-the-shelf product?

Off-the-shelf tools are built for every service, so they fit none exactly. With Ostify, the agent follows your pathway, your content and your rules, and you can change it whenever your service changes.

Can I put an agent live as soon as I have built it?

No. Only agents that have passed an Ostify live review can be reached by patients, and changing content or key settings sends them back for review.

Who is responsible for clinical safety?

You are. You own and manufacture the agent, and your clinical safety officer signs it off. Our guardrails, evaluation tools, drafted documents and published DCB0129 support your safety case.

Can Ostify see what I build?

No. We cannot see your build or your evaluations until you submit them for review, and everything you build remains your intellectual property.

Where is data processed?

Patient conversations are processed in the UK and never stored. Evaluation and assurance are processed within Europe. See our privacy policy.

Start with the content you already trust.

Your agent stays private in the sandbox until you decide to take it further.

Build your own Talk to us