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Add Prescribing to Your Product

Your AI already knows what the patient needs. The next step requires a physician. This guide compares the three ways to add real prescribing to an app.

A clinical summary POSTed to the Appendix prescribing API returning 200 OK, and below it the top half of the patient's iPhone showing the text: Sarah Chen, MD from Appendix sent your prescription to the pharmacy

Why apps hit this wall

Symptom checkers, care-navigation tools, lab-interpretation products, and AI health assistants all reach the same point: the software has done the clinical reasoning, and the patient flow stops, because acting on it — writing a prescription — requires a licensed physician.

Until recently there were two options: stand up your own MSO/PC and hire clinicians, or sign an enterprise contract with a clinical staffing platform. A prescribing API is the third option: keep your product, and add the physician as an API call.

The three ways to add prescribing

1. Build your own clinical operation

Recruit licensed clinicians in every state you serve, stand up the MSO/PC corporate structure, wire up e-prescribing, and run clinical operations forever. Months of work and red tape before the first prescription.

2. White-label telehealth platform

A clinical staffing platform provides the clinician network and virtual-care infrastructure under your brand. Reached through an enterprise sales cycle and an implementation project: clinician training, record-system integration, launch measured in quarters.

3. Prescribing API

Your app sends a clinical summary to the API. A board-certified physician reviews it and prescribes when appropriate. You get the outcome by webhook. Self-serve sandbox today, production after review — no sales call.

Build your ownWhite-label telehealthPrescribing API
Time to first prescriptionMonthsQuartersDays
Getting startedHiring and legal workSales cycle + implementationSelf-serve sandbox key
What you operateThe entire clinical practiceYour program on their platformJust your product
Pricing shapePayroll + overheadEnterprise contractPer completed review

How a prescribing API works

  1. 1
    Send a clinical summary

    Your app POSTs the encounter — chief complaint, history, medications, allergies — to the API. If the summary is incomplete, the API tells you what's missing before anything reaches a physician.

    A POST request to the Appendix prescribing API with a clinical summary — chief complaint, history, medications, allergies — returning 200 OK and final_decision_ready: true
  2. 2
    The patient consents

    Your user approves the request on an OAuth-style consent page hosted by Appendix and verifies their identity. Enterprise organizations that obtain and document consent through their own intake can create patients via API and skip this page.

    The OAuth-style consent page on a phone: SampleCo works with Appendix to bring you a real doctor, with a Continue button
  3. 3
    A physician reviews

    A licensed, board-certified U.S. physician reviews the submission — and can message the patient with follow-up questions when needed. Every request gets individual physician judgment.

  4. 4
    The prescription is sent

    When a prescription is appropriate, it's e-prescribed and the patient picks their pharmacy — any pharmacy in the U.S.

    A text message from Appendix on the patient's phone: Sarah Chen, MD from Appendix sent your prescription to the pharmacy
  5. 5
    Your app gets the outcome

    A signed webhook (plus a polling endpoint) reports the outcome to your app: status, prescription count, and whether a physician message is waiting.

What you don't have to build

A physician network licensed in all 50 states and DC
E-prescribing to any U.S. pharmacy
Patient identity verification
Consent and intake flows
Clinical documentation and record-keeping
Physician-patient follow-up messaging

Frequently asked questions

Do I need to hire doctors or stand up an MSO/PC to add prescribing to my app?

No. With a prescribing API, the API provider is the medical practice — you don't form an MSO/PC or hire clinicians. Appendix employs board-certified U.S. physicians who review each request your app submits and prescribe when medically appropriate. Your product integrates by API; you never recruit, credential, or schedule clinicians.

How long does it take to integrate a prescribing API?

A working sandbox integration typically takes a day: self-issue a free test key, send a clinical summary to the API, and receive a simulated physician decision. Production access is granted after a review of your use case. Compare that with standing up your own clinical operation (months of work and red tape) or an enterprise white-label implementation (typically quarters).

Who actually writes the prescription?

A licensed, board-certified U.S. physician at Appendix. Every request is individually reviewed by a physician, and a prescription is written only when the physician judges it medically appropriate. Appendix does not prescribe controlled substances.

How does patient consent work?

In the standard integration, your user approves each request on an OAuth-style consent page hosted by Appendix, consents to care with Appendix directly, and verifies their identity. Organizations that obtain and document patient consent through their own intake can use the enterprise integration instead, which creates patients via API and skips the hosted consent page.

What does a prescribing API cost?

Appendix pricing is outcome-based: you pay per completed physician review, with complete and incomplete reviews priced differently. There are no platform fees, no per-prescription charges, and no contract minimums to start. Sandbox testing is free. Current rates are published in the pricing documentation at appendix.com/docs/prescribing-api/pricing. Contact hello@appendix.com for volume pricing based on your use case and expected monthly volume.

What conditions can be treated?

Appendix physicians handle primary-care and urgent-care requests across 80+ conditions — respiratory, dermatology, infectious disease, women's health, men's health, and more. Controlled substances are never prescribed. The full list is at appendix.com/docs/conditions. Have a different use case? Contact hello@appendix.com and let's talk it through.

Where is this available?

Clinical services are available in all 50 U.S. states and Washington, DC. Prescriptions are e-prescribed to the patient's chosen U.S. pharmacy.

Ship it this week

Sandbox keys are self-serve, free, and instant. Send your first clinical summary today; talk to us only when you want to.

Building something that needs a deeper integration? hello@appendix.com