LegacyFHIR

Proxy adapter that bridges legacy EHR APIs to modern FHIR standards effortlessly.

Score: 7.4/10ArgentinaHard BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Enterprise healthcare teams face nightmares integrating with legacy EHR systems due to outdated APIs and resistance to switch without ironclad proof.

Solution

LegacyFHIR runs as a secure proxy translating calls between your app and outdated EHR APIs into FHIR-compliant requests/responses. IT teams deploy it in minutes via Docker/Helm, with a dashboard for mapping and monitoring. Standardize integrations without rewriting code or convincing vendors to upgrade.

Target Audience

IT and development teams in enterprise healthcare organizations building integrations with legacy EHR systems

Differentiator

Drop-in proxy with visual mapper for 50+ legacy endpoints to FHIR R4, zero-code config.

Brand Voice

friendly

Features

Proxy Dashboard

must-have22h

Visual editor for API endpoint mappings.

FHIR Translator

must-have28h

Real-time conversion of legacy calls to/from FHIR.

Monitoring Logs

must-have15h

Live traffic logs, errors, and performance metrics.

One-Click Deploy

must-have12h

Generate Docker/Helm configs for self-hosting.

Preset Mappings

must-have20h

Library of common EHR-to-FHIR maps.

Alerting

must-have10h

Email/Slack alerts on proxy failures.

Usage Analytics

nice-to-have12h

Aggregate API call stats and costs.

Multi-Proxy Support

nice-to-have10h

Route to multiple backend EHRs.

Total Build Time: 129 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
created_attimestampNo

proxies

ColumnTypeNullable
iduuidNo
nametextNo
ehr_typetextNo
user_iduuidNo

Relationships:

  • user_id references users(id)

mappings

ColumnTypeNullable
iduuidNo
proxy_iduuidNo
legacy_pathtextNo
fhir_pathtextNo

Relationships:

  • proxy_id references proxies(id)

logs

ColumnTypeNullable
iduuidNo
proxy_iduuidNo
request_datatextYes
timestamptimestampNo

Relationships:

  • proxy_id references proxies(id)

API Endpoints

POST
/api/proxies

Create proxy config

🔒 Auth Required
POST
/api/mappings/:proxyId

Add mapping

🔒 Auth Required
GET
/api/logs/:proxyId

Fetch logs

🔒 Auth Required
GET
/api/deploy/:proxyId

Generate deploy config

🔒 Auth Required
GET
/api/proxies

List proxies

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + Shadcn/UI
Backend
Next.js API Routes + Supabase Edge Functions
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Vercel KV (configs)Resend

Build Timeline

Week 1: Auth, DB, dashboard

40h
  • Proxy/mapping tables
  • Basic UI

Week 2: Mapping editor

38h
  • Visual mapper
  • Preset library

Week 3: Logs & deploy

35h
  • Logging system
  • Config generator

Week 4: Translator core, payments

32h
  • FHIR proxy logic
  • Stripe

Week 5: Alerts & analytics

28h
  • Alerting
  • Usage stats

Week 6: Testing & optimize

25h
  • E2E tests
  • Performance tweaks

Week 7: Launch prep

20h
  • Docs, SEO
Total Timeline: 7 weeks • 238 hours

Pricing Tiers

Free

$0/mo

1k requests/mo

  • 1 proxy
  • Basic mappings

Starter

$15/mo

10k requests/mo

  • 5 proxies
  • Logs & alerts
  • Presets

Enterprise

$99/mo

1M+ requests

  • Unlimited
  • Custom support
  • On-prem option

Revenue Projections

MonthUsersConversionMRRARR
Month 11204%$72$864
Month 670010%$3,500$42,000

Unit Economics

$35
CAC
$900
LTV
3%
Churn
88%
Margin
LTV:CAC Ratio: 25.7xExcellent!

Landing Page Copy

FHIR for Legacy EHRs – No Rewrites Needed

Proxy your old APIs to FHIR. Deploy fast, monitor easy.

Feature Highlights

Visual mapping
Real-time translation
Traffic logs
Easy deploy

Social Proof (Placeholders)

"'FHIR compliance in a day' – DevOps Lead"
"'Bridged our Cerner gap perfectly' – Sys Admin"

First Three Customers

Target FHIR-focused healthcare conferences virtually, offer free setups. Search 'FHIR legacy integration' on LinkedIn, send personalized demos. Post case studies in FHIR slack communities.

Launch Channels

Product Huntr/fhirFHIR DevDaysLinkedIn Healthcare

SEO Keywords

legacy EHR to FHIR proxyEHR FHIR adapterFHIR bridge legacy APIsconvert EHR API to FHIRhealthcare FHIR proxy

Competitive Analysis

InterSystems HealthShare

intersystems.com
Enterprise $$$$$
Strength

Full FHIR platform

Weakness

Complex, expensive setup

Our Advantage

Simple proxy SaaS

Mirth Connect

nextgen.com
Free open source / Paid support
Strength

Integration engine

Weakness

Heavy config, no SaaS

Our Advantage

Cloud proxy with UI mapper

🏰 Moat Strategy

Proprietary mapping library from user data, hard to replicate.

⏰ Why Now?

ONC FHIR mandates 2023+ require compliance; legacy systems lag.

Risks & Mitigation

technicalmedium severity

Translation accuracy for obscure APIs

Mitigation

Community mapping contributions

legalhigh severity

Data privacy in proxy

Mitigation

PHI-optional, SOC2 pursuit

financiallow severity

High compute costs

Mitigation

Tiered pricing

Validation Roadmap

pre-build7 days

Validate with 12 FHIR devs

Success: 70% WOY

mvp42 days

Deploy betas to 4 orgs

Success: Usage >1k reqs each

launch21 days

200 signups

Success: 5% conv

growth60 days

Partnerships with consultancies

Success: MRR double

Pivot Options

  • General API translator
  • FHIR validator tool
  • EHR monitoring SaaS

Quick Stats

Build Time
238h
Target MRR (6 mo)
$4,000
Market Size
$1200.0M
Features
8
Database Tables
4
API Endpoints
5