PropFuse

One API to rule all fragmented real estate data sources

Score: 8.0/10MAMedium BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Solo proptech founders face nightmare integrations with fragmented real estate APIs that constantly break and kill development momentum.

Solution

PropFuse aggregates and normalizes data from MLS, Zillow, Redfin, and more into a single, reliable REST API. It handles authentication, rate limits, and schema differences automatically, so solo proptech founders can integrate once and forget about breakage. Get started in minutes with our SDKs for JS, Python, and more.

Target Audience

Solo founders building proptech startups integrating real estate data

Differentiator

Battle-tested normalization layer that auto-maps 50+ real estate APIs to a consistent schema, with 99.9% uptime SLA.

Brand Voice

professional

Features

Unified Query Endpoint

must-have20h

Single POST /query endpoint for listings, comps, ownership data across sources.

Auto-Auth Management

must-have15h

Store and rotate API keys for 10+ providers securely.

Schema Normalization

must-have25h

Returns consistent JSON regardless of source.

Rate Limit Balancing

must-have12h

Distributes queries across providers to avoid throttling.

Webhook Notifications

must-have18h

Push updates for new listings or price changes.

Usage Dashboard

must-have10h

Track queries, costs, and errors in real-time.

Custom Data Blends

nice-to-have15h

Mix data from multiple sources in one query.

SDK Generator

nice-to-have20h

Auto-generate client SDKs for your schema.

AI Query Builder

future30h

Natural language to API query conversion.

Total Build Time: 165 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
stripe_idtextYes
created_attimestampNo

api_configs

ColumnTypeNullable
iduuidNo
user_iduuidNo
providertextNo
api_keytextNo
enabledboolNo

Relationships:

  • user_id -> users.id

query_logs

ColumnTypeNullable
iduuidNo
user_iduuidNo
querytextNo
response_timeintYes
statustextNo
created_attimestampNo

Relationships:

  • user_id -> users.id

API Endpoints

POST
/api/query

Execute unified real estate data query

🔒 Auth Required
GET
/api/providers

List available providers and status

🔒 Auth Required
POST
/api/configs

Add/update API config

🔒 Auth Required
GET
/api/usage

Get usage stats

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind CSS + shadcn/ui
Backend
Next.js API routes + Supabase Edge Functions
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
OpenAPI for proxying external APIsCron for key rotation

Build Timeline

Week 1: Core auth and DB setup

40h
  • User signup/login
  • Basic dashboard
  • DB schema

Week 2: API proxy basics

40h
  • Unified query endpoint
  • 2-3 provider integrations

Week 3: Normalization and dashboard

40h
  • Schema mapper
  • Usage dashboard
  • Auth mgmt

Week 4: Polish and payments

30h
  • Webhooks
  • Stripe integration
  • Playground

Week 5: Testing and launch

20h
  • E2E tests
  • Docs
  • Launch landing
Total Timeline: 5 weeks • 200 hours

Pricing Tiers

Free

$0/mo

No webhooks

  • 100 queries/month
  • 3 providers
  • Basic support

Pro

$25/mo
  • 10k queries/month
  • All providers
  • Webhooks
  • Priority support

Enterprise

$99/mo
  • Unlimited queries
  • Custom blends
  • SLA, VPC
  • Dedicated support

Revenue Projections

MonthUsersConversionMRRARR
Month 11002%$50$600
Month 68005%$1,000$12,000

Unit Economics

$40
CAC
$600
LTV
5%
Churn
85%
Margin
LTV:CAC Ratio: 15.0xExcellent!

Landing Page Copy

Stop Fighting Fragmented Real Estate APIs

PropFuse delivers unified, reliable proptech data so you build faster without integration hell.

Feature Highlights

One API for MLS, Zillow, Redfin +20 more
Auto-normalized schemas
99.9% uptime
Queries in <500ms
Pay per use after free tier

Social Proof (Placeholders)

"'Saved weeks of dev time' - Solo Founder"
"'Finally reliable RE data' - Proptech Dev"
"'Game-changer for my MVP' - Indie Hacker"

First Three Customers

Post in Indie Hackers proptech thread offering free lifetime Pro access for beta testers; DM 10 solo founders from Product Hunt proptech launches; Share MVP demo on r/proptech and Twitter #buildinpublic.

Launch Channels

Product HuntIndie Hackersr/proptechTwitter #proptechHacker News Show

SEO Keywords

real estate api integrationunified mls apiproptech data apizillow api proxyrealtor data aggregator

Competitive Analysis

$0.10/query
Strength

Broad coverage

Weakness

No normalization, high costs

Our Advantage

Fixed monthly + consistent schema

ATTOM Data

attomdata.com
Enterprise only
Strength

Deep data

Weakness

Complex setup, no aggregation

Our Advantage

Solo-friendly, multi-source

🏰 Moat Strategy

Proprietary normalization mappings trained on 100k+ API responses; network effects from user-submitted configs.

⏰ Why Now?

Proptech boom post-2023 with remote work; AI agents need reliable RE data; API providers raising prices/breaking changes.

Risks & Mitigation

technicalmedium severity

External API downtime cascades

Mitigation

Multi-provider failover + caching

marketlow severity

Low adoption by solos

Mitigation

Free tier + PH launch

executionmedium severity

Overrunning build timeline

Mitigation

MVP scope freeze

legalhigh severity

API ToS violations

Mitigation

Proxy only, no resale

Validation Roadmap

pre-build7 days

Interview 10 proptech solos on Discord

Success: 5+ confirm pain >$25/mo willingness

mvp14 days

Beta with 3 providers

Success: 20 signups, 5 paying

Pivot Options

  • Expand to non-RE verticals like auto listings
  • White-label for agencies
  • Data enrichment service

Quick Stats

Build Time
200h
Target MRR (6 mo)
$2,000
Market Size
$50.0M
Features
9
Database Tables
3
API Endpoints
4