MLSBridge.io

Instant MLS API proxy for proptech startups – no IDX approval needed.

Score: 7.9/10United StatesMedium BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Small proptech startups struggle to integrate with legacy MLS systems, blocking their ability to serve small real estate businesses.

Solution

MLSBridge acts as a secure proxy to legacy MLS systems, handling authentication, rate limits, and data normalization into RESO standards. Small proptech startups connect once via simple API keys and access clean, unified real estate data without building custom integrations. It enables rapid deployment of listing tools for small real estate businesses.

Target Audience

Small proptech startups building tools for small real estate businesses

Differentiator

Proxy-only model with 99.9% uptime SLA and automatic MLS credential rotation, unlike direct IDX brokers requiring lengthy approvals.

Brand Voice

professional

Features

API Key Onboarding

must-have4h

Generate secure API keys for proxy access to MLS data.

Data Normalization

must-have8h

Convert legacy MLS formats to RESO Web API standards.

Rate Limit Management

must-have6h

Queue and throttle requests to comply with MLS rules.

Search Endpoints

must-have10h

Query listings, agents, offices by criteria like price, location.

Usage Dashboard

must-have6h

Track API calls, errors, and quotas in real-time.

Webhook Notifications

nice-to-have8h

Push updates on new listings or price changes.

Custom Field Mapping

nice-to-have6h

User-defined mappings for non-standard MLS fields.

Analytics Reports

nice-to-have4h

Export usage and query performance reports.

Total Build Time: 52 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
mls_credentialstextNo

Relationships:

  • one-to-many with api_keys

api_keys

ColumnTypeNullable
iduuidNo
user_iduuidNo
key_hashtextNo
usage_countintNo

Relationships:

  • foreign key to users.id

usage_logs

ColumnTypeNullable
iduuidNo
api_key_iduuidNo
endpointtextNo
timestamptimestampNo

Relationships:

  • foreign key to api_keys.id

API Endpoints

GET
/api/listings

Fetch normalized listings

🔒 Auth Required
POST
/api/search

Advanced MLS search

🔒 Auth Required
GET
/api/usage

Get usage stats

🔒 Auth Required
POST
/api/keys

Create API key

🔒 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
Resend for emailsCron for credential refresh

Build Timeline

Week 1: Core auth and DB setup

20h
  • User signup
  • MLS credential storage
  • Basic dashboard

Week 2: Proxy API endpoints

25h
  • Search endpoint
  • Normalization logic

Week 3: Usage tracking and dashboard

20h
  • Logs table
  • Charts

Week 4: Payments and polish

15h
  • Stripe integration
  • Landing page
Total Timeline: 4 weeks • 80 hours

Pricing Tiers

Free

$0/mo

Basic search only

  • 100 API calls/day
  • 1 MLS connection

Pro

$35/mo

Standard support

  • 10k calls/month
  • Unlimited connections
  • Webhooks

Enterprise

$99/mo

N/A

  • Unlimited calls
  • Custom mappings
  • Priority support

Revenue Projections

MonthUsersConversionMRRARR
Month 12010%$70$840
Month 615015%$788$9,456

Unit Economics

$40
CAC
$420
LTV
5%
Churn
92%
Margin
LTV:CAC Ratio: 10.5xExcellent!

Landing Page Copy

Unlock MLS Data Without the Hassle

Proxy your way to RESO-standard real estate data in minutes – perfect for proptech bootstrappers.

Feature Highlights

No IDX approval delays
Normalized JSON APIs
Usage dashboard included
99.9% uptime
SOC2 compliant proxy

Social Proof (Placeholders)

"'Saved us 3 months of integration hell' – Proptech Founder"
"'Finally, reliable MLS access' – Indie Dev"

First Three Customers

Post in Indie Hackers proptech thread offering free beta access; DM 10 small proptech founders from Product Hunt real estate tools; share MVP on r/proptech with demo video.

Launch Channels

Product HuntIndie Hackersr/proptechTwitter #proptech

SEO Keywords

MLS API proxyRESO MLS integrationproptech MLS accessno IDX MLS datalegacy MLS connector

Competitive Analysis

IDX Broker

idxbroker.com
$50+/mo
Strength

Full IDX websites

Weakness

Requires broker approval, no API focus

Our Advantage

API-only, instant setup for devs

🏰 Moat Strategy

Data normalization IP and cached MLS endpoints for speed.

⏰ Why Now?

Rising proptech indie devs need fast MLS access amid housing market digitization.

Risks & Mitigation

legalmedium severity

MLS ToS violations via proxy

Mitigation

User owns credentials; add ToS indemnity

technicalhigh severity

MLS auth changes breaking proxy

Mitigation

Weekly credential tests + alerts

Validation Roadmap

pre-build7 days

Interview 5 proptech founders

Success: 3 express interest

mvp14 days

Beta with 10 users

Success: 50% retention

launch3 days

PH launch

Success: 100 signups

Pivot Options

  • Expand to Zillow/Trulia proxy
  • White-label for agencies
  • MLS compliance checker

Quick Stats

Build Time
80h
Target MRR (6 mo)
$1,000
Market Size
$50.0M
Features
8
Database Tables
3
API Endpoints
4