RETS integration services. Legacy MLS feeds done right
RETS integration for brokerages and real estate platforms with MLSs still on the legacy standard. Properly normalized, photo-optimised, schema-rich. And modernization paths to RESO Web API when your MLS migrates.
Trusted by 50+ operators, PropTech companies & digital-first brands
Harrington Housing
Hive Coliv
Edge Living
CDA Coliving
Fllat
Volley
TheVibes
CasaPay
JumboTiger
Everything Coliving
Bookmycoliving
Bhutani
Gulshan- Harrington Housing
- Hive Coliv
- Edge Living
- CDA Coliving
- Fllat
- Volley
- TheVibes
- CasaPay
- JumboTiger
- Everything Coliving
- Bookmycoliving
- Bhutani
- Gulshan
CRC
M3M
Godrej
Omaxe
Sikka
Lodha
Mahagun
Prestige
Sawasdee- CRC
- M3M
- Godrej
- Omaxe
- Sikka
- Lodha
- Mahagun
- Prestige
- Sawasdee
Built for these operators
Brokerages on MLSs that haven't migrated
Still on RETS, not RESO Web API.
Real estate platforms
Existing RETS feeds needing modernization.
Migrations from RETS to RESO Web API
Phased dual-write.
Sites with mixed RETS + RESO
Feeds across regions.
Everything you need, in one engagement
RETS feed integration
RETS 1.7.2 / 1.8 / 1.9 standards.
DMQL2 query optimisation
Efficient pull patterns.
Photo download & optimisation
RETS photo objects → CDN-hosted.
Schema normalization
Across MLS-specific RETS fields.
Listing-page server rendering
Schema-marked, indexable.
Search & filter
Fast index across normalized data.
MLS rule compliance
Display, attribution, ToS.
Modernization path
Phased migration to RESO Web API when MLS supports.
A predictable, weekly cadence
- Step 01
Discovery (Week 1)
RETS feed details, query volume, photo strategy.
- Step 02
Feed access (Weeks 1–3)
Vendor / MLS coordination.
- Step 03
Build (Weeks 3–7)
RETS sync, photo handling, listing pages.
- Step 04
Compliance review (Week 8)
Display + attribution audit.
- Step 05
Launch & monitor (Week 9)
Go live + monitoring.
- Step 06
Operate (ongoing)
Feed quality, MLS migrations, schema changes.
Opinionated for real estate
Stack
- RETS standards
- DMQL2
- Node.js / Python (rets-client / pyRETS)
- Postgres
- S3 / Cloudinary
- Schema.org
Real engagements, real outcomes
Brokerage RETS migration to RESO
Dual-write during 6-month MLS migration window.
Regional MLS RETS feed
1.4K listings normalized to modern schema.
Multi-RETS aggregation
4 RETS feeds combined with unified schema.
What clients walk away with
1.7.2 / 1.8 / 1.9
RETS standards all supported
Optimized
DMQL2 query. Efficient incremental sync
Path
modernization to RESO Web API included when MLS supports
99%+
feed uptime across managed RETS integrations
Pick the tier that fits
Single RETS Feed
4–6 weeks
- One RETS feed
- Schema normalization
- Compliance review
- Most popular
Multi-RETS + Modernization
8–12 weeks
- Multiple RETS feeds
- Modernization path
- Phased migration plan
RETS → RESO Migration
8–10 weeks
- Phased dual-write
- Both feeds running
- Cutover with monitoring
Side-by-side, with the alternatives
| Capability | Noseberry | Generic dev shop | RETS-only vendor | DIY |
|---|---|---|---|---|
| RETS standards (1.7.2 / 1.8 / 1.9) | All | Varies | Varies | |
| RESO migration path | Native | Rare | Limited | |
| Photo optimisation | Varies | Varies | ||
| Schema normalization | Varies | Varies | ||
| Code ownership | Varies | Varies |
RETS standards (1.7.2 / 1.8 / 1.9)
- Noseberry
- All
- Generic dev shop
- Varies
- RETS-only vendor
- DIY
- Varies
RESO migration path
- Noseberry
- Native
- Generic dev shop
- Rare
- RETS-only vendor
- Limited
- DIY
Photo optimisation
- Noseberry
- Generic dev shop
- Varies
- RETS-only vendor
- Varies
- DIY
Schema normalization
- Noseberry
- Generic dev shop
- Varies
- RETS-only vendor
- Varies
- DIY
Code ownership
- Noseberry
- Generic dev shop
- Varies
- RETS-only vendor
- Varies
- DIY
Frequently asked questions
Is RETS deprecated?
Not yet. But RESO Web API is the standard going forward. Most MLSs are migrating; some haven't yet. We support both.
Why not just use a RETS vendor?
Vendors are fine if your needs match theirs. Custom RETS when you need control over data model, page structure, or modernization timing.
DMQL2 query limits?
Yes. Most RETS feeds throttle queries. We optimise for incremental sync (modified-since queries) to avoid hitting limits.
Photo handling?
Download via RETS GetObject, optimise, CDN-host. Caches respect MLS update timestamps.
RETS → RESO migration?
Phased dual-write. Both feeds running, dual-update, then cutover. 8–10 week typical timeline.
RETS authentication?
Basic, Digest, or User-Agent. Varies by MLS; we configure per feed.
Related reading
RETS + RESO native modernization-ready?
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