Five subreddits posted the same build the same week: a B2B real estate AI search agent built in 2 days with Claude Code. The data layer is the bottleneck on every variation. Five APIs ranked for real estate prospecting agents.
Top Pick
Scavio covers 80% of the prospecting signal (brokerage discovery via SERP, sentiment via Reddit, market news via Google News) at a fraction of MLS-licensed costs. Reserve direct MLS for transaction-grade workflows.
Full Ranking
#1Our Pick
Scavio (SERP + Reddit + extract)
B2B real estate prospecting agent
Pros
- 80% MLS signal at no licensing cost
- Reddit sentiment
Cons
- No active-listing data
#2
Direct MLS access (RESO Web API)
Transaction-grade workflows
Pros
- Authoritative listings
Cons
- Sponsorship + per-market cost
#3
Realtor.com API (RapidAPI)
Listings without MLS sponsorship
Pros
- No sponsorship needed
Cons
- Less complete than MLS
#4
Zillow GetSearchResults (deprecated 2026)
(retired)
Pros
Cons
- Retired
#5
ATTOM Data Solutions
Property + ownership data
Pros
- Deep ownership data
Cons
- Enterprise
Side-by-Side Comparison
| Criteria | Scavio | Runner-up | 3rd Place |
|---|---|---|---|
| Brokerage discovery | Yes (SERP) | Yes | Limited |
| Reddit sentiment / market threads | Yes | No | No |
| Active listings | No | Yes | Limited |
| Cost barrier | $30/mo | $300+/mo | $30/mo |
| Best for | B2B prospecting | Transactions | Listings without MLS |
Why Scavio Wins
- B2B real estate sales (CRMs, photography, virtual staging, signage, recruiting) does not need active listings. It needs broker contact info, brokerage size, hiring signals, and market sentiment. SERP + Reddit covers all four.
- MLS access at $300-1,000/mo per market plus sponsorship is the wrong investment for B2B sellers. Spend that budget on a Scavio + Claude Code build instead and ship the agent in 2 days.
- Reddit endpoint surfaces unique signals: r/realtors, r/RealEstate, r/RealEstateAgents threads about brokerage transitions, complaints, and software feedback. Pure listing APIs miss this layer entirely.
- Honest tradeoff: agents that need to show active inventory to consumers (consumer search portals, comparable-sale tools) need direct MLS or Realtor.com. Scavio is for the surrounding business intelligence layer.
- Cost math for a daily prospecting agent: 100 brokerage searches + 100 Reddit queries + 50 extract calls = ~250 credits/day = 7,500/mo, just over the Project tier. The Bootstrap tier ($100/mo for 28K credits) handles 4× that volume.