SimplyRETS vs Datafiniti Property Data for AI agents
SimplyRETS is a developer API and WordPress plugin that turns your own MLS's RETS or RESO Web API feed into a simple REST listings API. Datafiniti Property Data is a searchable US property database (API, portal and bulk download) that merges listing activity, tax/assessment and transaction data per property.
The short answer
- SimplyRETS: An affordable, simple REST layer for an agent or brokerage that already has its own MLS data feed.
- Datafiniti Property Data: Bulk property and listing-history records for analysis and modelling, billed per record returned.
Side by side
| SimplyRETS | Datafiniti Property Data | |
|---|---|---|
| Searches | Listings from the MLS feeds you connect: active, under contract, pending and closed; residential, condo, rental, multifamily, commercial and land, plus open houses. | Residential, commercial, multi-family and land properties: active listings, historical records, off-market properties, and rental status. |
| Returns | Listing records with property details, photos, and listing agent and office information when the MLS feed supplies it. | Property records with location, characteristics, tax/assessment data, transaction history, prices, rental status, brokers (agent, phones, emails) and source URLs. |
| Before the first call | RETS or RESO Web API credentials from your MLS; whether you must be an agent or broker depends on the MLS. | A Datafiniti account (trial or paid plan) and its API token. |
| Free | Free demo API keys with sample data; no free trial with live data. | Trial: 1,000 property records free for 2 weeks. |
| Paid | Basic plan $49 a month, plus a one-time $99 fee per MLS connection. | $119 a month for 1,000 property records a month. |
| Acting on a result | Listing agent and office contact details come with each listing when the MLS feed has them, and some MLSs require showing them. | Records can include broker and agent names with phone numbers and emails, plus source URLs of the listing pages. |
| Limits on keeping or showing results | Only listings flagged for IDX display are served, and you must follow the display rules (e.g. last-updated disclaimers) set by your MLS. | No reselling or redistributing the data without significant modification, no public display of image URLs, and delete all data when the agreement ends. |
| Coverage | Whatever MLS you connect (US); no fixed national coverage. | US |
| MCP server | No official server listed | No official server listed |
Where AgentBeacon fits
AgentBeacon has no home beacons yet. Anyone can create one, and agents will find them through the same search as jobs and businesses.
Questions people ask
What do I need before I can use SimplyRETS?
RETS or RESO Web API credentials from your MLS; whether you must be an agent or broker depends on the MLS.
Is SimplyRETS free?
Free demo API keys with sample data; no free trial with live data.
What do I need before I can use Datafiniti Property Data?
A Datafiniti account (trial or paid plan) and its API token.
Is Datafiniti Property Data free?
Trial: 1,000 property records free for 2 weeks.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
SimplyRETS, read on October 15, 2026:
- simplyrets.com: “These are our demo API keys, you can use them!”
- simplyrets.com: “Each RETS or RESO Web API connection requires one time $99 connection fee.”
- simplyrets.com: “Get RETS or RESO Web API credentials from your MLS”
- simplyrets.com/faq: “This is dependent on the MLS area you want to connect to.”
- docs.simplyrets.com/topics/fields-and-features-for-idx-compliance: “In some cases it may be required that you show the contact information for the listing agent and/or listing office.”
- docs.simplyrets.com/topics/fields-and-features-for-idx-compliance: “in many areas it’s required to show the timestamp of when the data was last updated in a disclaimer.”
- simplyrets.com: “Basic $ 49 /mo”
- simplyrets.com/faq: “We don't currently offer a free trial period with live data”
Datafiniti Property Data, read on October 15, 2026:
- datafiniti.co/data/property-data: “1K free property records ... for 2 weeks”
- datafiniti.co/data/property-data: “1K property records per month ... $119 per month”
- datafiniti.co/data/property-data: “Datafiniti covers residential, commercial, multi-family, land, and specialty property types throughout the U.S.”
- datafiniti.co/data/property-data: “Explore active listings, historical records, off-market properties, and inventory with no current listing activity.”
- docs.datafiniti.co/docs/property-data-schema: “A list of email addresses associated with the broker.”
- docs.datafiniti.co/docs/property-data-schema: “A list of source URLs associated with this property record.”
- datafiniti.co/terms: “Resell, redistribute or sublicensing Datafiniti Data without any significant modifications”
- datafiniti.co/terms: “you shall immediately delete all Datafiniti Data from your systems”