Proptech AISource: Cotality (vendor announcement)
Cotality's Trestle MCP: free governed MLS listing access for approved AI apps
Original headline: “Cotality launches Trestle MCP, connecting AI to trusted, governed MLS data” — Cotality (vendor announcement), Oct 19, 2026
In an October 19 product announcement, Cotality said it launched Trestle MCP for MLS organizations already on its Trestle data-distribution platform, available at no additional cost to the MLS. Cotality says Trestle already serves more than 100 MLS organizations delivering RESO-standardized feeds to more than 1,200 brokers, portals and tech providers, and that Trestle MCP extends the same permissions, licensing and controls so approved AI applications can connect to authorized real-time listing data instead of static copies. SVP and GM Kevin Greene said the goal is supporting AI innovation on trusted data; Cotality also pairs the launch with Trestle Defender monitoring, forensic attribution and digital fingerprinting to help spot unauthorized redistribution.
Our take (opinion & analysis, not reporting)
For agents on a Trestle-backed MLS: ask your association which AI apps are approved on Trestle MCP before you paste live listings into ChatGPT or Claude, and whether Defender fingerprinting changes how vendor feeds are audited. If your CMA, CRM or website vendor wants MLS data inside an LLM, ask whether that path is licensed through Trestle MCP rather than a scrap or dump. Brokerages shopping AI connectors: another major MLS distributor is productizing governed MCP access — put that on the RFP checklist next to SourceRE-style deals.
Online discussion: no notable public discussion found yet (checked Oct 21, 2026).