Best property data for AI assistants: MCP servers for Claude and ChatGPT
The short answer
An MCP server lets Claude, ChatGPT or Cursor look up property data directly. Listing servers such as Repliers bring MLS listings; commercial research servers such as Green Street bring institutional market data; parcel servers bring nationwide records. Hercules brings NYC owners, pre-foreclosure cases and US records, and lets the assistant buy credits itself.
| Kind of server | Example | Good for |
|---|---|---|
| MLS listings | Repliers | Homes for sale and rent, listing history |
| Commercial research | Green Street | Institutional commercial real estate data |
| Nationwide parcels | Several, by subscription | Parcel lookups by address across the US |
| NYC owners and distress | Hercules | Who owns an NYC building, the person behind the LLC, open foreclosure cases, plus US records |
What to look for
- Sign-in that runs as you, so the assistant sees only what your plan allows.
- Free lookups for the basics, so the assistant does not spend money to find a property.
- Clear prices per call, and a way for the assistant to top up when it runs out.
Questions
- What is an MCP server?
- The Model Context Protocol is a standard way for AI assistants to call outside tools. A property-data MCP server lets the assistant look properties up instead of guessing.
- How do I add Hercules to Claude or ChatGPT?
- Add https://app.hercules.properties/mcp as a connector and sign in with your Hercules account. The setup guide covers Claude, ChatGPT and Cursor.
- Can an AI agent pay for property data by itself?
- With Hercules, yes: the buy_credits tool lets an agent buy a credit pack with a card or stablecoin and keep working.