Quick Answer
Add Realie as a custom Streamable HTTP MCP server in Cursor with the product URL https://app.realie.ai/api/mcp. Do not put an API key in mcp.json. When you first call a property tool, Cursor opens Clerk OAuth; complete sign-in and billing setup on new accounts, then retry the lookup.
Summary
Cursor agents reach Realie’s live property tools through the same OAuth-protected MCP endpoint used by Claude and other hosts. Cursor’s MCP settings accept a server entry with the Realie URL only; authentication happens through the host’s OAuth flow when tools/call runs.
Step by step
- 1
Open Cursor MCP settings
Use Command + Shift + P (Ctrl + Shift + P on Windows), search for Open MCP settings, and choose Add custom MCP.
- 2
Add the Realie server URL
Add a server named realie with url set to https://app.realie.ai/api/mcp. Example mcp.json fragment: "realie": { "url": "https://app.realie.ai/api/mcp" }. Do not add Authorization headers or API keys to the file.
- 3
Save and enable the server
Reload MCP if Cursor prompts you, then confirm Realie appears in the enabled MCP server list.
- 4
Sign in through OAuth
In Agent or Chat, ask Cursor to call address_lookup or property_search for a U.S. address. Complete Clerk sign-up or sign-in when the browser window opens, then approve Cursor’s access.
- 5
Complete billing for new accounts
If tool calls return billing or access errors, add a payment method at https://app.realie.ai/developer and retry.
- 6
Optional universal installer
From a terminal you can also run: npx add-mcp https://app.realie.ai/api/mcp (follow the host-specific prompts).
Example prompts (address-based lookups)
“Call Realie address_lookup for 415 Mission St, San Francisco, CA and show assessed value and building area.”
“Use property_search to find parcels on Ocean Drive in Miami Beach, FL with city set to Miami Beach.”
“Look up 1600 Pennsylvania Ave NW, Washington, DC and summarize the parcel ID and last recorded transfer from the Realie record.”
What it does not return
Realie returns county-sourced property records, not MLS listing feeds, listing photos, or active for-sale inventory from broker systems.
Field availability varies by county and source office. An empty or partial record means the jurisdiction did not publish that attribute for the parcel, not that the connection failed.
The documentation MCP at https://docs.realie.ai/mcp searches Mintlify help pages only. It cannot return live property records.
Sources
Frequently asked questions
- Can I use a Realie API key in Cursor mcp.json?
- The documented Cursor path uses OAuth only—no API key in mcp.json. Some server-side integrations pass Bearer YOUR_REALIE_API_KEY when the host supports it; see the Realie MCP docs for that pattern.
- Which Realie tools should I test first?
- Start with address_lookup for a full record by street address, then property_search for filtered lists. Other documented tools include parcel_lookup, location_search, comparables, and owner_search.
- Why does tools/list work before I sign in?
- Tool discovery is public. Successful property calls bill against your Realie token allowance only after OAuth and account access are in place.