Product

Property answers in Claude, with sources attached.

Connect Quoin once, then ask Claude about Washington, DC property records in plain language. Quoin returns sourced facts through 15 read-only tools.

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What this is

Quoin runs a hosted MCP server, the connector standard AI assistants use to call outside data. Connect it once and Claude can retrieve Washington, DC property records with a source attached to each material fact.

Connect in minutes

Start the free trial, copy the Quoin connector endpoint, and complete the browser sign-in when Claude opens it. The Claude connection guide shows the full path.

What you can ask

Ask about ownership and sale context, tax and balance history, assessments by year and stage, permits, licenses, inspections, and building details. Quoin matches the address to the right property account and keeps the evidence visible.

Question: When did 1801 K Street NW last sell?

Answer: January 14, 2015 for $445,000,000.
Source: CAMA record 473583123.

Building an agent?

The documentation describes all 15 read-only tools, property resolution, data freshness, and citation handling. The production endpoint uses OAuth and does not expose raw database queries.

What Quoin will and won't do

  • Washington, DC property-tax accounts only.
  • Read-only lookups; no raw database queries or bulk export.
  • No title, lien-priority, appraisal, zoning, or lending conclusions.
  • Authenticated access at the published MCP endpoint.