Connect Propalt AI to Claude and ChatGPT

Propalt AI lets your AI assistant pull live UK property data straight into the conversation. Here’s how to connect Propalt AI to ChatGPT, Claude.

PT
Propalt team
Guides6 min read
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Ask your AI assistant about any UK property and get a real answer, pulled from live data, right there in the conversation.

That's Propalt AI. Connect it once and your assistant can answer for any address in the UK, straight from the UK public registers behind the API.

Connecting takes minutes. There are three routes, depending on your setup, and we'll walk through each: the no-code Apps route in ChatGPT, a custom connector in Claude, and a config-based setup for developer clients like Claude Code and Cursor.

What you'll need

  • A Propalt account. The ChatGPT Apps route only needs your Propalt sign-in. The Claude custom connector and the developer-client route need an active Propalt API key.
  • An MCP-compatible client: ChatGPT, Claude, Claude Code, or Cursor.

Connect in ChatGPT

In ChatGPT, Propalt AI is an official app, so there's nothing to install and no keys to paste. Signing in is all it takes.

Step 1: Open Apps and search for Propalt

In ChatGPT, click Apps in the left sidebar, type "Propalt" in the search box, and select Propalt – Property Data & Insights - UK from the results.

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Step 2: Open the Propalt app page and click Connect

On the Propalt app page you'll see a short description and a usage example. Click Connect in the top-right corner.

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Step 3: Sign in to your Propalt account

Sign in with your email and password, then click Continue. This securely links your Propalt account to ChatGPT. Your credentials are never shared with or stored by ChatGPT.

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Step 4: Start asking property questions

You're connected, and Propalt AI now appears in the message box. Ask a UK property question naturally and Propalt AI pulls live data for ChatGPT to turn into a clear answer. For example:

  • "Give me 3 key market points an estate agent can tell a vendor in SA1"
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Connect in Claude

Claude connects to Propalt through a custom connector. You add the Propalt MCP server once, then authorise it with your Propalt account.

Step 1: Open the Connectors settings

In Claude, go to Customize → Connectors, click + Add, then choose Add custom connector. (In older versions of Claude this sits under Settings → Connectors.) On Team and Enterprise plans, an Owner adds the connector in organisation settings and members then click Connect.

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Step 2: Enter the Propalt MCP details

Give the connector a name (for example, Propalt) and paste the Remote MCP Server URL below. If Claude asks for an OAuth Client ID (under Advanced settings), paste the one below too. Then click Add.

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Remote MCP Server URL

https://api.propalt.io/mcp/oauth

OAuth Client ID

hz3TYxtcldnIsk8DpCt9AdLJILWH6kOu

Step 3: Authorise and start asking

Sign in to your Propalt account when prompted to authorise the connection. Once authorised, Propalt AI's tools are live in Claude. Ask about any UK property to confirm it's working.

Connect in a developer client

Developer clients like Claude Code and Cursor connect to Propalt AI over HTTP using your API key.

Step 1: Get your API key

If you don't have one yet, generate an API key in your Propalt account.

Step 2: Add Propalt to your client

Add Propalt AI to your AI client's MCP configuration. Here are examples for popular clients:

CLAUDE CODE CLI
claude mcp add --transport http propalt-mcp https://api.propalt.io/mcp --header "Authorization: Bearer YOUR_API_KEY_HERE"
CURSOR IDE
{
  "mcp": {
    "servers": {
      "propalt-mcp": {
        "url": "https://api.propalt.io/mcp",
        "headers": { "Authorization": "Bearer YOUR_API_KEY_HERE" }
      }
    }
  }
}

Step 3: Start asking questions

Restart your client, then ask about UK property data. For example:

  • "What are property prices in Manchester?"
  • "Get rental data for SW1A 1AA"
  • "Show me planning history for 123 Baker Street"
  • "Analyse the local market yields in Liverpool L1"

How credits work

Step 1: Know what each call costs

Every tool call in ChatGPT, Claude or a developer client uses the same credits as the matching REST API call. For example, a property lookup costs 6 credits, a valuation 15 and an address lookup 1.

Step 2: Repeat questions cost nothing extra

If you ask for the same data with the same details within 15 minutes, Propalt AI reuses the last result and does not charge again.

Step 3: Choose a plan

Plans are credit-based. See the pricing page for every plan and its monthly credits.

Tips for better answers

  • Name the property or area precisely: a full postcode, an outward code such as SA1, or a UPRN.
  • Keep personal data about clients out of your prompts.
  • Check any figure against its source before it goes to a client.
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