How do I get a HUD User Access Token?

Register for an account at the HUD User API page (https://www.huduser.gov/portal/dataset/uspszip-api.html), confirm your email, and generate a token in your user dashboard.

Which year of data is used?

By default, the API returns the most recent available data. You can optionally specify a year and quarter in each tool.

Does it support mapping Tracts back to ZIP codes?

Yes, tools like tract_to_zip and county_to_zip allow bidirectional crosswalking between geography IDs and ZIP codes.

HUD User (USPS Crosswalk) MCP Server for Cursor 10 tools — connect in under 2 minutes

Name: HUD User (USPS Crosswalk)
Availability: InStock
Author: Vinkius

docs.cursor.com/context/model-context-protocol

Built by Vinkius GDPR 10 Tools IDE

Cursor is an AI-first code editor built on VS Code that integrates LLM-powered coding assistance directly into the development workflow. Its Agent mode enables autonomous multi-step coding tasks, and MCP support lets agents access external data sources and APIs during code generation.

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Classic Setup·json

{
  "mcpServers": {
    "hud-user-usps-crosswalk": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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About HUD User (USPS Crosswalk) MCP Server

Empower your AI agents to navigate US geography with precision. This MCP server connects to the HUD User Data API to provide crosswalks between USPS ZIP codes and Census Bureau geographies including Tracts, Counties, CBSAs, and Congressional Districts. Essential for urban planning, demographics analysis, and real estate data processing.

Cursor's Agent mode turns HUD User (USPS Crosswalk) into an in-editor superpower. Ask Cursor to generate code using live data from HUD User (USPS Crosswalk) and it fetches, processes, and writes — all in a single agentic loop. 10 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.

The HUD User (USPS Crosswalk) MCP Server exposes 10 tools through the Vinkius. Connect it to Cursor in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect HUD User (USPS Crosswalk) to Cursor via MCP

Follow these steps to integrate the HUD User (USPS Crosswalk) MCP Server with Cursor.

Open MCP Settings

Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"

Add the server config

Paste the JSON configuration above into the mcp.json file that opens

Save the file

Cursor will automatically detect the new MCP server

Start using HUD User (USPS Crosswalk)

Open Agent mode in chat and ask: "Using HUD User (USPS Crosswalk), help me..." — 10 tools available

Why Use Cursor with the HUD User (USPS Crosswalk) MCP Server

Cursor AI Code Editor provides unique advantages when paired with HUD User (USPS Crosswalk) through the Model Context Protocol.

Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context

Cursor's Composer feature can generate entire files using real-time data fetched through MCP — no copy-pasting from external dashboards

MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment

VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools

HUD User (USPS Crosswalk) + Cursor Use Cases

Practical scenarios where Cursor combined with the HUD User (USPS Crosswalk) MCP Server delivers measurable value.

Code generation with live data: ask Cursor to generate a security report module using live DNS and subdomain data fetched through MCP

Automated documentation: have Cursor query your API's tool schemas and generate TypeScript interfaces or OpenAPI specs automatically

Infrastructure-as-code: Cursor can fetch domain configurations and generate corresponding Terraform or CloudFormation templates

Test scaffolding: ask Cursor to pull real API responses via MCP and generate unit test fixtures from actual data

HUD User (USPS Crosswalk) MCP Tools for Cursor (10)

These 10 tools become available when you connect HUD User (USPS Crosswalk) to Cursor via MCP:

cbsa_to_zip

Maps CBSAs to ZIP codes

cbsadiv_to_zip

Maps CBSA Divisions to ZIP codes

cd_to_zip

Maps Congressional Districts to ZIP codes

county_to_zip

Maps Counties to ZIP codes

tract_to_zip

Maps Census Tracts to ZIP codes

zip_to_cbsa

Maps ZIP codes to Core Based Statistical Areas (CBSA)

zip_to_cbsadiv

Maps ZIP codes to CBSA Divisions

zip_to_cd

Maps ZIP codes to Congressional Districts

zip_to_county

Maps ZIP codes to Counties

zip_to_tract

Maps ZIP codes to Census Tracts

Example Prompts for HUD User (USPS Crosswalk) in Cursor

Ready-to-use prompts you can give your Cursor agent to start working with HUD User (USPS Crosswalk) immediately.

"Find the census tracts associated with ZIP code 90210."

"Which ZIP codes are in county FIPS 06037?"

"Get the congressional districts for ZIP code 10001."

Troubleshooting HUD User (USPS Crosswalk) MCP Server with Cursor

Common issues when connecting HUD User (USPS Crosswalk) to Cursor through the Vinkius, and how to resolve them.

Tools not appearing in Cursor

Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.

Server shows as disconnected

Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.

HUD User (USPS Crosswalk) + Cursor FAQ

Common questions about integrating HUD User (USPS Crosswalk) MCP Server with Cursor.

What is Agent mode and why does it matter for MCP?

Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.

Where does Cursor store MCP configuration?

Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.

Can Cursor use MCP tools in inline edits?

No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design — tool calls require user visibility and approval.

How do I verify MCP tools are loaded?

Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.