• CLEAN
  • FIXED
  • INVALID
  • HUMAN

How to validate shipping addresses with your AI

Connect your AI to the USPS Developer Portal once. After that, your agent handles the address checking and formatting for you.

Ask AI about this page

Short answer

How can I use AI to verify shipping addresses?

Your AI uses the USPS Developer Portal to compare raw input against official postal records. It identifies correct formats and flags invalid locations so you can fix them before shipping. You'll see exactly how the data is handled below.

The results of your check.

Where your data lands.

The AI processes your input and sorts the output into these four categories.

CLEAN

Standardized addresses

The AI reformats the input to match USPS standards. You get a clean string ready for your shipping label.

FIXED

Corrected typos

The AI spots small errors in street names or zip codes. It provides the official version of that location.

INVALID

Unrecognized locations

The AI flags addresses that don't exist in the postal database. These entries need your manual review.

HUMAN

Manual review needed

If the AI can't find a match, it stops and asks you for help. You decide if the address is close enough to use.

The workflow

What your AI does when an address arrives.

Your agent acts as the bridge between your raw text and the official USPS database.

  1. Parse input

    Your agent reads the raw address from your sheet or chat and breaks it into parts like street, city, and zip.

    verify_usps_address

  2. Check USPS records

    The AI sends that data to the official postal service to see if the location is real.

    verify_usps_address

  3. Standardize format

    The AI rewrites the address into the exact format USPS requires for mail processing.

    verify_usps_address

  4. Report results

    The AI tells you if the address is valid, corrected, or completely unidentifiable.

    verify_usps_address

Try it

Copy these to start.

Use these prompts to trigger the address verification process.

Starting points

Replace the bracketed text with your specific file names or customer lists.

USPS Web Tools Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_R7DQnUcS3k7mzjKxMrsMbzxWu6CJTEhHjGrbKAVt/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — USPS Web Tools capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "usps-developer-portal-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_R7DQnUcS3k7mzjKxMrsMbzxWu6CJTEhHjGrbKAVt/mcp"
    }
  }
}
Copy into chat04

  • Verify these addresses from my customer_list.csv using the USPS tool.

  • Check the shipping address in this email and tell me if it's valid.

  • Standardize the addresses in this Google Sheet to USPS format.

  • Look at this list of orders and flag any addresses that the USPS tool can't find.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect USPS Developer Portal once, then ask.

One connection gives your AI access to the postal database. Your credentials stay encrypted on our side, and you can find the full walkthrough on the Connector page.

Connect USPS Developer Portal to your AI

FAQ

How this task behaves.

  • 01

    Can the AI automatically update my shipping software?

    No. The AI provides the corrected address, but you must manually update your software or use a different tool to push those changes.

  • 02

    Will the AI change the customer's name?

    No. The tool only validates and standardizes the address components like street, city, state, and zip.

  • 03

    What happens if an address is fake?

    The AI will flag it as invalid. It won't guess or invent a real address if the input doesn't match USPS records.

  • 04

    Does this work for international addresses?

    No. This tool is built for USPS records and only validates addresses within the United States.

  • 05

    Can the AI fix misspelled street names?

    Yes. If the typo is close enough to a real street name in the USPS database, the AI will correct it.

  • More questions about USPS Developer Portal? See everything the USPS Developer Portal Connector can do

Connect USPS Web Tools to Claude, Cursor, ChatGPT & more