Claude CodeCLI

Why use USPS Developer Portal MCP Server with Claude Code?

Bring Address Verification
to Claude Code

Name: USPS Developer Portal MCP Server
Availability: InStock
Rating: 4.9 (1 reviews)
Author: Vinkius

Create your Vinkius account to connect USPS Developer Portal to Claude Code and start using all 8 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.

GDPR Free for Subscribers

Calculate Domestic RateCalculate International RateGet Delivery CommitmentsLookup Usps City StateLookup Usps Zip CodeTrack Usps PackageTrack Usps Package AdvancedVerify Usps Address

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What is the USPS Developer Portal MCP Server?

Empower your AI agent to orchestrate your entire postal logistics and address auditing workflow with the USPS Developer Portal, the official source for United States Postal Service data. By connecting USPS Web Tools to your agent, you transform complex shipping tasks into a natural conversation. Your agent can instantly verify addresses, audit package tracking statuses, and retrieve ZIP code metadata without you ever touching a shipping portal. Whether you are managing e-commerce deliveries or conducting regional address audits, your agent acts as a real-time logistics consultant, ensuring your data is always verified and precise.

What you can do

Address Auditing — Standardize and verify United States addresses to ensure your shipping metadata is always grounded in official USPS records.
Advanced Tracking Control — Track real-time package statuses and access granular facility-level tracking events instantly.
ZIP Code & Routing Discovery — Cross-reference ZIP codes with city/state pairs to understand the geographic reach of your logistics.
Domestic & International Rates — Accurately calculate the real-time cost of shipping across various mail classes, weights, and global destinations.
Service Delays & Commitments — Query live delivery commitments by mail class to accurately orchestrate e-commerce fulfillment.

How it works

Subscribe to this server
Enter your USPS Web Tools User ID
Start managing your postal intelligence through Claude, Cursor, or any MCP-compatible client

Who is this for?

Logistics Managers — monitor package timelines and retrieve official metadata straight from your workflow.
E-commerce Leads — verify customer addresses and audit delivery patterns without manual searching.
Address Researchers — perform rapid audits of US locations and identify relevant ZIP markers through natural language.
Operations Leads — automate postal data querying to orchestrate cross-functional shipping teams smoothly.

Built-in capabilities (8)

calculate_domestic_rate

Calculate USPS domestic shipping rates

calculate_international_rate

Calculate USPS international shipping rates

get_delivery_commitments

Get USPS service delivery commitments and estimates

lookup_usps_city_state

Look up the city and state for a ZIP code

lookup_usps_zip_code

Look up the exact ZIP code for a specific US address

track_usps_package

Track a USPS package using a tracking number

track_usps_package_advanced

Get advanced tracking information for a USPS package

verify_usps_address

Verify and standardize a US address using USPS Web Tools

See what your AI agent can do with USPS Developer Portal

Why Claude Code?

Claude Code registers USPS Developer Portal as an MCP server in a single terminal command. Once connected, Claude Code discovers all 8 tools at runtime and can call them headlessly. ideal for CI/CD pipelines, cron jobs, and automated workflows where USPS Developer Portal data drives decisions without human intervention.

—
Single-command setup: claude mcp add registers the server instantly. no config files to edit or applications to restart
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Terminal-native workflow means MCP tools integrate seamlessly into shell scripts, CI/CD pipelines, and automated DevOps tasks
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Claude Code runs headlessly, enabling unattended batch processing using USPS Developer Portal tools in cron jobs or deployment scripts
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Built by the same team that created the MCP protocol, ensuring first-class compatibility and the fastest adoption of new protocol features

See it in action

USPS Developer Portal in Claude Code

AI Agent→Vinkius

High Security·Kill Switch·Plug and Play

Enterprise Security

Why run USPS Developer Portal with Vinkius?

The USPS Developer Portal connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 8 tools are ready to work instantly without any complex setup.

You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

View full USPS Developer Portal details →

Fully ManagedNo server setup

Plug & PlayNo coding needed

SecurePrivacy protected

PrivateYour data is safe

Cost ControlBudget limits

Control1-click disconnect

Auto-UpdatesMaintenance free

High SpeedOptimized for AI

Reliable99.9% uptime

Your credentials and connection tokens are fully encrypted

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure

01 / Catalog

Over 4,000 integrations ready for AI agents

Explore a vast library of pre-built integrations, optimized and ready to deploy.

02 / Credentials

Connect securely in under 30 seconds

Generate tokens to authenticate and link external services in a single step.

03 / Guardian

Complete visibility into every agent action

Audit live requests, latency, success rates, and active security compliance policies.

04 / FinOps

Optimize spending and track token ROI

Analyze real-time token consumption and cost metrics detailed by connection.

Over 4,000 integrations ready for AI agents

Complete visibility into every agent action

Explore our live AI Agents Analytics dashboard to see it all working

This dashboard is included when you connect USPS Developer Portal using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.

Explore Analytics

Why Vinkius

USPS Developer Portal and 4,000+ other AI tools. No hosting, no code, ready to use.

Professionals who connect USPS Developer Portal to Claude Code through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.

4,000+MCP Integrations

<40msResponse time

100%Fully managed

	Raw MCP	Vinkius
Ready-to-use MCPs	Find and configure each manually	4,000+ MCPs ready to use
Connection Setup	Manual coding & server setup	1-click instant connection
Server Hosting	You host it yourself (needs 24/7 uptime)	100% hosted & managed by Vinkius
Security & Privacy	Stored in plaintext config files	Bank-grade encrypted vault
Activity Visibility	Blind execution (no logs or tracking)	Live dashboard with real-time logs
Cost Control	Runaway AI token spend risk	Automatic budget limits
Revoking Access	Must delete files or code to stop	1-click disconnect button

View step-by-step setup guide for Claude Code →

The Vinkius Advantage

How Vinkius secures
USPS Developer Portal for Claude Code

Every request between Claude Code and USPS Developer Portal is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.

< 40msCold start

Ed25519Signed audit chain

60%Token savings

FAQ

Frequently asked questions

How do I find my USPS User ID?

Register for an account at the USPS Web Tools registration page. You will receive your User ID via email. Copy and paste it below.

Does it support international tracking?

Yes. The track_usps_package tool supports tracking for any valid USPS tracking number, including international shipments originating from or delivered by USPS.

What is the format for address verification?

The API requires an object with line1, city, and state metadata. Standardizing these inputs ensures the most accurate verification from the USPS database.

How do I add an MCP server to Claude Code?

Run claude mcp add <name> --transport http "<url>" in your terminal. Claude Code registers the server and discovers all tools immediately.

Can Claude Code run MCP tools in headless mode?

Yes. Claude Code supports non-interactive execution, making it ideal for scripts, cron jobs, and CI/CD pipelines that need MCP tool access.

How do I list all connected MCP servers?

Run claude mcp in your terminal to see all registered servers and their status, or type /mcp inside an active Claude Code session.

Command not found: claude

Ensure Claude Code is installed globally: npm install -g @anthropic-ai/claude-code

Connection timeout

Check your internet connection and verify the Edge URL is reachable

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