# USPS Address Validation and Standardization MCP Server

> Use this tool when you need to validate and standardize US addresses, solving problems such as incorrect or incomplete address entries, and ensuring accurate mail delivery. It takes in unformatted addresses as input and returns standardized, validated addresses as output, utilizing the official USPS Address Validation API with secure OAuth2 authentication. Ideal for use cases requiring accurate address verification, such as shipping, logistics, and customer data management.

Canonical page: https://skillsregistry.net/skills/bailur-usps-mcp-server  
JSON: https://api.skillsregistry.net/v1/skills/bailur-usps-mcp-server

## Description

Enables AI assistants to validate and standardize US addresses using the official USPS Address Validation API with secure OAuth2 authentication.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** security
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/h1liaw2yi4)
- **Repository:** <https://github.com/bailur/usps-mcp-server>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "bailur-usps-mcp-server"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/bailur-usps-mcp-server` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/bailur-usps-mcp-server/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt