Does it connect to a web API to verify if the address exists?

No. The Postal Formatter is an algorithmic formatting tool designed for high-speed offline validation. It checks structural integrity (e.g., ensuring a US ZIP has exactly 5 or 9 digits) rather than pinging a geolocation API.

What happens if my agent submits a badly malformed string?

The engine intercepts the failure via deterministic Regex. Instead of crashing, it gracefully returns an object with `isValid: false` and a clear diagnostic so your AI can prompt the user for the correct format.

Why do I need a formatting tool for this?

LLMs constantly hallucinate formatting characters. If you pass 'sw1a1aa' to an LLM to capitalize and space it, it might generate 'SW 1A 1AA' instead of the mathematically correct 'SW1A 1AA'. This MCP guarantees precision.

Deterministic Global Postal Formatter MCP Connector for Claude

A+

Transform your AI into a CRM data powerhouse. Automatically validate, clean, and strictly format international postal codes (BR, US, UK, CA) via regex execution.

1 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

Customer address pipelines are notoriously fragile. AI models frequently struggle with regional idiosyncrasies—like knowing a Brazilian CEP needs a hyphen (01311-000), or that a UK Postcode requires a strategic space (SW1A 1AA). The Postal Formatter MCP eliminates these hallucinations by intercepting and validating routing codes via strict V8 Regex engines.

The Superpowers

Regional Structural Validation: Instantly rejects structurally invalid data (e.g., rejecting a 4-digit ZIP code or a UK postcode missing letters), returning clear diagnostic reports.
Automated Data Cleaning: Receives raw, dirty inputs (like 01311000 or sw1a1aa) and automatically formats them perfectly into standard compliance (01311-000 and SW1A 1AA).
Multi-Country Support: Native rules mapped out for Brazil (CEP), United States (ZIP / ZIP+4), United Kingdom (Postcode), and Canada.
Zero-Dependency Architecture: Pure JS runtime execution guarantees absolute microsecond speed without any massive geolocation NPM dependencies. Perfect for edge-runtime agentic pipelines.

regexdata-validationaddress-formattingcrm-datalocalization

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_EDL9qcvrOz5ZhQ7FZbqaJwHghMiLG1bc5uF1yr9U/mcp

② Claude Code (terminal)

claude mcp add --transport http deterministic-global-postal-formatter https://edge.vinkius.com/vk_preview_EDL9qcvrOz5ZhQ7FZbqaJwHghMiLG1bc5uF1yr9U/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "deterministic-global-postal-formatter": {
      "url": "https://edge.vinkius.com/vk_preview_EDL9qcvrOz5ZhQ7FZbqaJwHghMiLG1bc5uF1yr9U/mcp"
    }
  }
}

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