# Postal Data API MCP

Vendor: Postal Data API  
Category: developer-tools  
Auth: API_KEY  
Composio slug: `postal_data_api`

Postal Data API validates and looks up postal codes, locations, coordinates, and regional metadata across more than 240 countries and territories.

## Tools

- **Get API Information** — Return Postal Data API version, coverage, usage guidance, current balance, and configured rate-limit status when returned, for connectivity or service discovery. The provider does not document this endpoint as unbilled, so assume it may con
- **Get Postal Code Metadata** — Return all available country-specific metadata for a postal code, such as coordinates, timezone, county, elevation, and administrative levels. The metadata fields vary by country and availability. Each successful call consumes one Postal Da
- **Look Up Postal Code** — Look up the city, region, and coordinates for a postal code. Use this for a concise location result; use Get Postal Code Metadata for country-specific administrative details. Each successful call consumes one query.
- **Search Postal Codes by City** — Return all postal codes matching a city and optional region, including fuzzy-match details. For US searches, provide a state name or state code. Each successful call consumes one Postal Data API query.
- **Validate Postal Code** — Check whether one postal code exists without treating a nonexistent code as an execution error. Inspect valid in the response. Each successful call consumes one Postal Data API query.
- **Validate Postal Codes in Bulk** — Validate 1 to 1,000 postal codes synchronously, including mixed-country batches. Results preserve input order and report per-record failures. A batch of N records consumes N queries and is rejected atomically if balance or rate-limit budget

## Setup

1. Create or open a Switchy Project.
2. Open Integrations and connect Postal Data API.
3. Authorise through api_key.
4. Teammates can now @-mention Postal Data API tools in chat.

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Last verified: 2026-09-03T02:00:04.194Z  
Canonical URL: https://switchy.build/directory/mcps/postal-data-api