Which countries are supported?

The server supports postal code data for more than 240 countries and territories, including the United States, United Kingdom, Canada, Germany, France, Japan, Australia, Brazil, and India.

Does the server require an API key?

Yes. Set the POSTALDATAPI_KEY environment variable with an API key from PostalDataPI.

Is there a free allowance?

PostalDataPI provides 1,000 free queries on signup without requiring a credit card.

Postaldatapi MCP

postal-codesgeolocationlocation-dataaddress-data

Look up, validate, and search postal codes across 240+ countries with location, timezone, region, and elevation metadata.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "postaldatapi-postaldatapi-mcp": {
      "command": "uvx",
      "args": [
        "postaldatapi-mcp"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Overview

This MCP server connects AI agents to PostalDataPI for postal code lookups, validation, and city searches. It supports postal codes across 240+ countries and territories and can return coordinates, administrative regions, timezones, elevation, and place names. Use it for address-related queries that require postal code data.

Use cases

Look up a city and region from a postal code

Validate a postal code for a specific country

Find postal codes associated with a city

Retrieve coordinates and timezone metadata for a postal code

Key features

Look up city, region, and abbreviation by postal code

Validate postal codes by country

Search for postal codes by city

Return coordinates, timezone, administrative hierarchy, and elevation

Support 240+ countries and territories

Capabilities & Tool Schemas (4)Self-reported

Inspect callable tools, capabilities, and parameters exposed to AI agents by Postaldatapi MCP.

lookup_postal_code

Get city, state/region, and abbreviation for a postal code (US ZIP, UK postcode, German PLZ, etc.)

validate_postal_code

Check if a postal code exists in a country

search_by_city

Find all postal codes for a city

get_postal_code_metadata

Full metadata: coordinates, admin hierarchy, timezone, elevation, and more

Documentation Overview

PostalDataPI MCP Server

MCP (Model Context Protocol) server for PostalDataPI — lets AI agents look up, validate, and search postal codes across 240+ countries and territories with rich metadata: timezone, administrative regions, elevation, and coordinates.

Tools

Tool	Description
`lookup_postal_code`	Get city, state/region, and abbreviation for a postal code (US ZIP, UK postcode, German PLZ, etc.)
`validate_postal_code`	Check if a postal code exists in a country
`search_by_city`	Find all postal codes for a city
`get_postal_code_metadata`	Full metadata: coordinates, admin hierarchy, timezone, elevation, and more

Setup

1. Get an API Key

2. Install

Terminal

pip install postaldatapi-mcp

3. Configure with Claude Code

Terminal

claude mcp add --transport stdio postaldatapi -- \

  env POSTALDATAPI_KEY=your_api_key_here postaldatapi-mcp

4. Configure with Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

config.json

{

  "mcpServers": {

    "postaldatapi": {

      "command": "postaldatapi-mcp",

      "env": {

        "POSTALDATAPI_KEY": "your_api_key_here"

      }

    }

  }

}

Usage

Once configured, ask Claude naturally:

"What city is ZIP code 90210?"
"Look up UK postcode SW1A"
"Is 10115 a valid German postal code?"
"What are the postal codes for Beverly Hills, CA?"
"Get the coordinates for postal code 100-0001 in Japan"

Claude will automatically use the PostalDataPI tools to answer.

Supported Countries

240+ countries and territories including US, UK, Canada, Germany, France, Japan, Australia, Brazil, India, and many more. See the full list at postaldatapi.com/countries.

Rich Metadata

Beyond basic lookups, the get_postal_code_metadata tool returns up to 18 fields per postal code including:

Coordinates (latitude, longitude)
Timezone (e.g., America/Mexico_City, Europe/Berlin)
Administrative hierarchy (state/province, county, municipality)
Elevation (meters above sea level)
Place name and country information

Example response for Mexico City 06000:

config.json

{

  "postalCode": "06000",

  "country": "MX",

  "placeName": "Centro",

  "latitude": 19.4364,

  "longitude": -99.1553,

  "timezone": "America/Mexico_City",

  "adminLevel1": "Ciudad de México",

  "adminLevel2": "Cuauhtémoc",

  "elevation": 2239

}

Links

Read the full README →View source on GitHub →

Related MCP Servers

View all in Location Services View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars

Stargazers on the source repository.

Last commit

3mo ago

Most recent push to the default branch.

Tools exposed

Callable tools this server registers over MCP.

Directory activity

2 views

Config copies, upvotes, and views on AllMCPs.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Postaldatapi MCP

It can return city, state or region, abbreviations, coordinates, timezone, administrative hierarchy, elevation, place name, and country information.

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Technical Specs & Signals

CategoryLocation Services

PricingFreemium

10/14 checks healthy over the last 32d

52Quality signal: Good · 52/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools28/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 22d ago via OSV.dev · postaldatapi-mcp (PyPI)

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More in 🗺️ Location Services →Best MCP servers for Maps & Location →Alternatives to Postaldatapi MCP →Install in Claude Desktop Install in Cursor Install in VS Code

Postaldatapi MCP

postal-codesgeolocationlocation-dataaddress-data

Look up, validate, and search postal codes across 240+ countries with location, timezone, region, and elevation metadata.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "postaldatapi-postaldatapi-mcp": {
      "command": "uvx",
      "args": [
        "postaldatapi-mcp"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Overview

Use cases

Look up a city and region from a postal code

Validate a postal code for a specific country

Find postal codes associated with a city

Retrieve coordinates and timezone metadata for a postal code

Key features

Look up city, region, and abbreviation by postal code

Validate postal codes by country

Search for postal codes by city

Return coordinates, timezone, administrative hierarchy, and elevation

Support 240+ countries and territories

Capabilities & Tool Schemas (4)Self-reported

Inspect callable tools, capabilities, and parameters exposed to AI agents by Postaldatapi MCP.

lookup_postal_code

Get city, state/region, and abbreviation for a postal code (US ZIP, UK postcode, German PLZ, etc.)

validate_postal_code

Check if a postal code exists in a country

search_by_city

Find all postal codes for a city

get_postal_code_metadata

Full metadata: coordinates, admin hierarchy, timezone, elevation, and more

Documentation Overview

PostalDataPI MCP Server

Tools

Tool	Description
`lookup_postal_code`	Get city, state/region, and abbreviation for a postal code (US ZIP, UK postcode, German PLZ, etc.)
`validate_postal_code`	Check if a postal code exists in a country
`search_by_city`	Find all postal codes for a city
`get_postal_code_metadata`	Full metadata: coordinates, admin hierarchy, timezone, elevation, and more

Setup

1. Get an API Key

2. Install

Terminal

pip install postaldatapi-mcp

3. Configure with Claude Code

Terminal

claude mcp add --transport stdio postaldatapi -- \

  env POSTALDATAPI_KEY=your_api_key_here postaldatapi-mcp

4. Configure with Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

config.json

{

  "mcpServers": {

    "postaldatapi": {

      "command": "postaldatapi-mcp",

      "env": {

        "POSTALDATAPI_KEY": "your_api_key_here"

      }

    }

  }

}

Usage

Once configured, ask Claude naturally:

"What city is ZIP code 90210?"
"Look up UK postcode SW1A"
"Is 10115 a valid German postal code?"
"What are the postal codes for Beverly Hills, CA?"
"Get the coordinates for postal code 100-0001 in Japan"

Claude will automatically use the PostalDataPI tools to answer.

Supported Countries

240+ countries and territories including US, UK, Canada, Germany, France, Japan, Australia, Brazil, India, and many more. See the full list at postaldatapi.com/countries.

Rich Metadata

Beyond basic lookups, the get_postal_code_metadata tool returns up to 18 fields per postal code including:

Coordinates (latitude, longitude)
Timezone (e.g., America/Mexico_City, Europe/Berlin)
Administrative hierarchy (state/province, county, municipality)
Elevation (meters above sea level)
Place name and country information

Example response for Mexico City 06000:

config.json

{

  "postalCode": "06000",

  "country": "MX",

  "placeName": "Centro",

  "latitude": 19.4364,

  "longitude": -99.1553,

  "timezone": "America/Mexico_City",

  "adminLevel1": "Ciudad de México",

  "adminLevel2": "Cuauhtémoc",

  "elevation": 2239

}

Links

Read the full README →View source on GitHub →

Related MCP Servers

View all in Location Services View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars

Stargazers on the source repository.

Last commit

3mo ago

Most recent push to the default branch.

Tools exposed

Callable tools this server registers over MCP.

Directory activity

2 views

Config copies, upvotes, and views on AllMCPs.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Postaldatapi MCP

It can return city, state or region, abbreviations, coordinates, timezone, administrative hierarchy, elevation, place name, and country information.

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/postaldatapi-postaldatapi-mcp?style=directory)](https://allmcps.com/mcp/postaldatapi-postaldatapi-mcp)

HTML Embed

<a href="https://allmcps.com/mcp/postaldatapi-postaldatapi-mcp"><img src="https://allmcps.com/api/badge/postaldatapi-postaldatapi-mcp?style=directory" alt="Postaldatapi MCP on AllMCPs" /></a>

Technical Specs & Signals

CategoryLocation Services

PricingFreemium

10/14 checks healthy over the last 32d

52Quality signal: Good · 52/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools28/30

Adoption & activity1/15

Community engagement0/10

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 22d ago via OSV.dev · postaldatapi-mcp (PyPI)

★ Spotlight Slot

Feature Your MCP Server

Get maximum visibility for your server across our directory, search results, and detail pages.

Spotlight Your Server

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 🗺️ Location Services →Best MCP servers for Maps & Location →Alternatives to Postaldatapi MCP →Install in Claude Desktop Install in Cursor Install in VS Code