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Glama
Lulu-The-Narwhal

postal-lookup-mcp

by Lulu-The-Narwhal
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
MCP_TRANSPORTNoTransport for the MCP server. Set to 'http' for HTTP mode (default is stdio).
POSTAL_LOCAL_DEVNoSet to '1' to enable local development mode when running over HTTP.

Instructions

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Capabilities

Features and capabilities supported by this server

Protocol revision2025-11-25

CapabilityDetails
tools
{
  "listChanged": true
}
logging
{}
prompts
{
  "listChanged": false
}
resources
{
  "subscribe": false,
  "listChanged": false
}
extensions
{
  "io.modelcontextprotocol/ui": {}
}
experimental
{}

Tools

Functions exposed to the LLM to take actions

NameDescription
lookup_postal_codeA

Resolve a postal/ZIP code to its place name(s), state/region, and coordinates. country_code is a 2-letter ISO code (US, GB, DE, ...); postal_code format varies by country (e.g. "90210" for the US, "SW1A 1AA" style outward codes for the UK). Use for "what city is ZIP 90210 in", "where is postal code X in country Y", or any question that needs a place name/region/lat-lon from a postal code -- not for the reverse (place name to postal code) or for full street address lookup. Some postal codes span multiple places, in which case all of them are returned. Returns an error dict (never raises) if the code isn't recognized for that country.

Prompts

Interactive templates invoked by user choice

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription
sponsored_card
result_widget_lookup_postal_code
Deploy Server
One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

TDQS

A4.9/5.0

Scored across 1 tool

Disambiguation5/5

With only one tool, there is no possibility of confusing it with others. The description clearly delineates what it does and does not do (e.g., not reverse lookup or full address lookup), so an agent can unambiguously select it for postal-code-to-place queries.

Naming Consistency5/5

The single tool name 'lookup_postal_code' follows a clear verb_noun pattern and is self-descriptive. Consistency is trivially satisfied since there's only one name, but the name itself is well-structured and aligns with common conventions.

Tool Count4/5

One tool is below the typical 3-15 range, but the server's scope is extremely narrow: resolving postal codes to place information. The single tool fully addresses this purpose, so the count feels slightly under but reasonable rather than thin or inadequate.

Completeness5/5

The tool provides complete coverage for its stated domain: it resolves postal codes to place names, region, and coordinates, handles multi-place spans, and returns error dicts for unrecognized codes. No obvious missing operations for the declared purpose of postal code lookup.

Maintenance

ActivitySlowing
ResponsivenessNo issues

Resources