Mmcp.market

Postal Lookup MCP server

by Lulu-The-Narwhal·io.github.Lulu-The-Narwhal/postal-lookup-mcp·v0.1.1
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Free, keyless postal/ZIP code lookup: place name(s), state/region, and coordinates.

C67/100grade C
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Safety scan
C67/100

full report

Adoption
New

Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

Postal Lookup MCP tools (1)

write = sends, deletes, buys or posts
  • lookup_postal_codeFree

    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.

Public scan report

scanner v0.1.9 · 2026-09-23 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 546ms20/20
  • Tool poisoning1 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancerepository not readable: repo not found3/15
  • Maintainer identityno repository or website to verify2/10
Overall 67/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http postal-lookup-mcp https://ads.getlulu.dev/postal/mcp
Add to Cursor

Postal Lookup MCP: common questions

Is Postal Lookup MCP server safe?
With care: it is graded C, so read the findings first (67/100). Read the Postal Lookup MCP safety report
How do I install Postal Lookup MCP?
It runs remotely at ads.getlulu.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Postal Lookup MCP need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Postal Lookup MCP maintained?
The latest release is v0.1.1.
Is Postal Lookup MCP up?
100% of our last 19 checks got an answer. We check remote servers about four times a day.

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