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CodePostalPro

R0· no sign-in

Postal lookups for 120 countries with cited sources; deep US tier: demographics, climate, area codes

v1.1.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality88good
Trust82of 100
Uptime, 30 days98%
Latency p50539 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "postal-codes": {
      "type": "http",
      "url": "https://api.codepostalpro.com/mcp",
      "headers": {
        "X-Api-Key": "${X_API_KEY}"
      }
    }
  }
}
claude mcp add --transport http postal-codes https://api.codepostalpro.com/mcp --header "X-Api-Key: ${X_API_KEY}"
[mcp_servers.postal-codes]
url = "https://api.codepostalpro.com/mcp"
env_http_headers = { "X-Api-Key" = "X_API_KEY" }
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "postal-codes": {
      "type": "remote",
      "url": "https://api.codepostalpro.com/mcp",
      "enabled": true,
      "headers": {
        "X-Api-Key": "{env:X_API_KEY}"
      }
    }
  }
}
{
  "mcpServers": {
    "postal-codes": {
      "type": "http",
      "url": "https://api.codepostalpro.com/mcp",
      "headers": {
        "X-Api-Key": "${X_API_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=postal-codes&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYXBpLmNvZGVwb3N0YWxwcm8uY29tL21jcCIsImhlYWRlcnMiOnsiWC1BcGktS2V5IjoiJHtYX0FQSV9LRVl9In19"
}
{
  "servers": {
    "postal-codes": {
      "type": "http",
      "url": "https://api.codepostalpro.com/mcp",
      "headers": {
        "X-Api-Key": "${X_API_KEY}"
      }
    }
  }
}
{
  "mcpServers": {
    "postal-codes": {
      "httpUrl": "https://api.codepostalpro.com/mcp",
      "headers": {
        "X-Api-Key": "${X_API_KEY}"
      }
    }
  }
}
extensions:
  "postal-codes":
    enabled: true
    name: "postal-codes"
    type: streamable_http
    uri: "https://api.codepostalpro.com/mcp"
    headers:
      "X-Api-Key": "${X_API_KEY}"
    timeout: 300

Placeholders to fill from your own secret store: ${X_API_KEY}. The registry never accepts secret values.

Quality 88 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene93 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • warn
    tools.description_length1 tools have descriptions over 1,024 characters, which crowds the context
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations7 of 7 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 1,452 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

7 tools, about 1,452 tokens to load them all · tool set 21246844de5b · checked 2026-10-20 09:31 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository
provenance55
liveness99
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-98% +updated-28d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://api.codepostalpro.com/mcp streamable-httpnoneyes98%539 ms2025-06-182026-10-20

Tools (7)

area_code_lookupread-onlyWhere a US telephone area code is used: the state(s) it serves, the cities with the most ZIPs listing it, total ZIP and city counts, and `overlay_codes` — codes assigned to the same territory (e.g. 310 and 424 in west Los Angeles). Use it for "where is area code 310", "what area code is Denver" (via the city’s ZIPs instead), or to sanity-check a phone number’s geography. Caveat to relay: NANPA assigns codes to rate centres, matched here to cities — city-level accuracy, not a legal boundary, and a mobile number keeps its code when its owner moves.
get_groupread-onlyA city (US), département (France), province (Morocco), post office (Algeria) or delegation (Tunisia) with all its localities / ZIP codes. For a US city this is the complete list of its ZIP codes with coordinates, time zone and area codes. Needs the region slug and the group slug (both from get_region or from any record's `region.slug` / `group.slug`).
get_regionread-onlyA state, région, wilaya or governorate with the list of its cities / départements / delegations (names, slugs and their postal codes), plus for US states every telephone area code in use. Use the slugs it returns to call get_group or get_place. Region slugs are lower-case hyphenated names: "texas", "ile-de-france", "alger".
list_countriesread-onlyCoverage overview: the eight curated countries with postal-code format, hierarchy labels (e.g. state › city › ZIP), key facts (capital, population, area, currency, calling code) and time zones — plus `bulk_tier` with per-country postal-code counts for the ~115 additional countries served from GeoNames. Call it once if unsure whether a country is covered.
lookup_postal_coderead-onlyLook up a postal code or US ZIP code. Returns every locality that carries the code with its city, county/administrative division, region (state, département, wilaya…), coordinates, IANA time zone, US telephone area codes, USDA 2023 plant hardiness / planting zone (e.g. 7b with its temperature band), and US Census demographics (population, density and land area, median household and per-capita income, median age, households, housing units, median home value, median gross rent — measured for the ZCTA, the Census approximation of the ZIP area). Each record lists its `sources` and a `verification` status (cross-checked | source-single | conflict | unverified); on `conflict`, `alternate_codes` gives the competing values and their sources — never pick one silently; tell the user both. Curated coverage (full records): United States (ZIP), Germany, Austria, Spain, France, Algeria, Tunisia, Morocco. All other countries (~115 more: GB, CA, IN, JP, MX, BR…) return bulk-tier records — place name, admin areas and coordinates from GeoNames, marked `tier: "bulk"` and single-source, without demographics.
nearby_placesread-onlyList localities around a latitude/longitude, nearest first, each with `distance_km`. Use it for "what ZIP codes are near…", "postal codes within 10 km of…", or to resolve coordinates to the closest postal code (the first result). Distances are to the locality centroid from the source data, not to a boundary.
search_placesread-onlyFind localities by name, city name, or the beginning of a postal code. Use this when the user gives a place name and wants its postal code(s), or has a partial code. Results are ranked exact-name-first, then by population. Returns the same full records as lookup_postal_code. Restrict with `country` whenever it is known — names repeat across countries and states (there are many Springfields). With a non-curated `country` (GB, CA, JP…), searches the bulk GeoNames tier by place name or postal-code prefix.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "com.codepostalpro/postal-codes",
  "title": "CodePostalPro",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://api.codepostalpro.com/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "X-Api-Key",
          "isSecret": true,
          "description": "Optional free API key (raises the daily limit from 1,000 to 5,000 calls; get one at https://codepostalpro.com/api/)"
        }
      ]
    }
  ],
  "version": "1.1.0",
  "websiteUrl": "https://codepostalpro.com/api/",
  "description": "Postal lookups for 120 countries with cited sources; deep US tier: demographics, climate, area codes"
}