Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Postal lookups for 120 countries with cited sources; deep US tier: demographics, climate, area codes
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
X-Api-KeyValues marked secret are keys to your account. Never share them or paste them into a chat.
You need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Run this in your terminal
claude mcp add --transport http postal-codes https://api.codepostalpro.com/mcp --header 'X-Api-Key: your-value'Fill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"postal-codes": {
"url": "https://api.codepostalpro.com/mcp",
"headers": {
"X-Api-Key": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"postal-codes": {
"type": "http",
"url": "https://api.codepostalpro.com/mcp",
"headers": {
"X-Api-Key": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Your choice stays on this device in a cookie; no account needed.
X-Api-Key secret HTTP headerThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 9, 2026. The maker wrote them, not us; we show them as plain text.
lookup_postal_codeLook 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 it
search_placesFind 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. Rest
nearby_placesList 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 so
get_regionA 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 hyphena
get_groupA 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
area_code_lookupWhere 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
list_countriesCoverage 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 countrie
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 9, 2026
The registry lists no source repo, so we cannot match the publisher (codepostalpro.com) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 847 ms (HTTP 200)
No sign-in needed
Read 7 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
You need to fill in: X-Api-Key
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 2 months ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, Show HN Launches — buy per-query in-session (showhnwatch)
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Show HN: indie launches & side projects. $0.01/query. Be born in one call — free testnet funds.
No README found in the repo