AreaCode.fyi MCP Server

Name: AreaCode.fyi MCP Server
Author: riv-lc

by riv-lcversion 0.2.2i★ –iRuns on your computer

Registry nameio.github.riv-lc/areacode-mcp

Install

Overview

Description from the maker (original English)

North American (NANP) area-code & phone-number intelligence for AI agents, by areacode.fyi.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 55/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Chat & email

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "areacode": {
      "command": "npx",
      "args": [
        "-y",
        "@riv-lc/areacode-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add areacode -- npx -y @riv-lc/areacode-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "areacode": {
      "command": "npx",
      "args": [
        "-y",
        "@riv-lc/areacode-mcp"
      ]
    }
  }
}

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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "areacode": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@riv-lc/areacode-mcp"
      ]
    }
  }
}

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 one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

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 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account riv-lc, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Chat & emaili

More stars than 0% of the other 1854 servers in this category
Published to the registry more recently than 13% of the other 1854 servers in this category
Basic checks equal to or better than 100% of the other 1854 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is AreaCode.fyi MCP Server safe?

It passed 1 of 1 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.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.2.2) reached the registry 5 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

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

Vexa

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

by Vexa-aiWidely used★ 2.9KUpdated 2 months ago

Runs in the cloud✓ vexa.ai

Install

emailmd

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

by anypostGrowing↓ 5.3K/wk★ 1.4KUpdated 32 days ago

Computer or cloud✓ emailmd.dev

Install

MCP WhatsApp Cloud

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

by codesparEarly↓ 63/wk★ 277Updated 5 months ago

Runs on your computer

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

areacode-mcp

North American (NANP) area-code & phone-number intelligence for AI agents.

An MCP server that gives Claude, Cursor, and other agents a small, trusted reference for US & Canada phone numbering — area codes, NANP validation, local time, city/state coverage, overlays, and scam/spoofing context. Backed by areacode.fyi, which publishes directly from the official NANPA numbering database. Every result includes a canonical areacode.fyi URL and the source date.

Scope. This is area-code-level reference and education — not a

carrier/identity API. It does not return a caller's identity, exact

location, or live/ported carrier, and caller ID can be spoofed, so a number's

area code never proves who is calling. For caller identity you need a

carrier-grade (LRN/HLR) provider.

Install

Run it with npx (no install needed) — add it to your client's MCP config.

Claude Desktop (claude_desktop_config.json) / Cursor (~/.cursor/mcp.json):

"mcpServers": { "areacode": { "command": "npx", "args": ["-y", "@riv-lc/areacode-mcp"] } } }

That's it — restart your client and the tools below are available.

Published on the official MCP Registry as io.github.riv-lc/areacode-mcp, and on npm.

Remote (hosted) — for ChatGPT, Claude.ai, and web clients

No install. Add the hosted server as a connector URL — same 8 tools, no key:

https://mcp.areacode.fyi/mcp

(legacy SSE clients: https://mcp.areacode.fyi/sse)

Tools

Tool	What it does
`lookup_area_code`	Country, state/province, cities, time zone, current local time, overlays, nearby codes
`lookup_phone_number`	Parse/validate a NANP number → area code, region, local time, E.164
`lookup_carrier`	Assigned carrier, line type (wireless/landline), and rate center for a number's NPA-NXX block (block-allocation data, not live/ported; covers nearly every US/Canada code)
`area_codes_for_city`	Area codes serving a city (optionally disambiguated by state)
`area_codes_for_state`	Every area code in a US state or Canadian province
`is_scam_area_code`	Scam/spoofing context for an area code + an aggregate of FTC Do Not Call complaints filed about numbers using that code
`check_number_reputation`	Unverified community signal (low / mid / high) plus public FTC Do Not Call complaint data (count, % robocalls, top subject) for a number
`explain_area_code_topic`	Source-backed explainers: neighbor spoofing, overlays vs splits, toll-free, area-code-vs-country-code, temporary numbers

Example prompts

*"A lead entered phone number +1 702-555-0199. Where are they likely located and what time is it there?"*
*"I got a call from 469 — is that area code suspicious?"*
*"Which area codes cover Las Vegas?"*
*"Normalize this list of US/Canada numbers and flag any that are invalid or toll-free."*
*"Explain neighbor spoofing for a help-center article."*

Configuration

Env var	Default	Purpose
`AREACODE_API_BASE`	`https://areacode.fyi`	Point at a different host (e.g. a self-hosted or staging API)

Data & sourcing

Tools call the public https://areacode.fyi/api/v1 JSON API, which reads the same dataset the site renders — sourced from the official North American Numbering Plan Administrator (NANPA) database and refreshed monthly. Each response carries source, canonical_url, and data_date so answers can cite where the data came from.

The check_number_reputation signal is unverified and crowd-sourced (low = people looked the number up; mid/high = it has user reports). It is never proof that a specific number is fraudulent.

AreaCode.fyi MCP Server

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

areacode-mcp

Install

Remote (hosted) — for ChatGPT, Claude.ai, and web clients

Tools

Example prompts

Configuration

Data & sourcing

License