AlterPhone MCP

Name: AlterPhone MCP
Author: marius-bardan

by marius-bardanversion 1.0.1i★ –iRuns in the cloud

Registry nameapp.alterphone/phone-calls

Install

Overview

Description from the maker (original English)

Place real phone calls and hold spoken conversations on a user's behalf, billed per minute.

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★ –

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 in the cloud
Transport: Streamable HTTP
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 the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.alterphone.app/mcp

Run this in your terminal

claude mcp add --transport http phone-calls https://mcp.alterphone.app/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "phone-calls": {
      "url": "https://mcp.alterphone.app/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": {
    "phone-calls": {
      "type": "http",
      "url": "https://mcp.alterphone.app/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.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.alterphone.app/mcp

Menu names can differ slightly by plan and over time.

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

We have not read this server’s tool list yet; we check endpoints in rotation.

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 against the domain alterphone.app (the registry checks domain ownership)
… 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Chat & emaili

More stars than 0% of the other 1858 servers in this category
Published to the registry more recently than 33% of the other 1858 servers in this category
Basic checks equal to or better than 100% of the other 1858 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 AlterPhone MCP 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 in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 2 months ago.

Which apps can use it?

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.

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 33 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.

AlterPhone MCP

Let your AI assistant make real phone calls.

AlterPhone MCP is a hosted Model Context Protocol server. Connect it to Claude, ChatGPT, Cursor, Claude Code or any other MCP client, and the assistant can dial a real phone number, hold a spoken conversation in one of 12 languages, and report back what was said: book or reschedule appointments, ask a business a question, negotiate, confirm an order, screen a caller, run a survey.

Server URL: https://mcp.alterphone.app/mcp (Streamable HTTP)
Registry name: app.alterphone/phone-calls in the official MCP Registry
Auth: OAuth 2.1 with PKCE and dynamic client registration. Sign in with Google or Apple on first use.
Billing: prepaid credits, 100 credits per US dollar, per started minute at the destination rate (about 8 credits per minute to the US). Same account and balance as the AlterPhone app.

Full details, tools and supported countries: https://alterphone.app/mcp.html

Quick start

Claude (claude.ai and Claude Desktop)

Settings → Connectors → Add custom connector → enter https://mcp.alterphone.app/mcp → complete the sign-in.

ChatGPT

Settings → Connectors → create a connector with the server URL https://mcp.alterphone.app/mcp → complete the sign-in. Custom MCP connectors require developer mode on your plan.

Claude Code

claude mcp add --transport http -s user alterphone https://mcp.alterphone.app/mcp

Cursor, Windsurf and other clients with an MCP config file

"mcpServers": { "alterphone": { "url": "https://mcp.alterphone.app/mcp" } } }

Clients that only run local (stdio) servers

This package is a thin bridge for that case. It delegates to mcp-remote, which performs the browser sign-in, caches the tokens locally and forwards every message to the hosted server:

"mcpServers": { "alterphone": { "command": "npx", "args": ["-y", "alterphone-mcp"] } } }

Requires Node.js 18 or newer. Set ALTERPHONE_MCP_URL to point the bridge at a different server.

Tools

Tool	Description
`have_conversation`	Dial a number and pursue an objective autonomously. Streams the transcript and returns the collected answers and a summary. The main tool.
`place_call`	Dial a number, optionally with a greeting, for turn-by-turn control.
`speak_and_listen`	Say something and return what the other party replied.
`listen`	Wait for the other party to speak and return the transcript.
`hangup`	End the call.
`get_balance`	Read the prepaid credit balance.
`purchase_credits`	Top up with the saved payment method, within a daily cap.

Every tool carries readOnlyHint / destructiveHint annotations.

Safety and limits

Outbound calls only, to the US, Canada, the UK, Germany, France, Italy, Spain, the Netherlands, Belgium, Portugal, Poland, Romania, Turkey, Russia, India, Australia, Saudi Arabia, the UAE, Egypt, Morocco, Algeria, Tunisia and Libya.
Emergency, premium-rate and satellite numbers are refused before dialing. Conversation plans are screened for fraud, harassment, impersonation and other prohibited uses.
One active call per account. Transcripts are kept for 24 hours; see section 12 of the privacy policy.

For developers

OAuth discovery: https://mcp.alterphone.app/.well-known/oauth-protected-resource; authorization server https://alterphone.app.
Scopes: calls:write, balance:read, credits:purchase.
REST description of the call service, for integrations that do not speak MCP: https://calls.alterphone.app/openapi.json
Machine-readable summary: https://alterphone.app/llms.txt

Support

support@alterphone.app · Terms of service

License

MIT

AlterPhone MCP

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

AlterPhone MCP

Quick start

Claude (claude.ai and Claude Desktop)

ChatGPT

Claude Code

Cursor, Windsurf and other clients with an MCP config file

Clients that only run local (stdio) servers

Tools

Safety and limits

For developers

Support

License