How do I install AlterPhone MCP?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does AlterPhone MCP need an API key?

No required environment variable is listed on this record.

What transport does AlterPhone MCP use?

AlterPhone MCP is reached over HTTP.

When was AlterPhone MCP last checked?

Last checked 2026-11-07. Place real phone calls and hold spoken conversations on a user's behalf, billed per minute.

AlterPhone MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://mcp.alterphone.app/mcp

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http app.alterphone-phone-calls https://mcp.alterphone.app/mcp

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "app.alterphone-phone-calls": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://mcp.alterphone.app/mcp"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Transport: http
Version: 1.0.1
Last checked

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

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

[email protected] · Terms of service

License

MIT

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install AlterPhone MCP?

Does AlterPhone MCP need an API key?

What transport does AlterPhone MCP use?

When was AlterPhone MCP last checked?

Documentation

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