AlterPhone MCP server

AlterPhone is the official remote MCP server from alterphone.app. It answers at https://mcp.alterphone.app/mcp over streamable HTTP and asks you to sign in with your alterphone.app account before it lists its tools, so your client opens a login the first time it connects. Our probes reached it 4 of 4 times since 16 September 2026; the last check, on 22 October 2026, got the sign-in challenge, so it is up.

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

Description as the publisher wrote it.

What AlterPhone needs before it works

A sign-in. The server refused to list its tools to an anonymous client and answered with an authentication challenge, which is how an MCP server protected by OAuth behaves. Add it with one of the setups below; the first connection opens a login for your alterphone.app account, and the tools appear once you have approved it.

Add AlterPhone to your AI client

Every block below points at https://mcp.alterphone.app/mcp. Pick your client and copy.

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

{
  "mcpServers": {
    "alterphone": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.alterphone.app/mcp"]
    }
  }
}

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

{
  "servers": {
    "alterphone": {
      "type": "http",
      "url": "https://mcp.alterphone.app/mcp"
    }
  }
}

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

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

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

name: AlterPhone
version: 0.0.1
schema: v1
mcpServers:
  - name: AlterPhone
    type: streamable-http
    url: https://mcp.alterphone.app/mcp

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

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

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

goose://extension?url=https%3A%2F%2Fmcp.alterphone.app%2Fmcp&type=streamable_http&id=alterphone&name=AlterPhone

Is AlterPhone up right now?

It answered our last check on 22 October 2026 in 204 ms. Over 4 checks since 16 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to AlterPhone

Questions about AlterPhone

Is there an official AlterPhone MCP server?

Yes. It is published by alterphone.app and served from mcp.alterphone.app, the vendor's own domain: https://mcp.alterphone.app/mcp.

How do I sign in to AlterPhone?

Add the server with a setup above. The first time your client connects it opens the sign-in page for alterphone.app; approve it and the tools load.

Is AlterPhone down?

It answered our last check on 22 October 2026 in 204 ms. Over 4 checks since 16 September 2026 it answered 4.

How do I add AlterPhone to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.alterphone.app/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does AlterPhone need an API key?

It needs a sign-in rather than a key you paste: the server answered with an authentication challenge, so your client runs the login when it first connects.

Where this comes from

Publisher: app.alterphone. Endpoint host: mcp.alterphone.app. ARD identifier: urn:air:app.alterphone:mcp:phone-calls. First indexed 16 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.