Model Context ProtocolSandbox Availablev0.1.2

Mobile Proxies, SMS & eSIMs for AI Agents

Open-source MCP server with 18 tools that give AI agents direct access to mobile proxies, US non-VoIP SMS verification, and global eSIM data plans. Works with Claude Code, Claude Desktop, Cursor, and any MCP-compatible client.

$ npx -y @voidmob/mcp

GitHub npmMIT License

Quick Start

Add VoidMob to your MCP client in one command. The sandbox starts with a $50 balance - no API key needed.

Claude Code

$ claude mcp add voidmob -- npx -y @voidmob/mcp

Claude Desktop

Add to claude_desktop_config.json:

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

Cursor

Add to .cursor/mcp.json:

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

Sandbox mode: The server starts with a $50 balance and simulates real service behavior. No authentication required. Session data persists during the session but resets on server restart.

18 Tools, 5 Categories

Every tool your AI agent needs to work with mobile infrastructure - from searching and pricing to purchasing and monitoring.

Mobile Proxies

5 tools - Pay-per-GB and dedicated monthly options

search_proxies

Browse by country and proxy type

get_proxy_pricing

Check per-GB or dedicated pricing

purchase_proxy

Buy bandwidth with carrier selection

get_proxy_status

Monitor usage and connection details

rotate_proxy

Get a fresh IP address instantly

US Non-VoIP SMS

5 tools - Real US numbers for verification

search_sms_services

Find services by name or category

get_sms_price

Check pricing for a specific service

rent_number

Rent a phone number (5-min window)

get_messages

Check for incoming SMS codes

cancel_rental

Cancel and refund if unused

Global eSIM Plans

5 tools - Data plans across 100+ countries

search_esim_plans

Find plans by country, data, duration

get_esim_plan_details

Full specs, APN settings, top-up info

purchase_esim

Buy plan and receive QR code

get_esim_usage

Track data consumed and remaining

topup_esim

Add more data to active plans

Wallet

2 tools

get_balance

Balance and transaction history

deposit

Add funds via BTC, ETH, or SOL

Orders

1 tool

list_orders

View all orders across SMS, eSIM, and proxy services

How It Works

Agent Workflow Example

1.Agent needs to verify an account

2.Calls purchase_proxy → gets mobile IP

3.Calls rent_number → gets US number

4.Completes signup form via proxy

5.Calls get_messages → reads verification code

6.Verifies account → done

Developer Experience

One command to add VoidMob to your MCP client

Sandbox mode - no API key needed to get started

18 tools auto-discovered by your AI agent

No API client code - agents call tools directly

Crypto deposits (BTC, ETH, SOL) for wallet funding

Pay-per-use - only pay for what agents consume

Open Source

MIT licensed. Review the code, open issues, submit PRs, or fork it. Built with the official MCP SDK and Zod validation.

View on GitHub

Standard Protocol

Built on Anthropic's MCP specification with @modelcontextprotocol/sdk. Compatible with Claude, Cursor, and any MCP-supporting client.

What is Model Context Protocol?

Model Context Protocol (MCP) is an open standard developed by Anthropic for connecting AI agents to external tools and data sources. Think of it as a universal adapter that lets AI systems like Claude request services, read files, query databases, or interact with APIs - all through a standardized interface.

Why MCP Matters for AI Agents

Zero-friction integration

Agents discover and use tools automatically

Standardized interface

One protocol, unlimited service providers

Autonomous workflows

Agents request services without manual API coding

Composable tooling

Mix and match services from different providers

For developers, MCP eliminates repetitive integration work. Instead of writing custom API clients for every service your AI agent needs, you configure MCP servers once and agents can discover capabilities on their own. For AI agents, MCP provides a structured way to access external functionality that wasn't part of their training data.

Future: x402 Micropayments

Autonomous Payments for Autonomous Agents

We're exploring x402 payment integration for VoidMob's MCP server. This would enable AI agents to pay for services automatically using Lightning Network micropayments - no API keys, no accounts, no subscriptions.

Agent requests service

Calls MCP tool → receives payment invoice

Automatic payment

Agent's Lightning wallet pays invoice instantly (under 1 second)

Service delivered

Payment verified → proxy/SMS credentials returned immediately

Why this matters: Agents don't need pre-funded accounts or API keys. They pay only when requesting services, just like handing cash to a vending machine. Complete privacy, zero friction, perfect for autonomous systems.

Learn more about x402 payments

What Developers Are Building

Testing Automation

AI agents that test signup flows, verification systems, and geo-restrictions automatically

“Claude, test our SMS verification flow from 10 different countries” → Agent uses MCP to provision numbers and proxies, completes tests, reports results

Account Management

Agents that create and maintain multiple accounts for legitimate business use cases

E-commerce sellers managing marketplace accounts, social media managers handling client profiles, QA teams maintaining test accounts

Research & Analysis

Data collection agents that gather publicly available information through real mobile IPs

Market research, competitive analysis, price monitoring - agents use real carrier IPs to appear as legitimate mobile users

Privacy Workflows

Agents that help users maintain digital privacy and anonymity

Creating anonymous accounts, testing privacy tools, verifying services work without revealing personal information

Try It Now

Start Building with VoidMob MCP

Install the sandbox, get $50 in test credits, and start building. Join the waitlist for production API access with real infrastructure.