MCP Server for AI Agent SMS

The AI agent phone number provider built on MCP. Provision virtual numbers for AI bots and receive SMS — all through the industry-standard Model Context Protocol.

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SMS Verification MCP Integration for AI

The Model Context Protocol (MCP) is rapidly becoming the industry standard for how AI assistants and autonomous agents connect to external tools and services. Think of it as a universal plug that lets any AI system access real-world capabilities.

Quackr's MCP server for SMS verification exposes our entire infrastructure — number provisioning and message receiving — so your AI agents can verify accounts and receive SMS through real phone numbers, just like a human would.

No custom API integrations needed. If your LLM agent or AI assistant supports MCP, it can use Quackr out of the box.

mcp-config.json

{
  "mcpServers": {
    "quackr": {
      "url": "https://mcp.quackr.io/sse",
      "tools": [
        "provision_number",
        "receive_sms",
        "check_messages",
        "release_number"
      ]
    }
  }
}

The Privacy-First AI Agent Phone Number Provider

Generic telco APIs weren't designed for AI agents. Quackr is. As a purpose-built phone number provider for AI bots, our privacy-first infrastructure gives your agents features that matter for autonomous operations.

Disposable Agent Numbers

Provision numbers for a single task, then release them. No trace left behind.

Encrypted Message Storage

All messages are encrypted at rest. Auto-purge after configurable retention periods.

No PII Logging

We don't log message content or phone numbers beyond what's needed for delivery.

Agent Isolation

Each agent gets its own namespace. Numbers and messages are sandboxed per agent.

30+

Countries Supported

<3s

Number Provisioning

99.9%

Uptime SLA

E2E

Encryption

Why Every AI Agent Needs a Phone Number

As AI assistants and autonomous agents go mainstream, they all need a real phone identity to interact with the world. An AI agent phone number provider like Quackr makes this seamless.

SMS Verification

AI bots can sign up for services, verify accounts, and complete 2FA flows autonomously using a virtual number.

Account Creation

AI agents can autonomously create accounts on platforms that require phone verification, handling the entire signup flow.

Two-Factor Authentication

Receive 2FA codes and OTPs on behalf of your agent, enabling secure access to protected services.

Automated Testing

QA and testing agents can verify SMS-based workflows end-to-end using real phone numbers across multiple countries.

AI Agent SMS API via MCP Tools

Your LLM agents get access to these SMS API capabilities through MCP tool calls — no REST boilerplate required.

provision_number

Provision a real virtual number for your AI bot from 15+ countries. Specify country, capabilities, and duration. Numbers are active instantly.

receive_sms

Poll for incoming messages on any provisioned number. Filter by sender or keyword to find the exact verification code your agent needs.

check_messages

Retrieve all messages for a number with timestamps and sender info. Useful for monitoring and reviewing message history.

release_number

Release a number when it's no longer needed. All associated messages are securely wiped. Perfect for disposable agent identities.

How to Get a Phone Number for Your AI Agent

Three steps to give your AI assistant a real phone number identity.

Connect

Add Quackr's MCP server to your AI agent's configuration. Authenticate with your API key.

Provision

Your agent calls provision_number to get a real phone number from any supported country.

Receive

Receive SMS messages and verification codes through the provisioned number. Your agent now has a real phone identity.

SMS API for LLM Agents & AI Assistants

Quackr's MCP integration works with the growing ecosystem of AI frameworks and agents that support the Model Context Protocol.

AI Assistants

Give an AI assistant a phone number — Claude, GPT, Gemini, and other LLM agents with MCP support.

Agent Frameworks

LangChain, CrewAI, AutoGen, and other orchestration frameworks.

Custom Agents

Any custom-built agent or workflow that implements the MCP client protocol.

Ready to get a virtual number for your AI bot? Get early access to Quackr's MCP server for SMS verification. We're onboarding teams building the next generation of AI agents.

Request Early Access