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How to connect Veriphone to Claude

Connect Claude Web, Desktop and Cowork to Veriphone MCP. Check if this phone number is valid, get the carrier for this mobile number, and more using natural language, with authentication handled for you.

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Veriphone is an API for real-time phone number validation, type detection, and carrier lookup. Instantly verify phone numbers to reduce fraud and ensure reliable user data.

2 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Veriphone account to Claude via Composio Connect, enabling it to check if this phone number is valid, get the carrier for this mobile number, find an example landline number for Germany, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Veriphone with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Veriphone to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Veriphone account

Back in Claude, ask it to connect to Veriphone or give it any Veriphone-related task.

For example, ask Claude to:

  • "Check if this phone number is valid"
  • "Get the carrier for this mobile number"
  • "Find an example landline number for Germany"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Veriphone account is ready to use.

What is the Veriphone Claude Connector, and what's possible with it?

The Veriphone MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Veriphone account. It provides structured and secure access to real-time phone number validation, so your agent can verify phone numbers, check carrier and region information, and fetch example numbers for any country on your behalf.

  • Instant phone number validation: Quickly confirm if a phone number is valid, correctly formatted, and active in real time.
  • Carrier and region lookup: Let your agent identify the carrier, line type, and geographical region associated with any phone number.
  • Retrieve example phone numbers: Ask your agent to generate example mobile or landline numbers for any country and type, useful for testing or onboarding flows.
  • Automated formatting checks: Ensure submitted numbers follow local and international standards before you store or use them in your application.

Troubleshooting

1. Why does Claude not use the Composio connector for Veriphone?

The connector can show as connected, but Claude must use it in each Veriphone conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Veriphone again.

2. Why does Claude show an MCP server error before Veriphone connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Veriphone.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Veriphone.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Veriphone authorization link not work?

The Composio connector is one server. Your Veriphone account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Veriphone connection.
  • Composio creates a fresh Veriphone authorization link.
  • Open that link in your browser and finish the Veriphone sign-in.

4. Why do Veriphone actions fail after they worked before?

The Veriphone connection can expire or lose permission.

  • Ask Claude to inspect the Veriphone connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Veriphone account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Veriphone.
  • If the action still fails with a permission error, check that the connected account has that permission in Veriphone itself.

5. How do I switch to a different Veriphone account?

Claude can manage the Veriphone connection for you.

  • Ask Claude to disconnect or delete the current Veriphone account.
  • Ask Claude to connect Veriphone again.
  • Open the new Composio authorization link for Veriphone.
  • Sign in with the other Veriphone account in the browser.
  • After the account connects, ask Claude to retry the Veriphone task.

6. Why is my Veriphone connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Veriphone connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Veriphone tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Veriphone.
TOOLS

Supported Tools

Every Veriphone action and event your agent gets out of the box.

Get Example Phone Number

Tool to retrieve an example phone number for a specified country and type.

Verify Phone Number

Tool to verify if a phone number is valid.

FRAMEWORKS

How to build Veriphone MCP Agent with another framework

Claude Code logo

Claude Code

Use Veriphone MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Veriphone MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Veriphone MCP with Claude Agent SDK

Codex logo

Codex

Use Veriphone MCP with Codex

OpenClaw logo

OpenClaw

Use Veriphone MCP with OpenClaw

Hermes logo

Hermes

Use Veriphone MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Veriphone MCP with Atomic Agent

Google ADK logo

Google ADK

Use Veriphone MCP with Google ADK

LangChain logo

LangChain

Use Veriphone MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Veriphone MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Veriphone MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Veriphone MCP with LlamaIndex

CrewAI logo

CrewAI

Use Veriphone MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Veriphone MCP with Pydantic AI

AutoGen logo

AutoGen

Use Veriphone MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Veriphone MCP server, the agents and LLMs can only access a fixed set of Veriphone tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Veriphone and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Veriphone tools.

Yes, absolutely. You can configure which Veriphone scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Veriphone data and credentials are handled as safely as possible.

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