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How to connect Veriphone MCP to Claude

Connect Claude Web, Desktop and Cowork to Veriphone MCP. Validate phone numbers before creating contacts, check carrier and line type instantly, and more using natural language, with authentication handled for you.

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Veriphone MCP is a hosted phone verification service for validating numbers, carriers, and coverage. It helps teams improve contact data quality with fast, structured phone intelligence.

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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 validate phone numbers before creating contacts, check carrier and line type instantly, review remaining Veriphone account credits, 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 MCP with

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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:

  • "Validate phone numbers before creating contacts"
  • "Check carrier and line type instantly"
  • "Review remaining Veriphone account credits"

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 phone validation, number formatting, carrier details, coverage information, example numbers, and credit usage, so your agent can verify phone numbers, format them for different regions, inspect carriers, check supported countries, and review account credits on your behalf.

  • Phone number validation: Have your agent verify a phone number and return its line type, carrier, country, region, and E.164, international, and local formats.
  • Bulk number verification: Let the agent validate up to 50 phone numbers in one request and return the results in the same order as the inputs.
  • Carrier and region details: Direct your agent to identify whether a number is mobile, fixed line, VoIP, toll free, or another supported type, along with its carrier and location.
  • Coverage and example numbers: Instruct your agent to find countries that support current carrier lookup and generate valid example numbers for a country and line type.
  • Credit and usage tracking: Have your agent check your plan, monthly limit, credits used, pay-as-you-go balance, and usage split between static and current modes.

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 MCP action and event your agent gets out of the box.

Current coverage

Which countries support mode "current" (the carrier currently serving a number, after porting).

Example number

A syntactically valid example phone number for a country and line type (MOBILE, FIXED_LINE, TOLL_FREE, VOIP…), useful for testing formats.

Get credits

The account's plan, monthly limit, credits used this period, pay-as-you-go balance, and usage split by static/current mode.

Verify phone

Validate one phone number and return its line type (mobile, fixed_line, voip, toll_free…), carrier, country, region, and formats (E.

Verify phones

Validate up to 50 phone numbers in one call (same fields as verify_phone, one result per input, in order).

FRAMEWORKS

How to build Veriphone MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Veriphone MCP with ChatGPT

Hermes logo

Hermes

Use Veriphone MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Veriphone MCP with Atomic Agent

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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