• VALID
  • INVALID
  • ERROR
  • HUMAN

How to verify WhatsApp numbers with your AI

Connect 2Chat to your AI client to validate contact lists. Your agent handles the technical check so you don't send messages to non-existent accounts.

Ask AI about this page

Short answer

Can my AI check if a WhatsApp number is real?

Yes. Your AI uses the 2Chat MCP to ping specific numbers and confirm they are active on WhatsApp. You'll get a clear breakdown of which contacts are reachable.

The results.

Where your data lands.

The AI processes your list and categorizes every number based on its status.

VALID

Active accounts

The AI identifies numbers currently registered on WhatsApp. You get a list of contacts ready for outreach.

INVALID

Dead numbers

The AI flags numbers that aren't on WhatsApp. You can safely ignore these in your next campaign.

ERROR

Format issues

If a number is typed wrong, the AI flags it as an error. This tells you which entries need manual fixing.

HUMAN

Manual review

If the check returns an ambiguous result, the AI flags it for you to look at personally.

The workflow

What your AI does when a number arrives.

Your agent acts as a filter for your messaging lists.

  1. Read contact data

    Your AI pulls the phone numbers from your provided source, like a spreadsheet or a text block.

    check_number

  2. Verify WhatsApp status

    The agent checks each number against the WhatsApp network to see if it's active.

    check_number

  3. Filter the list

    The AI separates the valid numbers from the dead ones based on the tool's response.

    check_number

  4. Report findings

    The agent summarizes which numbers are safe to use and which ones failed.

    check_number

Try it

Copy these to start.

Use these prompts to trigger the verification process.

Starting points

Replace the bracketed text with your specific file names or contact lists.

2Chat Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_gIYgVZRSsCmcfI2aNlbQiGt1fMdjjszoR3PuX15f/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — 2Chat capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "2chat-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_gIYgVZRSsCmcfI2aNlbQiGt1fMdjjszoR3PuX15f/mcp"
    }
  }
}
Copy into chat04

  • Check these numbers from my contacts.csv to see if they are on WhatsApp.

  • Verify if the phone numbers in this list are active on WhatsApp.

  • Run a WhatsApp check on the contacts I just pasted here.

  • Check this Google Sheet for valid WhatsApp numbers and tell me which ones failed.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect 2Chat once, then ask.

Link your account in one click. Your credentials stay encrypted, and you can start asking your AI to check numbers immediately.

Connect 2Chat to your AI

FAQ

How this task behaves.

  • 01

    Can the AI send WhatsApp messages?

    No. This tool only checks if a number is active on the platform.

  • 02

    Will the AI change my original spreadsheet?

    No. The AI only reads your data and reports the status; it won't edit your files.

  • 03

    How does the AI verify the numbers?

    It uses the check_number tool to query the WhatsApp network for each number provided.

  • 04

    Can I check a whole list at once?

    Yes. You can provide a file or a long list of numbers for the AI to process.

  • 05

    What if a number is missing a country code?

    The tool will return an error, and your AI will tell you the number couldn't be verified.

  • More questions about 2Chat? The Connector page answers them. See everything the 2Chat Connector can do

Connect 2Chat to Claude, Cursor, ChatGPT & more