Best Microsoft Teams Phone Validation API & Email Verification Integration 2025

const { TeamsActivityHandler, CardFactory, MessageFactory } = require('botbuilder');

class ContactValidationBot extends TeamsActivityHandler {
    constructor() {
        super();
        
        this.onMessage(async (context, next) => {
            const userMessage = context.activity.text;
            
            if (userMessage.includes('validate')) {
                await this.handleValidationRequest(context);
            }
            
            await next();
        });
    }
    
    async handleValidationRequest(context) {
        const contact = this.extractContact(context.activity.text);
        const validationResult = await this.validateContact(contact);
        
        const card = this.createValidationCard(validationResult);
        await context.sendActivity(MessageFactory.attachment(card));
    }
    
    async validateContact(contact) {
        const response = await fetch('https://app.1lookup.io/api/v1/validate', {
            method: 'POST',
            headers: {
                'Authorization': 'Bearer YOUR_API_KEY',
                'Content-Type': 'application/json'
            },
            body: JSON.stringify(contact)
        });
        
        return await response.json();
    }
}

{
  "type": "AdaptiveCard",
  "version": "1.4",
  "body": [
    {
      "type": "TextBlock",
      "text": "Contact Validation Result",
      "weight": "Bolder",
      "size": "Medium"
    },
    {
      "type": "FactSet",
      "facts": [
        {
          "title": "Phone Status:",
          "value": "${validation.phone.status}"
        },
        {
          "title": "Email Status:",
          "value": "${validation.email.status}"
        },
        {
          "title": "Risk Score:",
          "value": "${validation.risk_score}"
        }
      ]
    }
  ],
  "actions": [
    {
      "type": "Action.Submit",
      "title": "Get Details",
      "data": {
        "action": "getDetails",
        "validationId": "${validation.id}"
      }
    }
  ]
}