> 🔑 [Get API Key](https://app.cloudcontactai.com/register) Learn how to send your first SMS using the CCAI C# SDK ## Prerequisites To get the most out of this guide, you'll need to: * Sign up for a CCAI Trial Account [here](https://app.cloudcontactai.com/register) * Get your Client ID from Account\Settings * Create\Copy an API Key from Account Settings

## 1. Install Get the CCAI C# SDK ```text dotnet add package CloudContactAI.CCAI.NET ``` ## 2. Send SMS message ```csharp using CCAI.NET; using CCAI.NET.SMS; // Initialize the client var config = new CCAIConfig { ClientId = "YOUR-CLIENT-ID", ApiKey = "YOUR-API-KEY" }; using var ccai = new CCAIClient(config); // Send a single SMS var response = await ccai.SMS.SendSingleAsync( firstName: "John", lastName: "Doe", phone: "+15551234567", message: "Hello ${FirstName}, this is a test message!", title: "Test Campaign" ); Console.WriteLine($"Message sent with ID: {response.Id}"); // Send to multiple recipients var accounts = new List { new Account { FirstName = "John", LastName = "Doe", Phone = "+15551234567" }, new Account { FirstName = "Jane", LastName = "Smith", Phone = "+15559876543" } }; var campaignResponse = await ccai.SMS.SendAsync( accounts: accounts, message: "Hello ${FirstName} ${LastName}, this is a test message!", title: "Bulk Test Campaign" ); Console.WriteLine($"Campaign sent with ID: {campaignResponse.CampaignId}"); ``` ## 3. Email Usage ```csharp using CCAI.NET; using CCAI.NET.Email; using DotNetEnv; // Load environment variables Env.Load(); // Initialize the client var config = new CCAIConfig { ClientId = Environment.GetEnvironmentVariable("CCAI_CLIENT_ID") ?? throw new InvalidOperationException("CCAI_CLIENT_ID not found"), ApiKey = Environment.GetEnvironmentVariable("CCAI_API_KEY") ?? throw new InvalidOperationException("CCAI_API_KEY not found") }; using var ccai = new CCAIClient(config); // Send a single email var response = await ccai.Email.SendSingleAsync( firstName: "John", lastName: "Doe", email: "john@example.com", subject: "Welcome to Our Service", message: "

Hello ${FirstName},

Thank you for signing up!

", senderEmail: "noreply@yourcompany.com", replyEmail: "support@yourcompany.com", senderName: "Your Company", title: "Welcome Email" ); Console.WriteLine($"Email sent with ID: {response.Id}"); // Send to multiple recipients var emailAccounts = new List { new EmailAccount { FirstName = "John", LastName = "Doe", Email = "john@example.com" }, new EmailAccount { FirstName = "Jane", LastName = "Smith", Email = "jane@example.com" } }; var campaign = new EmailCampaign { Subject = "Monthly Newsletter", Title = "July 2025 Newsletter", Message = @"

Monthly Newsletter - July 2025

Hello ${FirstName},

Here are our updates for this month...

", SenderEmail = "newsletter@yourcompany.com", ReplyEmail = "support@yourcompany.com", SenderName = "Your Company Newsletter", Accounts = emailAccounts, CampaignType = "EMAIL", AddToList = "noList", ContactInput = "accounts", FromType = "single", Senders = new List

Monthly Newsletter - July 2025

Reminder: Upcoming Event