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5 AI-Powered NuGet Packages That Will Save You Weeks of Integration Work

#dotnet #ai #nuget #csharp

Every .NET project I've worked on in the last two years has had the same story: "we need AI-powered X." Then someone spends a week writing API wrappers, handling rate limits, wiring up dependency injection, and writing tests before the actual feature work can begin.

These five packages eliminate that work.

1. ForeverTools.EmailAI — AI Email Composition and Classification 

dotnet add package ForeverTools.EmailAI
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What it does: compose emails from bullet points, generate contextual replies, summarize long threads, and classify emails by category/priority/sentiment.

services.AddForeverToolsEmailAI(config["AIML_API_KEY"]);

// In your handler:
var email = await _emailAI.ComposeAsync(new ComposeRequest
{
    Subject = "Project update for Q2",
    BulletPoints = new[] { "Shipped feature X", "Delayed feature Y by 2 weeks", "Need sign-off on Z" },
    Tone = EmailTone.Professional
});
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One call. No prompt engineering. No token counting. Just a clean, typed result.

Download: ForeverTools.EmailAI on NuGet

2. ForeverTools.Sentiment — Emotion Detection Beyond Positive/Negative 

dotnet add package ForeverTools.Sentiment
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Most sentiment libraries give you Positive/Negative/Neutral. This one gives you joy, anger, fear, sadness, disgust, and surprise with confidence scores.

services.AddForeverToolsSentiment(config["AIML_API_KEY"]);

var result = await _sentiment.AnalyzeAsync("The new checkout flow is so much faster, love it!");
// result.Sentiment = Positive
// result.Emotions = [{ Joy: 0.87 }, { Surprise: 0.12 }]
// result.Confidence = 0.94
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Useful for: customer feedback dashboards, support ticket prioritization, social media monitoring.

Download: ForeverTools.Sentiment on NuGet

3. ForeverTools.InvoiceParser — Structured Data from Any Receipt or Invoice 

dotnet add package ForeverTools.InvoiceParser
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Pass a PDF or image URL, get back a typed InvoiceData object with vendor name, invoice number, line items, totals, and tax. Uses GPT-4 Vision under the hood, handles multi-page documents.

var invoice = await _invoiceParser.ParseAsync(new ParseRequest
{
    FileUrl = "https://example.com/invoice.pdf"
});

Console.WriteLine($"Vendor: {invoice.VendorName}");
Console.WriteLine($"Total: {invoice.TotalAmount} {invoice.Currency}");
foreach (var item in invoice.LineItems)
    Console.WriteLine($"  {item.Description}: {item.UnitPrice} x {item.Quantity}");
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Alternative: Mindee charges $0.10/page. Veryfi is $500/month minimum. This uses your own API key.

Download: ForeverTools.InvoiceParser on NuGet

4. ForeverTools.ContentMod — Toxicity, Hate Speech, and Adult Content Detection 

dotnet add package ForeverTools.ContentMod
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Before you store user-generated content, run it through moderation. This library checks for toxicity, hate speech, adult content, and violence with per-category confidence scores.

var result = await _contentMod.ModerateAsync(new ModerationRequest
{
    Text = userInputText
});

if (result.Flagged)
{
    var reasons = result.Categories
        .Where(c => c.Flagged)
        .Select(c => c.Name);
    return BadRequest($"Content rejected: {string.Join(", ", reasons)}");
}
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Download: ForeverTools.ContentMod on NuGet

5. ForeverTools.CodeGen — AI Code Generation and Explanation 

dotnet add package ForeverTools.CodeGen
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Useful for building developer tools, internal assistants, or any app where users need code help. Supports generation, refactoring, explanation, and unit test generation.

var result = await _codeGen.GenerateAsync(new CodeGenRequest
{
    Description = "A C# method that validates UK postcodes using regex",
    Language = "csharp",
    IncludeTests = true
});

Console.WriteLine(result.Code);
Console.WriteLine(result.Explanation);
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Download: ForeverTools.CodeGen on NuGet

The Pattern

All five packages follow the same conventions:

  • Dependency injection: services.AddForeverTools{Package}(apiKey) — one line in Program.cs
  • Async-first: every operation is Task<T>, no blocking calls
  • Typed results: no dynamic or string parsing, just clean C# objects
  • BYOK: bring your own API key (AI/ML API at aimlapi.com) — no separate vendor account needed for most packages
  • .NET 6, 8, and .NET Standard 2.0 — works with everything from legacy WCF hosts to the latest Minimal API 
# Install all five
dotnet add package ForeverTools.EmailAI
dotnet add package ForeverTools.Sentiment
dotnet add package ForeverTools.InvoiceParser
dotnet add package ForeverTools.ContentMod
dotnet add package ForeverTools.CodeGen
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Source and issues: github.com/ForeverTools

Have you integrated AI into your .NET stack? What integration pain points have you hit? Drop a comment — always looking for the next wrapper to build.

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