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Merged
tghamm merged 3 commits into from
Feb 20, 2026
Merged

Feature/web search web fetch #188

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6bf725b
mcp-tune-up
tghamm Feb 20, 2026
6690410
adds a costing mechanism
tghamm Feb 20, 2026
2dca08b
support for enhanced web search + web fetch
tghamm Feb 20, 2026
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8 changes: 4 additions & 4 deletions Anthropic.SDK.Tests/Anthropic.SDK.Tests.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -34,12 +34,12 @@

<ItemGroup>
<PackageReference Include="Google.Cloud.AIPlatform.V1" Version="3.65.0" />
<PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="11.0.0-preview.1.26104.118" />
<PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.3" />
<PackageReference Include="Microsoft.Extensions.AI" Version="10.3.0" />
<PackageReference Include="ModelContextProtocol" Version="0.8.0-preview.1" />
<PackageReference Include="Microsoft.Extensions.Configuration" Version="11.0.0-preview.1.26104.118" />
<PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="11.0.0-preview.1.26104.118" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="11.0.0-preview.1.26104.118" />
<PackageReference Include="Microsoft.Extensions.Configuration" Version="10.0.3" />
<PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.3" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="10.0.3" />
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
<PackageReference Include="Microsoft.SemanticKernel" Version="1.71.0" />
<PackageReference Include="Microsoft.SemanticKernel.Abstractions" Version="1.71.0" />
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38 changes: 38 additions & 0 deletions Anthropic.SDK.Tests/CostTest.cs
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@@ -0,0 +1,38 @@
using Anthropic.SDK.Constants;
using Anthropic.SDK.Messaging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Anthropic.SDK.Extensions;

namespace Anthropic.SDK.Tests
{
[TestClass]
public class CostTest
{

[TestMethod]
public async Task TestCostEstimation()
{
var client = new AnthropicClient();
var parameters = new MessageParameters()
{
Messages = new List<Message> { new Message(RoleType.User, "Hello!") },
MaxTokens = 1024,
Model = AnthropicModels.Claude46Sonnet,
};
var response = await client.Messages.GetClaudeMessageAsync(parameters);

// Get total estimated cost
var cost = response.CalculateCost();
Console.WriteLine($"Total cost: ${cost.TotalCostUsd:F6}");
Console.WriteLine($" Input tokens: ${cost.InputTokenCost:F6}");
Console.WriteLine($" Output tokens: ${cost.OutputTokenCost:F6}");
Console.WriteLine($" Cache read: ${cost.CacheReadCost:F6}");
Console.WriteLine($" Cache creation: ${cost.CacheCreationCost:F6}");
Console.WriteLine($" Web search: ${cost.WebSearchCost:F6}");
}
}
}
16 changes: 8 additions & 8 deletions Anthropic.SDK.Tests/MCPTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,15 +18,15 @@ public async Task TestMCP()
var client = new AnthropicClient();
var parameters = new MessageParameters()
{
Model = AnthropicModels.Claude37Sonnet,
Model = AnthropicModels.Claude46Sonnet,
MaxTokens = 5000,
Temperature = 1,
MCPServers = new List<MCPServer>()
{
new MCPServer()
{
Url = "https://mcp.deepwiki.com/sse",
Name = "DeepWiki",
Url = "https://learn.microsoft.com/api/mcp",
Name = "MSFT",
}
}
};
Expand All @@ -37,7 +37,7 @@ public async Task TestMCP()
Role = RoleType.User,
Content = new List<ContentBase>
{
new TextContent { Text = "Tell me about the repo tghamm/Anthropic.SDK" }
new TextContent { Text = "Tell me about the Latest Microsoft.Extensions.AI Library" }
}
}
};
Expand All @@ -55,16 +55,16 @@ public async Task TestMCPExtendedStreaming()
var client = new AnthropicClient();
var parameters = new MessageParameters()
{
Model = AnthropicModels.Claude37Sonnet,
Model = AnthropicModels.Claude46Sonnet,
MaxTokens = 3000,
Temperature = 1,
Stream = true,
MCPServers = new List<MCPServer>()
{
new MCPServer()
{
Url = "https://mcp.deepwiki.com/sse",
Name = "DeepWiki",
Url = "https://learn.microsoft.com/api/mcp",
Name = "MSFT",
}
}
};
Expand All @@ -75,7 +75,7 @@ public async Task TestMCPExtendedStreaming()
Role = RoleType.User,
Content = new List<ContentBase>
{
new TextContent { Text = "Tell me about the repo tghamm/Anthropic.SDK" }
new TextContent { Text = "Tell me about the latest Microsoft.Extensions.AI Library" }
}
}
};
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240 changes: 239 additions & 1 deletion Anthropic.SDK.Tests/WebSearchFunctionality.cs
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Original file line number Diff line number Diff line change
@@ -1,12 +1,15 @@
using System;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Anthropic.SDK.Constants;
using Anthropic.SDK.Extensions;
using Anthropic.SDK.Messaging;
using Microsoft.Extensions.AI;
using Tool = Anthropic.SDK.Common.Tool;
using TextContent = Anthropic.SDK.Messaging.TextContent;

namespace Anthropic.SDK.Tests
{
Expand Down Expand Up @@ -158,5 +161,240 @@ public async Task TestWebSearchExtendedStreaming()
Console.WriteLine("Final Result:");
Console.WriteLine(textResult.Last().Text);
}

[TestMethod]
public async Task TestWebSearchDynamicFiltering()
{
var client = new AnthropicClient();
var parameters = new MessageParameters()
{
Model = AnthropicModels.Claude46Sonnet,
MaxTokens = 4096,
Temperature = 1,
Tools = new List<Common.Tool>()
{
ServerTools.GetWebSearchTool()
},
ToolChoice = new ToolChoice()
{
Type = ToolChoiceType.Auto
},
};
var messages = new List<Message>
{
new Message
{
Role = RoleType.User,
Content = new List<ContentBase>
{
new TextContent { Text = "Search for the current population of Tokyo and give me the number." }
}
}
};
parameters.Messages = messages;
var res = await client.Messages.GetClaudeMessageAsync(parameters);

Assert.IsNotNull(res);
Assert.IsTrue(res.Content.OfType<TextContent>().Any());
Console.WriteLine("----------------------------------------------");
Console.WriteLine("Dynamic Filtering Result:");
Console.WriteLine(res.Content.OfType<TextContent>().Last().Text);
}

[TestMethod]
public async Task TestWebFetch()
{
var client = new AnthropicClient();
var parameters = new MessageParameters()
{
Model = AnthropicModels.Claude46Sonnet,
MaxTokens = 4096,
Temperature = 1,
Tools = new List<Common.Tool>()
{
ServerTools.GetWebFetchTool(maxUses: 5, enableCitations: true,
toolVersion: ServerTools.WebFetchVersionLegacy)
},
ToolChoice = new ToolChoice()
{
Type = ToolChoiceType.Auto
},
};
var messages = new List<Message>
{
new Message
{
Role = RoleType.User,
Content = new List<ContentBase>
{
new TextContent { Text = "Fetch the content at https://www.wikipedia.org and tell me what it says." }
}
}
};
parameters.Messages = messages;
var res = await client.Messages.GetClaudeMessageAsync(parameters);

Assert.IsNotNull(res);
Assert.IsTrue(res.Content.OfType<TextContent>().Any());
Console.WriteLine("----------------------------------------------");
Console.WriteLine("Web Fetch Result:");
Console.WriteLine(res.Content.OfType<TextContent>().Last().Text);
}

[TestMethod]
public async Task TestWebFetchStreaming()
{
var client = new AnthropicClient();
var parameters = new MessageParameters()
{
Model = AnthropicModels.Claude46Sonnet,
MaxTokens = 4096,
Temperature = 1,
Stream = true,
Tools = new List<Common.Tool>()
{
ServerTools.GetWebFetchTool(maxUses: 5,
toolVersion: ServerTools.WebFetchVersionLegacy)
},
ToolChoice = new ToolChoice()
{
Type = ToolChoiceType.Auto
},
};
var messages = new List<Message>
{
new Message
{
Role = RoleType.User,
Content = new List<ContentBase>
{
new TextContent { Text = "Fetch the content at https://example.com and summarize it." }
}
}
};
parameters.Messages = messages;
var outputs = new List<MessageResponse>();
await foreach (var res in client.Messages.StreamClaudeMessageAsync(parameters))
{
if (res.Delta != null)
{
Debug.Write(res.Delta.Text);
}

outputs.Add(res);
}

var message = new Message(outputs);
Assert.IsNotNull(message);
Assert.IsTrue(message.Content.OfType<TextContent>().Any());
Console.WriteLine("----------------------------------------------");
Console.WriteLine("Web Fetch Streaming Result:");
Console.WriteLine(message.Content.OfType<TextContent>().Last().Text);
}

[TestMethod]
public async Task TestWebSearchWithLegacyVersion()
{
var client = new AnthropicClient();
var parameters = new MessageParameters()
{
Model = AnthropicModels.Claude46Sonnet,
MaxTokens = 3000,
Temperature = 1,
Tools = new List<Common.Tool>()
{
ServerTools.GetWebSearchTool(toolVersion: ServerTools.WebSearchVersionLegacy)
},
ToolChoice = new ToolChoice()
{
Type = ToolChoiceType.Auto
},
};
var messages = new List<Message>
{
new Message
{
Role = RoleType.User,
Content = new List<ContentBase>
{
new TextContent { Text = "What is the weather like in San Francisco right now?" }
}
}
};
parameters.Messages = messages;
var res = await client.Messages.GetClaudeMessageAsync(parameters);

Assert.IsNotNull(res);
Assert.IsTrue(res.Content.OfType<TextContent>().Any());
Console.WriteLine("----------------------------------------------");
Console.WriteLine("Legacy Web Search Result:");
Console.WriteLine(res.Content.OfType<TextContent>().Last().Text);
}

[TestMethod]
public async Task TestNonStreamingWebFetchChatClient()
{
IChatClient client = new AnthropicClient().Messages
.AsBuilder()
.UseFunctionInvocation()
.Build();

ChatOptions options = new ChatOptions()
{
ModelId = AnthropicModels.Claude46Sonnet,
MaxOutputTokens = 4096,
}.WithWebFetch(maxUses: 5, enableCitations: true);

var res = await client.GetResponseAsync(
"Fetch the content at https://example.com and tell me what it says.", options);

Assert.IsNotNull(res);
Assert.IsTrue(!string.IsNullOrEmpty(res.Text));
Console.WriteLine("----------------------------------------------");
Console.WriteLine("IChatClient Web Fetch Result:");
Console.WriteLine(res.Text);
}

[TestMethod]
public async Task TestCombinedWebSearchAndFetch()
{
var client = new AnthropicClient();
var parameters = new MessageParameters()
{
Model = AnthropicModels.Claude46Sonnet,
MaxTokens = 4096,
Temperature = 1,
Tools = new List<Common.Tool>()
{
ServerTools.GetWebSearchTool(maxUses: 3,
toolVersion: ServerTools.WebSearchVersionLegacy),
ServerTools.GetWebFetchTool(maxUses: 5, enableCitations: true,
toolVersion: ServerTools.WebFetchVersionLegacy)
},
ToolChoice = new ToolChoice()
{
Type = ToolChoiceType.Auto
},
};
var messages = new List<Message>
{
new Message
{
Role = RoleType.User,
Content = new List<ContentBase>
{
new TextContent { Text = "Search for the Anthropic homepage and then fetch its content to summarize it." }
}
}
};
parameters.Messages = messages;
var res = await client.Messages.GetClaudeMessageAsync(parameters);

Assert.IsNotNull(res);
Assert.IsTrue(res.Content.OfType<TextContent>().Any());
Console.WriteLine("----------------------------------------------");
Console.WriteLine("Combined Search + Fetch Result:");
Console.WriteLine(res.Content.OfType<TextContent>().Last().Text);
}
}
}
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