BackAnthropic·Claude APIWe launched a beta version of the C# SDKMonday, 8 September 2025Official notes on platform.claude.comFull release notesWe launched a beta version of the C# SDK.Older · Sep 5, 2025We've launched rate limit charts in the Console Usage page, allowing you to monitor your API rate limit…Newer · Sep 10, 2025We've launched the web fetch tool in beta, allowing Claude to retrieve full content from specified web pages…